BMP YANG Module
draft-ietf-grow-bmp-yang-04
| Document | Type | Active Internet-Draft (grow WG) | |
|---|---|---|---|
| Authors | Camilo Cardona , Paolo Lucente , Thomas Graf , Benoît Claise | ||
| Last updated | 2024-06-24 | ||
| Replaces | draft-cptb-grow-bmp-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | Proposed Standard | ||
| Formats | |||
| Yang Validation | 0 errors, 0 warnings | ||
| Additional resources |
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| Stream | WG state | WG Document | |
| Document shepherd | (None) | ||
| IESG | IESG state | I-D Exists | |
| Consensus boilerplate | Yes | ||
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
draft-ietf-grow-bmp-yang-04
GROW C. Cardona
Internet-Draft P. Lucente
Intended status: Standards Track NTT
Expires: 26 December 2024 T. Graf
Swisscom
B. Claise
Huawei
24 June 2024
BMP YANG Module
draft-ietf-grow-bmp-yang-04
Abstract
This document proposes a YANG module for the configuration and
monitoring of the BGP Monitoring Protocol (BMP).
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 26 December 2024.
Copyright Notice
Copyright (c) 2024 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Revised BSD License text as
described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Revised BSD License.
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Table of Contents
1. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Model description . . . . . . . . . . . . . . . . . . . . . . 3
2.1. IP Connectivity . . . . . . . . . . . . . . . . . . . . . 3
2.1.1. Active connection . . . . . . . . . . . . . . . . . . 3
2.1.2. Passive connection . . . . . . . . . . . . . . . . . 4
2.2. TCP Options . . . . . . . . . . . . . . . . . . . . . . . 5
2.3. Other BMP connectivity options . . . . . . . . . . . . . 8
2.4. BMP data . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.1. BMP route monitoring . . . . . . . . . . . . . . . . 10
2.4.1.1. Network instances . . . . . . . . . . . . . . . . 12
2.4.1.2. RIB Type . . . . . . . . . . . . . . . . . . . . 16
2.4.1.3. Address families . . . . . . . . . . . . . . . . 17
2.4.1.4. Peers . . . . . . . . . . . . . . . . . . . . . . 21
2.4.1.5. Filtering route-monitoring messages . . . . . . . 22
2.4.1.6. Full examples of Route monitoring
configurations . . . . . . . . . . . . . . . . . . 22
2.5. Session stats . . . . . . . . . . . . . . . . . . . . . . 27
2.6. Session reset action . . . . . . . . . . . . . . . . . . 27
3. Base ietf-bmp YANG module . . . . . . . . . . . . . . . . . . 27
3.1. Tree View . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2. YANG Module . . . . . . . . . . . . . . . . . . . . . . . 40
4. Security Considerations . . . . . . . . . . . . . . . . . . . 63
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 64
5.1. The IETF XML Registry . . . . . . . . . . . . . . . . . . 64
5.2. The YANG Module Name Registration . . . . . . . . . . . . 64
6. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 64
7. Normative References . . . . . . . . . . . . . . . . . . . . 64
Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 66
A.1. Example one . . . . . . . . . . . . . . . . . . . . . . . 67
A.2. Example two . . . . . . . . . . . . . . . . . . . . . . . 68
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 71
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 71
1. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in BCP
14 [RFC2119] [RFC8174] when, and only when, they appear in all
capitals, as shown here.
Routing Information Bases, peers, monitoring stations, and initiation
messages are defined in [RFC7854].
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2. Model description
This document specifies a YANG module for configuring and monitoring
the BGP Monitoring Protocol (BMP) [RFC7854]. The model provides
parameters for configuring the session to BMP monitoring stations;
the selection of the BGP Routing Information Bases (RIBs) for Route
Monitoring Messages; provides operational metrics and enables
resetting of BMP monitoring sessions.
The model is included in Section 3. In this section, we provide
details and examples of each of its parts.
The BMP yang model is placed at the root of the YANG tree. At its
upper level, the BMP model lists each monitoring station. Every
monitoring station is identified by an ID, which is a string provided
by the operator.
2.1. IP Connectivity
BMP allows for active and passive connections between the router and
the BMP monitoring station as described in Section 3.2 of [RFC7854].
In an active connection, the router establishes the TCP connection to
the monitoring station, while in a passive one, it is the monitoring
station which initiates the connection. The BMP yang module provides
options for both types of connection using a choice.
We describe each type of connection option next, and provide examples
of their configuration.
2.1.1. Active connection
For an active connection, the IP address and port of the monitoring
station, together with the local address MUST be provided. One can
optionally provide the local port for establishing the connection.
If the monitoring station is connected over a network-instance
instead of the global one, this one must also be specified. An
example of configuration is included in Figure 1.
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<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>1</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 1: Active connection example
Note in the example from Figure 1 that there is no network instance
defined, so the connection is using the global network instance.
2.1.2. Passive connection
In a passive connection, the IP of the monitoring station, the local
address and local port for the incoming connection must be specified.
If the port of the monitoring station is provided, it MUST match the
incoming connection. If the monitoring station is connected through
a network-instance instead of the global one, this one MUST also be
specified.
An incoming connection not matching a valid entry MUST be ignored by
the router.
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<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_two</id>
<connection>
<passive>
<network-instance>test</network-instance>
<station-address>192.0.2.1</station-address>
<local-address>192.0.2.2</local-address>
<local-port>57993</local-port>
</passive>
</connection>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 2: Passive connection example
2.2. TCP Options
The BMP module allows tuning various parameters of the TCP connection
supporting the BMP session:
* For configuring TCP keepalives, the connection container uses the
tcp-common-grouping from [I-D.ietf-netconf-tcp-client-server].
Please see Section 2.1.3.1 of [I-D.ietf-netconf-tcp-client-server]
for the explanation of each of its parameters. Note that for the
configuration of these parameters, the device must have the
feature "tcp-client-keepalives" enabled. See also Section 3.8.4
of [RFC9293]
* The maximum segment of the TCP connection. See Section 3.7.1 of
[RFC9293].
* Enabling MTU discovery for the path. See Section 3.7.2 of
[RFC9293].
* Session security. Provides options for authentication using AO
and MD5. This part of the model was taken from the BGP yang model
[I-D.ietf-idr-bgp-model].
Figures 3 and 4 include examples configuring the previous TCP
parameters in the model.
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<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>1</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
<tcp-options>
<keepalives>
<idle-time>15</idle-time>
<max-probes>3</max-probes>
<probe-interval>30</probe-interval>
</keepalives>
<maximum-segment-size>1500</maximum-segment-size>
<mtu-discovery>true</mtu-discovery>
</tcp-options>
</connection>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 3: Example of configuring basic TCP parameters
=============== NOTE: '\' line wrapping per RFC 8792 ================
<key-chains xmlns="urn:ietf:params:xml:ns:yang:ietf-key-chain">
<key-chain>
<name>bmp-key-chain</name>
<description>An example of TCP-AO configuration for BMP</descr\
iption>
<key>
<key-id>55</key-id>
<crypto-algorithm>aes-cmac-prf-128</crypto-algorithm>
<lifetime>
<send-lifetime>
<start-date-time>2023-01-01T00:00:00+00:00</start-date-t\
ime>
<end-date-time>2023-02-01T00:00:00+00:00</end-date-time>
</send-lifetime>
<accept-lifetime>
<start-date-time>2023-01-01T00:00:00+00:00</start-date-t\
ime>
<end-date-time>2023-02-01T00:00:00+00:00</end-date-time>
</accept-lifetime>
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</lifetime>
<key-string>
<keystring>teststring</keystring>
</key-string>
<authentication xmlns="urn:ietf:params:xml:ns:yang:ietf-tcp">
<keychain>bmp-key-chain</keychain>
<ao>
<send-id>65</send-id>
<recv-id>87</recv-id>
</ao>
</authentication>
</key>
<key>
<key-id>56</key-id>
<crypto-algorithm>aes-cmac-prf-128</crypto-algorithm>
<lifetime>
<send-lifetime>
<start-date-time>2023-01-01T00:00:00+00:00</start-date-t\
ime>
<end-date-time>2023-02-01T00:00:00+00:00</end-date-time>
</send-lifetime>
<accept-lifetime>
<start-date-time>2023-01-01T00:00:00+00:00</start-date-t\
ime>
<end-date-time>2023-02-01T00:00:00+00:00</end-date-time>
</accept-lifetime>
</lifetime>
<authentication xmlns="urn:ietf:params:xml:ns:yang:ietf-tcp">
<keychain>bmp-key-chain</keychain>
<ao>
<send-id>65</send-id>
<recv-id>87</recv-id>
</ao>
</authentication>
</key>
</key-chain>
</key-chains>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
<tcp-options>
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<secure-session-enable>true</secure-session-enable>
<secure-session>
<ao-keychain>bmp-key-chain</ao-keychain>
</secure-session>
</tcp-options>
</connection>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 4: Example of the Configuration of TCP session security.
2.3. Other BMP connectivity options
The model also includes the next options to configure the connection
to the BMP monitoring station:
* Initial-delay: a value in seconds that the device must hold back
before starting the connection to the station.
* Backoff time. Configuration of the backoff time strategy after
failing to connect to the monitoring station. The model includes
a basic exponential backoff with a default initial backoff of 30
seconds and a maximum of 720 seconds, as suggested in Section 3.2
of [RFC7854].
In the example in Figure 5, we configure an initial-delay of 10.
Configuring an initial-backoff of 50 seconds and 600 of maximum-
backoff.
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<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>1</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
<initial-delay>10</initial-delay>
<backoff>
<simple-exponential>
<initial-backoff>50</initial-backoff>
<maximum-backoff>600</maximum-backoff>
</simple-exponential>
</backoff>
</connection>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 5: Example of the initial-delay and simple exponential
backoff.
2.4. BMP data
The bmp-data container defines the configuration parameters for the
data that the device sends to the monitoring station using the
various BMP messages. See Section 4 of [RFC7854].
The BMP model defines options for the initiation message, the
statistics report, and the routing monitoring. The first two have
simple configurations options and are shortly described next. The
Routing monitoring is the most complex of all and it is detailed in
Section 2.4.1.
* Initiation-message: Content for an information TLV type-0 for
identification of the device. See 4.3 and Section 4.4 of
[RFC7854]
* Statistics-interval: The statistics report is enabled by the
presence of the bmp-statistics-report container. The statistics-
interval is mandatory if the bmp-statistics-report container
exists and defines the interval of the statistics report. See
Section 4.8 of [RFC7854].
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An example of configuring the previous options is included in
Figure 6
=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<initiation-message>BMP device supporting the BMP yang modul\
e</initiation-message>
<bmp-statistics-report>
<statistics-interval>600</statistics-interval>
</bmp-statistics-report>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 6: Example of configuration of initiation-message and
statistics report interval.
2.4.1. BMP route monitoring
Route monitoring messages are used for synchronization of RIBs to the
monitoring station. See Section 5 of [RFC7854].
The next 3 requirements were defined before designing this part of
the model.
* Operators might not want to receive all routes from all RIBs in a
network device. For instance, some devices contain a considerable
amount of data that might overwhelm the monitoring station. In
this cases, operators might want to only collect information from
an arbitrary subset of RIBs, address families, peers.
* Operators might want to configure the route monitoring messages
for different network instances differently. For example, they
might want to receive different address families from the global
network instance than in L3 VPN network instances.
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* In contrast to the previous points. some operators might want a
simple configuration that covers multiple cases (e.g. same config
for all peers, or same config for all network instances). This
would not only make configurations look smaller and concise, but
will reduce the need for reconfiguring devices when you add a new
peer or add a new network instance (which happens frequently on
some type of networks).
Based on the previous points, the BMP yang model is designed to
flexibly control the data sent through the BMP route monitoring
packets, yet it provides options to facilitate configurations for
simple cases, such as when the operator wants to receive all routes
from a RIB.
The Routing monitoring configuration is divided in a 4 part
hierarchy:
* Network Instance
* RIB Type (e.g. Adj-RIB-IN pre/post, local RIB)
* Address Family
* Peers
Absence of the routing monitoring container will disable the routing
monitoring messages to the monitoring station.
We'll offer an introduction to these hierarchies before going over
them with detail.
The number of RIB types (e.g. Adj-RIB-IN, etc/OUT and local RIB) and
Address families is low, and their configuration should not change
frequently. Therefore, they are configured explicitly in the model.
That is, the model does not provide a way of providing a default
configuration for these or configuring them in groups.
On the other hand, Network instances and peers require greater
flexibility.
For network instances, the model should configure not only the
"global" network instance (the main one configured under the /ietf-
routing:routing), but also other network instances configured under
the /ietf-network-instance:network-instances/. Also, network
instances can change frequently in networks with customer connecting
to Virtual Private Networks. To not force operators to change
configuration at every change, the model provides methods for
defining a "default" configuration for network instances. However,
to provide control over the configuration, each network instance can
be configured independently, if needed.
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A situation is similar with peers for the Adj-RIB-IN and Adj-RIB-OUT
RIBs. The model includes a way of configuring a default for all
peers for simple cases, but one can provide configuration for type of
peers, peergroups, or each peer individually.
We summarize the requirements stated on the previous two paragraphs
next:
For network instances:
* The configuration should be simple for cases where only the
"global" routing instance is enabled.
* The model should provide ways of configuring all Network instances
(kind of a default config for any Network instance that is
configured in the device).
* The model should provide a way of configuring network instances
individually.
For peers:
* The model should provide ways of configuring all peers, kind of a
default. This would be the most common case.
* The model should provide ways of configuring peergroups.
* The model should provide ways of configuring type of peers. For
instance, only send routes from eBGP peers.
* The model should provide ways of configuring individual peers.
For instance, turn a route-policy filtering prefix for a specific
peer, or turning off a peer that is noisy yet not important.
To further control the route monitoring data, the peer/peer-type
container includes a route-policy option in which the operator can
further filter the data send to the BMP monitoring station.
We'll describe each of the 4 hierarchies, and provide examples for
each, in the next sections.
2.4.1.1. Network instances
The routing monitoring configuration starts with the configuration of
network instances. A network instance can be configured individual
or it can be configured if it matches any of the selectors from the
"bmp-ni-types" identity. We explain each next
The model currently defines two bmp-ni-types identities: "bmp-ni-
types-all-ni" which selects all network instances, and "bmp-ni-types-
non-global-ni" which selects all network instances, except the global
one. The former can be used as a "default" configuration for simple
cases.
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The model offers two ways of configuring a network-instance
individually. The main one is under container "bmp-data/bmp-
monitoring-stations/" under the "routing/control-plane-protocols/
control-plane-protocol/bgp". The second one is specifying the name
under the "bmp/bmp-route-monitoring/network-instance". The former
one is the prefered method, since it allows for better validation of
the data. This method requires the support of schema-mount. The
latter method does not validate some leafs, but it does not requires
support for schema-mount by the device.
An empty configuration disables routing monitoring messages for the
selected network-instances. Operators can also use the "enable" leaf
to disable explicitly the routing messages for the network instance.
The route-monitoring data for a network instance can be configured by
maximum one element of the network-instances list. There SHOULD be
clear rules to which element to apply to a network instance in case
multiple elements can select it. We provide rules and examples in
the next part of the section.
* If the BGP container under the network-instance includes a BMP/
Route monitoring container, it SHOULD be configured by it. Note
that if the monitoring-station is not present in the container,
the route monitoring will be disabled for this network instance.
* If the bmp-ni-types-global-ni exist, the global network instance /
network instance SHOULD be configured using this element.
* If any /ni:network-instances/ni:network-instance/ is referenced,
the network instance SHOULD be configured using this element.
* Any Network instance not referenced by any rule above SHOULD be
configured using the bmp-ni-types-all-ni if one exists. If it
does not exist, then the network instance is not configured (and
therefore no route monitoring messages from the network instance
are sent to the monitoring station).
Any extension of the bmp-ni-types SHOULD provide explanations of how
to deal with case in which multiple elements select the same network
instance.
We provide examples of configuring the network instance level next.
For now, we will focus on the configuration using the BMP container
(not the configuration under the BGP container). To focus on the
network instance configuration, we mask the configuration under each
instance using "Configuration X".
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=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<!-- Configuration A -->
</network-instance>
<network-instance>
<network-instance-id>bmp-ni-types-global-ni</network-i\
nstance-id>
<!-- Configuration B -->
</network-instance>
<network-instance>
<network-instance-id>network-instance-two</network-ins\
tance-id>
<!-- Configuration C -->
</network-instance>
<network-instance>
<network-instance-id>network-instance-one</network-ins\
tance-id>
<enabled>false</enabled>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 7: Examples of configuring the network instance level for
Route Monitoring.
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In example from Figure 7, we have a "default" configuration
(Configuration A) applied to any network instance without any
explicit configuration. The global network instance and network-
instance-two get Configuration B and Configuration C, respectively.
The network-instance-one instance container disables the routing
monitoring messages for that network instance.
=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<!-- Configuration D -->
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 8: Example of configuring all network instances.
The example in Figure 8 shows a "simple" configuration. In this
case, all network instances would get "Configuration D". Note that
`bmp-ni-types-all-ni` would also cover the global instance.
Another simple configuration would just involve configuring the
global network instance. In this case, information of non-global
network instances would not be sent to the monitoring station. This
is depicted in Figure 9
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=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<!-- Configuration D -->
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 9: Example of configuring only the global network instance.
2.4.1.2. RIB Type
Alternatively to the configuration of Figure 9, one can configure
directly the global instance, but using the BMP configuration under
the BGP container
Each RIB type is configured explicitly in the model through a
container. The model currently provides containers for adj-rib-out-
pre, adj-rib-out-post, adj-rib-in-post, adj-rib-in-pre and local-rib.
An empty configuration or absence of a RIB-type container disables
route-messages for it. Operators can also disable the RIB-type route
monitoring messages by marking the "enabled" leaf as False.
We provide an example of this, together with address families, in the
next section
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2.4.1.3. Address families
Address families are configured explicitly within each RIB-TYPE using
a list. The key is of type `ietf-bgp-types:afi-safi-type` without
any further constraint.
An empty configuration or absence of an address family disables
route-messages for it. Operators can also disable the address-family
route monitoring messages by marking the "enabled" leaf as False.
We show a few examples of configuring RIB-Types and Address families
next. We will mask further configurations of address families with
"Configuration X" to focus on the covered parts.
=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<!-- Configuration F -->
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<!-- Configuration G -->
</address-family>
</address-families>
</adj-rib-in-pre>
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</network-instance>
<network-instance>
<network-instance-id>bmp-ni-types-global-ni</network-i\
nstance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<!-- Configuration H -->
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<!-- Configuration I -->
</address-family>
</address-families>
</adj-rib-in-pre>
<adj-rib-in-post>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<!-- Configuration H -->
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<!-- Configuration I -->
</address-family>
</address-families>
</adj-rib-in-post>
</network-instance>
<network-instance>
<network-instance-id>network-instance-one</network-ins\
tance-id>
<enabled>false</enabled>
</network-instance>
<network-instance>
<network-instance-id>network-instance-two</network-ins\
tance-id>
<adj-rib-in-post>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<!-- Configuration L -->
</address-family>
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</address-families>
</adj-rib-in-post>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 10: Example of configuring RIBs and address families.
In Figure 10, we expand previous sections examples with RIB-Type and
address families configurations. The expected result of the previous
configuration would be:
* For the global network instance, adj-rib-in-pre and adj-rib-in-
post RIBs are enabled. In each of them IPv4 and IPv6 address
families are configured. The configuration can be the same or
not, depending on the requirements of the operators. Any other
RIB and address families are disabled.
* Network instance one is disabled, meaning that routing monitoring
messages are disabled for that network instance.
* Network instance "network-instance-two" has adj-rib-out-post
enabled, but only address family ipv4-unicast is configured. The
ipv6-unicast will not be configured for this instance.
* For all other network instances, adj-rib-in-pre with IPv4 and IPv6
address families are configured, thanks to the configuration of
bmp-ni-types-all-ni
If an operator only wants to configure the IPv4/IPv6 of adj-rib-pre-
in for the global instance, the configuration in Figure 11 plus the
peer configuration (coming in next section) will be enough. We note
again that even if the configuration of both address families is the
same, they must be explicitly configured for each of them.
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=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-global-ni</network-i\
nstance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<!-- Configuration for ipv6-uniceast -->
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<!-- Configuration for ipv4-unicast -->
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 11: Example of configuring RIBs and address families.
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2.4.1.4. Peers
For adj-RIB-in and adj-RIB-out, both pre and post, the model requires
the selection of peer's RIBs that will be transmitted to the
monitoring station. The local-rib does not include this container.
Peers are a list indexed by a peer id, which can be one of the
following:
* An individual peer, using a remote address. For the configuration
under the "/bmp" tree, The model currently does not check if the
remote address exists, that would be a responsibility of the
device.
* Peergroups.
* A group of peers matching a BGP type. i.e. eBGP peers.
* One or more peers defined by an `bmp-peer-types` identity. The
BMP model currently provides the `bmp-peer-types-all-peers`
identity which select all peers. For simple cases, this is the
value that would normally be considered.
Peers MUST be selected (configured) by maximum a single instance of
the peers list. For the included keys in the BMP model, the process
to select which instance to use is the next:
* If there is a peer address matching the peer, it should be
configured using that instance.
* If the peer is of any BGP type listed in the peer list, it should
be configured using this instance.
* If there is a peer instance identified with the `bmp-peer-types-
all-peers`, it would be configured using this instance.
* Finally, if no instance covers the peer, the data from this peer
should not be transmitted to the monitoring station.
An empty configuration of a peer type disables route-messages for it.
Operators can also disable the address-family route monitoring
messages by marking the "enabled" leaf as False.
Any additional bmp-peer-types identity created SHOULD describe how to
unambiguously select a peer when there are conflicting options
(multiple options covering the peer).
We'll provide examples of the peers configuration after describing
the filter containers.
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2.4.1.5. Filtering route-monitoring messages
The local rib, and the peer containers within the rest of rib types,
include a filter container. This container includes mechanisms to
filter route-monitoring messages for the specific RIB.
The policy-filter can include a routing policy that, if existing,
should be applied to the outgoing updates to the monitoring station,
and would serve as a granular way of filtering the messages that the
monitoring station receives.
Note that the policy-filter contains an `accept-route` default export
policy. An operator can change it to a reject-route, if required.
The policies created with the routing-policy can perform a large
variety of actions routes, and can filter them based on multiple
characteristics. For the consistency of the data in the monitoring
station, the route policies actions SHOULD be restricted to accepting
or rejecting routes. Furthermore, the conditions SHOULD only match
prefix sets.
We present examples of full configurations next.
2.4.1.6. Full examples of Route monitoring configurations
2.4.1.6.1. Example one
In the example configuration from Figure 12, address families IPv6
and IPv4 are configured to send all peers. This is an example of a
simple configuration
=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
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<network-instance>
<network-instance-id>bmp-ni-types-global-ni</network-i\
nstance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers\
</peer-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers\
</peer-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 12: Enabling Route monitoring for all peers; all network
instances; IPv4/ IPv6 Address families, in the adj-rib-in-pre
RIB.
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2.4.1.6.2. Example two
In the example in Figure 13, the global network instance enables the
adj-rib-in-pre. In this RIB, the IPv4 unicast address family is
configured for all external peers. We assume peer 198.51.100.1 is
external, but its BGP configuration is not shown in the snippet.
Peer 198.51.100.1, however, has a specific configuration: it
announces everything but prefixes matching the test_policy list.
Note that there is a default accept-route default policy in the
model.
=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<routing-policy xmlns="urn:ietf:params:xml:ns:yang:ietf-routing-poli\
cy">
<policy-definitions>
<policy-definition>
<name>test_policy</name>
<!-- Policy definition -->
</policy-definition>
</policy-definitions>
</routing-policy>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-global-ni</network-ins\
tance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml:n\
s:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
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<peer-types-bmp>bmp-peer-types-all-peers</pe\
er-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml:n\
s:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
<peer-types>
<peer-type>
<peer-type-id>external</peer-type-id>
</peer-type>
</peer-types>
<peers>
<peer>
<peer-id-str>198.51.100.1</peer-id-str>
<filters>
<policy-filter>
<export-policy>test_policy</export-polic\
y>
</policy-filter>
</filters>
</peer>
</peers>
</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 13: Configuring address families differently for the
global network instance
2.4.1.6.3. Example three
In the example from Figure 14, all network instances have adj-rib-in-
pre with IPv6 and IPv4 configured receiving all peers. network-
instance-one is disabled, and network-instance-two is announcing only
the local-rib/IPv4 unicast routes.
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=============== NOTE: '\' line wrapping per RFC 8792 ================
<?xml version="1.0"?>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>monitoring_station_one</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers</pe\
er-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers</pe\
er-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
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</network-instance>
<network-instance>
<network-instance-id>network-instance-one</network-ins\
tance-id>
<enabled>false</enabled>
</network-instance>
<network-instance>
<network-instance-id>network-instance-two</network-ins\
tance-id>
<local-rib>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
</address-family>
</address-families>
</local-rib>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 14: Applying a general configuration to all network
instances, except of two, which are configured specifically.
2.5. Session stats
The non-configurable container "session-stats" includes various
metrics for the session with the monitoring station.
2.6. Session reset action
The "session-reset" action resets a session with a monitoring
station.
3. Base ietf-bmp YANG module
3.1. Tree View
The following tree diagram provides an overview of the ietf-bmp.yang
data model.
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=============== NOTE: '\' line wrapping per RFC 8792 ================
module: ietf-bmp
+--rw bmp
+--rw bmp-monitoring-stations
+--rw bmp-monitoring-station* [id]
+--rw id string
+--rw connection
| +--rw (passive-or-active)
| | +--:(active)
| | | +--rw active
| | | +--rw network-instance? string
| | | +--rw station-address inet:ip-address
| | | +--rw station-port inet:port-number
| | | +--rw local-address inet:ip-address
| | | +--rw local-port? inet:port-number
| | +--:(passive)
| | +--rw passive
| | +--rw network-instance? string
| | +--rw station-address inet:ip-address
| | +--rw station-port? inet:port-number
| | +--rw local-address inet:ip-address
| | +--rw local-port inet:port-number
| +--rw tcp-options
| | +--rw maximum-segment-size? uint16
| | +--rw mtu-discovery? boolean
| | +--rw keepalives! {keepalives-supported}?
| | | +--rw idle-time uint16
| | | +--rw max-probes uint16
| | | +--rw probe-interval uint16
| | +--rw secure-session-enable? boolean
| | +--rw secure-session
| | +--rw (authentication)
| | +--:(ao)
| | | +--rw ao-keychain?
| | | key-chain:key-chain-ref
| | +--:(md5)
| | +--rw md5-keychain?
| | key-chain:key-chain-ref
| +--rw initial-delay? uint32
| +--rw backoff
| +--rw (backoff-options)?
| +--:(simple-exponential)
| +--rw simple-exponential
| +--rw initial-backoff? uint32
| +--rw maximum-backoff? uint32
+--rw bmp-data
| +--rw initiation-message? string
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| +--rw bmp-statistics-report!
| | +--rw statistics-interval uint32
| +--rw bmp-route-monitoring
| +--rw network-instance-configuration
| +--rw network-instance* [network-instance-id]
| +--rw network-instance-id union
| +--rw enabled? boolean
| +--rw adj-rib-in-pre
| | +--rw address-families
| | +--rw address-family*
| | [address-family-id]
| | +--rw address-family-id
| | | identityref
| | +--rw enabled?
| | | boolean
| | +--rw peers-configurations
| | +--rw peers
| | | +--rw peer* [peer-id-str]
| | | +--rw peer-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw peer-groups
| | | +--rw peer-group*
| | | [peer-group-id-str]
| | | +--rw peer-group-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw bmp-peer-types
| | | +--rw bmp-peer-type*
| | | [peer-types-bmp]
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| | | +--rw peer-types-bmp
| | | | identityref
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw peer-types
| | +--rw peer-type*
| | | [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-pol\
icy?
| | rt-pol:default-p\
olicy-type
| +--rw adj-rib-in-post
| | +--rw address-families
| | +--rw address-family*
| | [address-family-id]
| | +--rw address-family-id
| | | identityref
| | +--rw enabled?
| | | boolean
| | +--rw peers-configurations
| | +--rw peers
| | | +--rw peer* [peer-id-str]
| | | +--rw peer-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
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t-policy-type
| | +--rw peer-groups
| | | +--rw peer-group*
| | | [peer-group-id-str]
| | | +--rw peer-group-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw bmp-peer-types
| | | +--rw bmp-peer-type*
| | | [peer-types-bmp]
| | | +--rw peer-types-bmp
| | | | identityref
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw peer-types
| | +--rw peer-type*
| | | [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-pol\
icy?
| | rt-pol:default-p\
olicy-type
| +--rw local-rib
| | +--rw address-families
| | +--rw address-family*
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| | [address-family-id]
| | +--rw address-family-id
| | | identityref
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-policy-\
type
| +--rw adj-rib-out-pre
| | +--rw address-families
| | +--rw address-family*
| | [address-family-id]
| | +--rw address-family-id
| | | identityref
| | +--rw enabled?
| | | boolean
| | +--rw peers-configurations
| | +--rw peers
| | | +--rw peer* [peer-id-str]
| | | +--rw peer-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw peer-groups
| | | +--rw peer-group*
| | | [peer-group-id-str]
| | | +--rw peer-group-id-str
| | | | string
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
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| | +--rw bmp-peer-types
| | | +--rw bmp-peer-type*
| | | [peer-types-bmp]
| | | +--rw peer-types-bmp
| | | | identityref
| | | +--rw enabled?
| | | | boolean
| | | +--rw filters
| | | +--rw policy-filter
| | | +--rw export-policy*
| | | | leafref
| | | +--rw default-export-\
policy?
| | | rt-pol:defaul\
t-policy-type
| | +--rw peer-types
| | +--rw peer-type*
| | | [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-pol\
icy?
| | rt-pol:default-p\
olicy-type
| +--rw adj-rib-out-post
| +--rw address-families
| +--rw address-family*
| [address-family-id]
| +--rw address-family-id
| | identityref
| +--rw enabled?
| | boolean
| +--rw peers-configurations
| +--rw peers
| | +--rw peer* [peer-id-str]
| | +--rw peer-id-str
| | | string
| | +--rw enabled?
| | | boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
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| | +--rw default-export-\
policy?
| | rt-pol:defaul\
t-policy-type
| +--rw peer-groups
| | +--rw peer-group*
| | [peer-group-id-str]
| | +--rw peer-group-id-str
| | | string
| | +--rw enabled?
| | | boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-\
policy?
| | rt-pol:defaul\
t-policy-type
| +--rw bmp-peer-types
| | +--rw bmp-peer-type*
| | [peer-types-bmp]
| | +--rw peer-types-bmp
| | | identityref
| | +--rw enabled?
| | | boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-\
policy?
| | rt-pol:defaul\
t-policy-type
| +--rw peer-types
| +--rw peer-type*
| | [peer-type-id]
| | +--rw peer-type-id
| | bt:peer-type
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-pol\
icy?
| rt-pol:default-p\
olicy-type
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+--ro session-stats
| +--ro discontinuity-time
| | yang:date-and-time
| +--ro established-session? boolean
| +--ro total-route-monitoring-messages? uint64
| +--ro total-statistics-messages? uint64
| +--ro total-peer-down-messages? uint64
| +--ro total-peer-up-messages? uint64
| +--ro total-initiation-messages? uint64
| +--ro total-route-mirroring-messages? uint64
+--rw actions
+---x session-reset
+--ro output
+--ro (outcome)?
+--:(success)
| +--ro success? empty
+--:(failure)
+--ro failure? string
augment /rt:routing/rt:control-plane-protocols
/rt:control-plane-protocol/bgp:bgp:
+--rw bmp-data
+--rw bmp-monitoring-stations!
+--rw bmp-monitoring-station* [id]
+--rw id string
+--rw bmp-route-monitoring!
+--rw enabled? boolean
+--rw adj-rib-in-pre
| +--rw address-families
| +--rw address-family* [address-family-id]
| +--rw address-family-id
| | identityref
| +--rw enabled? boolean
| +--rw peers-configurations
| +--rw bmp-peer-types
| | +--rw bmp-peer-type*
| | [peer-types-bmp]
| | +--rw peer-types-bmp
| | | identityref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peer-types
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| | +--rw peer-type* [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-policy-t\
ype
| +--rw peer-groups
| | +--rw peer-group* [peer-id]
| | +--rw peer-id leafref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peers
| +--rw peer* [peer-id]
| +--rw peer-id leafref
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
| rt-pol:default-polic\
y-type
+--rw adj-rib-in-post
| +--rw address-families
| +--rw address-family* [address-family-id]
| +--rw address-family-id
| | identityref
| +--rw enabled? boolean
| +--rw peers-configurations
| +--rw bmp-peer-types
| | +--rw bmp-peer-type*
| | [peer-types-bmp]
| | +--rw peer-types-bmp
| | | identityref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
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| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peer-types
| | +--rw peer-type* [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-policy-t\
ype
| +--rw peer-groups
| | +--rw peer-group* [peer-id]
| | +--rw peer-id leafref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peers
| +--rw peer* [peer-id]
| +--rw peer-id leafref
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
| rt-pol:default-polic\
y-type
+--rw local-rib
| +--rw address-families
| +--rw address-family* [address-family-id]
| +--rw address-family-id identityref
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
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| rt-pol:default-policy-type
+--rw adj-rib-out-pre
| +--rw address-families
| +--rw address-family* [address-family-id]
| +--rw address-family-id
| | identityref
| +--rw enabled? boolean
| +--rw peers-configurations
| +--rw bmp-peer-types
| | +--rw bmp-peer-type*
| | [peer-types-bmp]
| | +--rw peer-types-bmp
| | | identityref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peer-types
| | +--rw peer-type* [peer-type-id]
| | | +--rw peer-type-id
| | | bt:peer-type
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-policy-t\
ype
| +--rw peer-groups
| | +--rw peer-group* [peer-id]
| | +--rw peer-id leafref
| | +--rw enabled? boolean
| | +--rw filters
| | +--rw policy-filter
| | +--rw export-policy*
| | | leafref
| | +--rw default-export-policy?
| | rt-pol:default-polic\
y-type
| +--rw peers
| +--rw peer* [peer-id]
| +--rw peer-id leafref
| +--rw enabled? boolean
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| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
| rt-pol:default-polic\
y-type
+--rw adj-rib-out-post
+--rw address-families
+--rw address-family* [address-family-id]
+--rw address-family-id
| identityref
+--rw enabled? boolean
+--rw peers-configurations
+--rw bmp-peer-types
| +--rw bmp-peer-type*
| [peer-types-bmp]
| +--rw peer-types-bmp
| | identityref
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
| rt-pol:default-polic\
y-type
+--rw peer-types
| +--rw peer-type* [peer-type-id]
| | +--rw peer-type-id
| | bt:peer-type
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
| rt-pol:default-policy-t\
ype
+--rw peer-groups
| +--rw peer-group* [peer-id]
| +--rw peer-id leafref
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy*
| | leafref
| +--rw default-export-policy?
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| rt-pol:default-polic\
y-type
+--rw peers
+--rw peer* [peer-id]
+--rw peer-id leafref
+--rw enabled? boolean
+--rw filters
+--rw policy-filter
+--rw export-policy*
| leafref
+--rw default-export-policy?
rt-pol:default-polic\
y-type
3.2. YANG Module
<CODE BEGINS> file "ietf-bmp@2022-01-27.yang"
module ietf-bmp {
yang-version 1.1;
namespace "urn:ietf:params:xml:ns:yang:ietf-bmp";
prefix bmp;
import ietf-yang-types {
prefix yang;
}
import ietf-routing {
prefix rt;
reference
"RFC 8349: A YANG Data Model for Routing Management
(NMDA Version).";
}
import ietf-bgp {
prefix bgp;
reference
"I-D.draft-ietf-idr-bgp-model-17:
BGP YANG module for Service Provider Network.";
}
import ietf-inet-types {
prefix inet;
reference
"RFC 6991: Common YANG Data Types";
}
import ietf-bgp-types {
prefix bt;
reference
"RFC AAAA: BGP YANG module for Service Provider Network.
RFC-EDITOR: please update XXX with the RFC ID assigned
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to I-D.ietf-idr-bgp-model";
}
import ietf-netconf-acm {
prefix nacm;
reference
"RFC 8341: Network Configuration Access Control Model";
}
import ietf-tcp-common {
prefix tcpcmn;
reference
"I-D.ietf-netconf-tcp-client-server: YANG Groupings for TCP
Clients and TCP Servers.";
}
import ietf-routing-policy {
prefix rt-pol;
reference
"RFC 9067: A YANG Data Model for Routing Policy";
}
import ietf-key-chain {
prefix key-chain;
reference
"RFC 8177: YANG Key Chain.";
}
organization
"IETF GROW Working Group";
contact
"WG Web: <https://datatracker.ietf.org/wg/grow/>
WG List: <mailto:grow@ietf.org>
Author: Camilo Cardona
<mailto:camilo@ntt.net>
Author: Paolo Lucente
<mailto:cpaolo@ntt.net>
Author: Thomas Graf
<mailto:thomas.graf@swisscom.com>
Author: Benoit Claise
<mailto:benoit.claise@huawei.com>";
description
"This module specifies a structure for BMP
(BGP Monitoring Protocol) configuration and monitoring.
The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL',
'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED',
'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document
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are to be interpreted as described in BCP 14 (RFC 2119)
(RFC 8174) when, and only when, they appear in all
capitals, as shown here.
Copyright (c) 2022 IETF Trust and the persons identified as
authors of the code. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, is permitted pursuant to, and subject to
the license terms contained in, the Revised BSD License set
forth in Section 4.c of the IETF Trust's Legal Provisions
Relating to IETF Documents
(https://trustee.ietf.org/license-info).
This version of this YANG module is part of RFC 9196
(https://www.rfc-editor.org/info/rfc9196); see the RFC itself
for full legal notices.";
revision 2024-04-03 {
description
"initial version";
reference
"RFC YYYY: BMP YANG Module
RFC-EDITOR: please update YYYY with this RFC ID";
}
identity bmp-peer-types {
description
"Enum values for selecting peers";
}
identity bmp-peer-types-all-peers {
base bmp-peer-types;
description
"This identity selects all peer's RIBs.
When used, it act as a 'default' configuration.";
}
identity bmp-ni-types {
description
"Enum values for selecting multiple Network instances
for configuration";
}
identity bmp-ni-types-all-ni {
base bmp-ni-types;
description
"The identify is an explicit way
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of selecting all network instances.";
}
identity bmp-ni-types-global-ni {
base bmp-ni-types;
description
"Configuring the global one";
}
identity bmp-ni-types-non-global-ni {
base bmp-ni-types;
description
"The identify is an explicit way
of selecting all network instances, except th e global-one.";
}
grouping bmp-tcp-options {
description
"TCP options for the connection to the station";
leaf maximum-segment-size {
type uint16;
description
"Maximum segment size for the TCP connections.
In the absence of this container, the system
would select the maximum segment size for this
connection";
}
// Taken from the bgp yang module
leaf mtu-discovery {
type boolean;
default "true";
description
"Turns path mtu discovery for the TCP sessions
on (true) or off (false).";
reference
"RFC 1191: Path MTU discovery.";
}
uses tcpcmn:tcp-common-grouping;
// taken from the bgp yang module
leaf secure-session-enable {
type boolean;
default "false";
description
"Does this session need to be secured?";
}
container secure-session {
when "../secure-session-enable = 'true'";
description
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"Container for describing how a particular BMP session
is to be secured.";
choice authentication {
mandatory true;
case ao {
leaf ao-keychain {
type key-chain:key-chain-ref;
description
"Reference to the key chain that will be used by
this model. Applicable for TCP-AO and TCP-MD5
only";
reference
"RFC 8177: YANG Key Chain.";
}
description
"Uses TCP-AO to secure the session. Parameters for
those are defined as a grouping in the TCP YANG
model.";
reference
"RFC 5925 - The TCP Authentication Option.";
}
case md5 {
leaf md5-keychain {
type key-chain:key-chain-ref;
description
"Reference to the key chain that will be used by
this model. Applicable for TCP-AO and TCP-MD5
only";
reference
"RFC 8177: YANG Key Chain.";
}
description
"Uses TCP-MD5 to secure the session. Parameters for
those are defined as a grouping in the TCP YANG
model.";
reference
"RFC 5925: The TCP Authentication Option.";
}
description
"Choice of TCP authentication.";
}
}
}
grouping bmp-ip-connection {
description
"common elements for defining connectivity
to a BMP monitoring station";
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choice passive-or-active {
mandatory true;
description
"Choice for active or passive connection as described
in section 3.2 of RFC 7854";
case active {
description
"The device starts the connection to the monitoring
station";
container active {
description
"The device starts the connection to
the monitoring station";
leaf network-instance {
// TODO:This will not be supported for
// implementations not supporting schema-mount.
// Should just leave it as a string?
// type leafref {
// path "/ni:network-instances/ni:network-instance/"
// + "ni:name";
// }
type string;
description
"If present, specifies the network instance
used to reach the monitoring station.
If not provided, the global network
instance is used.";
}
leaf station-address {
type inet:ip-address;
mandatory true;
description
"Destination IP address of monitoring station";
}
leaf station-port {
type inet:port-number;
mandatory true;
description
"Destination port of the station";
}
leaf local-address {
type inet:ip-address;
mandatory true;
description
"Local IP address to source active connection";
}
leaf local-port {
type inet:port-number;
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description
"Optional Local port for active connection";
}
}
}
case passive {
description
"The device waits for the connection
in a local endpoint";
container passive {
description
"The device waits for the connection
in a local endpoint";
leaf network-instance {
// TODO:This will not be supported for
// implementations not supporting schema-mount.
// Should just leave it as a string?
// type leafref {
// path "/ni:network-instances/ni:network-instance/"
// + "ni:name";
// }
type string;
description
"If present, specifies the network instance
used to reach the monitoring station.
If not provided, the global network
instance is used.";
}
leaf station-address {
type inet:ip-address;
mandatory true;
description
"address of the station";
}
leaf station-port {
type inet:port-number;
description
"Optional value identifying the origin port of
the connection, if provided it MUST match";
}
leaf local-address {
type inet:ip-address;
mandatory true;
description
"Local IP address to wait for the connection";
}
leaf local-port {
type inet:port-number;
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mandatory true;
description
"Local port to wait for the connection";
}
}
}
}
}
grouping bmp-source-configuration {
description
"Group containing some general characteristics for configuring
a BMP source";
container filters {
description
"Includes containers specifying filters for deciding
which routes to export to the station";
container policy-filter {
description
"Filter routes based on a policy.
The policy SHOULD NOT perform any action besides
filtering routes.
The policy SHOULD only contain accept and reject
routes, and the matching conditions SHOULD only
match prefix sets.";
leaf-list export-policy {
type leafref {
path "/rt-pol:routing-policy/"
+ "rt-pol:policy-definitions/"
+ "rt-pol:policy-definition/rt-pol:name";
require-instance true;
}
ordered-by user;
description
"List of policy names in sequence used to select
routes to be exported to station.";
}
leaf default-export-policy {
type rt-pol:default-policy-type;
default "accept-route";
description
"Explicitly set a default policy if no policy
definition in the export policy chain
is satisfied.";
}
}
}
}
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grouping bmp-ni-peer-ribs-filter {
description
"Leaves for configuring RIBs where under the BGP
container.";
container address-families {
description
"container for lists of address-families";
list address-family {
key "address-family-id";
description
"List of address families.
The name of the address family, as defined
in the BGP model is used for keying.";
leaf address-family-id {
type identityref {
base bt:afi-safi-type;
}
description
"Address family id to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables route monitoring messages
for the address family";
}
container peers-configurations {
description
"Every peer under the configured network instance can be
at most configured by one of the next containers. If the
peer is not covered by any, then no BMP message should
include information from/to that peer. If the peer is
covered by more than one, then the priority is:
1. peers
2. peer-groups
3. peer-type
4. bmp-peer-types
New child containers or new bmp-peer-types instances
SHOULD provide a way of unambiguislly selecting which
configuration container should be selected for a peer in
case mutiple matches.
";
container bmp-peer-types {
description
"Generic identification of peers to configure.";
list bmp-peer-type {
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key "peer-types-bmp";
description
"Identification of peers
for which we send BMP data to the collector
using a peer type defined using a peer-types-bmp.
For instance, to create a default for all
peers use bmp-peer-types-all-peers";
leaf peer-types-bmp {
type identityref {
base bmp-peer-types;
}
description
"Peer type to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
container peer-types {
description
"Generic identification of peers to configure.";
list peer-type {
key "peer-type-id";
description
"Identification of peers
for which we send BMP data to the collector
using BGP peer-type (e.g. internal, external)
";
leaf peer-type-id {
type bt:peer-type;
description
"BGP Peer type to configure";
}
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
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}
container peer-groups {
description
"Identification of peer-groups
to configure";
list peer-group {
key "peer-id";
description
"Identification of peer-groups
for which we send BMP data to the collector";
leaf peer-id {
type leafref {
path "../../../../../../../../../../../"
+ "bgp:peer-groups/bgp:peer-group/"
+ "bgp:name";
}
description
"Peergroup to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer-group(s).";
}
uses bmp-source-configuration;
}
}
container peers {
description
"Identification of peers
for which we send BMP data to the collector";
list peer {
key "peer-id";
description
"Identification of peers
for which we send BMP data to the collector";
leaf peer-id {
type leafref {
path "../../../../../../../../../../../"
+ "bgp:neighbors/bgp:neighbor/"
+ "bgp:remote-address";
}
description
"Peer to configure";
}
leaf enabled {
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type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
}
}
}
}
grouping bmp-peer-ribs-filter {
description
"Leaves for configuring RIBs
under the main BMP container";
container address-families {
description
"container for lists of address-families";
list address-family {
key "address-family-id";
description
"List of address families.
The name of the address family, as defined
in the BGP model is used for keying.";
leaf address-family-id {
type identityref {
base bt:afi-safi-type;
}
description
"Address family id to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables route monitoring messages
for the address family";
}
container peers-configurations {
description
"Every peer under this BGP instance
can be at most configured by one of the next containers.
If the peer is not covered by any, then no BMP
message should include information from/to that peer.
If the peer is covered by more than one, then the
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priority is:
1. peer
2. peer-groups
3. peer-type
4. bmp-peer-types
New child containers or new bmp-peer-types instances
SHOULD provide a way of unambiguislly selecting which
configuration container should be selected for a peer in
case mutiple matches.
";
container peers {
description
"Generic identification of peers to configure.";
list peer {
key "peer-id-str";
description
"Identification of the peer. It is up to the
implementation to define what to do if no peer
matches this key.";
leaf peer-id-str {
type string;
description
"Peer to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
container peer-groups {
description
"Generic identification of peers to configure.";
list peer-group {
key "peer-group-id-str";
description
"Identification of the peer-group. It is up to the
implementation to define what to do if no peer-group
with this name exists.";
leaf peer-group-id-str {
type string;
description
"Peer-group to configure";
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}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
container bmp-peer-types {
description
"Generic identification of peers to configure.";
list bmp-peer-type {
key "peer-types-bmp";
description
"Identification of peers
for which we send BMP data to the collector
using a peer type defined using a peer-types-bmp.
For instance, to create a default for all
peers use bmp-peer-types-all-peers";
leaf peer-types-bmp {
type identityref {
base bmp-peer-types;
}
description
"Peer type to configure";
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
container peer-types {
description
"Generic identification of peers to configure.";
list peer-type {
key "peer-type-id";
description
"Identification of peers
for which we send BMP data to the collector
using BGP peer-type (e.g. internal, external)
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";
leaf peer-type-id {
type bt:peer-type;
description
"BGP peer-type to configure";
}
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring messages
for the peer(s).";
}
uses bmp-source-configuration;
}
}
}
}
}
grouping bmp-route-monitoring-sources {
description
"Route monitoring sources";
reference
"RFC7854: BGP Monitoring Protocol, Section 5.";
container network-instance-configuration {
description
"This container offers various options for configuring BMP
route-monitoring messages for each network instance.
Additionally, network instances can be configured under the
bmp-data container that this module includes under the
/rt:routing/rt:control-plane-protocols/
rt:control-plane-protocol/bgp:bgp container.
This container also holds a way of configuring the network
instance directly. This is redundant , and unfavoured to the
configuration under the bgp container, but it might be used
for implementation not yet supporting schema-mount since
that is required for adding control-plane infromation using
the ietf-network-instance module.
This container also provides a way of configuring
network-instances by 'bmp-ni-types'. It currently holds two
instances: bmp-ni-types-all-ni to configure all network
instances (serving as a default), and
bmp-ni-types-non-global-ni that configures all non-global
network instances: i.e. providing a default for all network
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instances under the ietf-network-instance module.
A single configuration container Network MUST
be applied to a network instance. If not containe matches a
network instance, the BMP route monitoring messages SHOULD
be disabled for that network instance. If more than one
container matches a network-instance the order of
preference is:
1. The configuration under the BGP container
2. The Network-instance under this container
3. bmp-ni-types: bmp-ni-types-non-global-ni (if it matches).
4. bmp-ni-types: bmp-ni-types-all-ni
New identities under bmp-ni-types or augmentations of this
container in the future SHOULD provide a clear way of
selecting the configuration container for a network-instance
without ambiguity.";
list network-instance {
key "network-instance-id";
description
"Network instance to monitory using BMP.";
leaf network-instance-id {
type union {
type identityref {
base bmp-ni-types;
}
// TODO:This will not be supported for
// implementations not supporting schema-mount.
// Should just leave it as a string to be useful without
// schema-mount??
//type leafref {
// path "/ni:network-instances/ni:network-instance/"
// + "ni:name";
//}
type string;
}
description
"Identification of a network-instance.
Network instances can be identified
directly by their path or use an identity to
identify one or a group of them
(e.g. bmp-ni-types-all-ni for all of them)";
}
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring
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messages for the network instance.";
}
container adj-rib-in-pre {
description
"Configuration for the adj-rib-in pre-policy";
reference
"RFC7854: BGP Monitoring Protocol (BMP), Section 2.";
uses bmp-peer-ribs-filter;
}
container adj-rib-in-post {
description
"Configuration for the adj-rib-in post-policy";
reference
"RFC7854: BGP Monitoring Protocol (BMP), Section 2.";
uses bmp-peer-ribs-filter;
}
container local-rib {
description
"Configuration for the local-rib";
reference
"RFC9069: Support for Local RIB in the BGP Monitoring
Protocol (BMP), Section 3.";
container address-families {
description
"List of address families to enable for
local-rib.";
list address-family {
key "address-family-id";
description
"Address family to enable for local-rib";
leaf address-family-id {
type identityref {
base bt:afi-safi-type;
}
description
"Address family id to enable for local-rib";
}
uses bmp-source-configuration;
}
}
}
container adj-rib-out-pre {
description
"Configuration for the adj-rib-out pre-policy";
uses bmp-peer-ribs-filter;
reference
"RFC8671: Support for Adj-RIB-Out in the BGP Monitoring
Protocol (BMP) , Section 3.";
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}
container adj-rib-out-post {
description
"Configuration for the adj-rib-out post-policy";
uses bmp-peer-ribs-filter;
reference
"RFC8671: Support for Adj-RIB-Out in the BGP Monitoring
Protocol (BMP) , Section 3.";
}
}
}
}
container bmp {
description
"Main level for BMP configuration ";
container bmp-monitoring-stations {
description
"Container for the list of BMP monitoring stations";
list bmp-monitoring-station {
key "id";
description
"Configuration for a BMP monitoring station.";
leaf id {
type string;
description
"Identification string for the monitoring station";
}
// Connection, missing tcp tuning params
// like keep-alives, segment sizes, etc.
container connection {
description
"Connection details for the monitoring station";
uses bmp-ip-connection;
container tcp-options {
description
"TCP options for the connection to the monitoring
station";
uses bmp-tcp-options;
}
leaf initial-delay {
type uint32;
units "seconds";
default "0";
description
"Initial delay of the connection to the station";
}
container backoff {
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description
"Configures the backoff strategy after a connection
retry";
reference
"RFC7854 Section 3.2";
choice backoff-options {
description
"Options for backoff strategies";
reference
"RFC7854 Section 3.2";
case simple-exponential {
description
"Simple exponential backoff with limits.";
container simple-exponential {
description
"Simple exponential backoff with limits.
Starts with the initial backoff and doubles
the backoff of every retry until reaching the
maximum backoff";
leaf initial-backoff {
type uint32;
units "seconds";
default "30";
description
"Initial backoff time";
}
leaf maximum-backoff {
type uint32;
units "seconds";
default "720";
description
"Maximum backoff time";
}
}
}
}
}
}
container bmp-data {
description
"Configuration of BMP data";
leaf initiation-message {
type string;
description
"User defined message to append to the
initiation message";
reference
"RFC7854: BGP Monitoring Protocol,
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Section 4.3 and 4.4";
}
container bmp-statistics-report {
presence "Enables the BMP statistics report";
description
"Configuration of the statistics report";
reference
"RFC7854: BGP Monitoring Protocol,
Section 4.8";
leaf statistics-interval {
type uint32;
units "seconds";
mandatory true;
description
"Interval for statistic report message.";
}
}
container bmp-route-monitoring {
description
"Configuration of the data sources for
route-monitoring messages";
uses bmp-route-monitoring-sources;
}
}
container session-stats {
config false;
description
"stats and operational values for the station";
leaf discontinuity-time {
type yang:date-and-time;
mandatory true;
description
"The time on the most recent occasion at which any
one or more of this station's counters suffered a
discontinuity. If no such discontinuities have
occurred since the last re-initialization of the
local management subsystem, then this node contains
the time the local management subsystem
re-initialized itself.";
}
leaf established-session {
type boolean;
description
"Value indicating if the session is currently
established";
}
leaf total-route-monitoring-messages {
type uint64;
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description
"Number of route-monitoring messages sent since last
successful connection";
}
leaf total-statistics-messages {
type uint64;
description
"Number of statistics messages sent since last
successful connection";
}
leaf total-peer-down-messages {
type uint64;
description
"Number of peer-down messages sent since last
successful connection";
}
leaf total-peer-up-messages {
type uint64;
description
"Number of peer-up messages sent since last successful
connection";
}
leaf total-initiation-messages {
type uint64;
description
"Number of initiation messages sent since last
successful connection";
}
leaf total-route-mirroring-messages {
type uint64;
description
"Number of route-mirroring messages sent since last
successful connection";
}
}
container actions {
nacm:default-deny-all;
description
"Container with the actions for the BMP operation";
action session-reset {
description
"Resets the session for a station.";
output {
choice outcome {
description
"Output of the reset operation. Either a success or
failure. For the latter, the reason for the
error is provided.";
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leaf success {
type empty;
description
"Reset successful";
}
leaf failure {
type string;
description
"Reset could not be performed.
Reason is included in the field";
}
}
}
}
}
}
}
}
// Augment the BGP module to include data for network instances
augment "/rt:routing/rt:control-plane-protocols/"
+ "rt:control-plane-protocol/bgp:bgp" {
description
"Augments the BGP container under control-plane-protocol. It
can be used to configure the global BGP instance, but also the
network-instances under the module ietf-network-instance";
container bmp-data {
description
"Container for the configuration of BMP data
related to this BGP instance";
container bmp-monitoring-stations {
presence
"If this container exists, the network instance must be
configured using this";
description
"Container for the configuration of BMP data
related to this BGP instance";
list bmp-monitoring-station {
key "id";
description
"Container for the configuration of BMP data for this
monitoring-station related to this BGP instance";
leaf id {
// TODO: We have not been able to configure
// the schema mount to recognize this yet.
// Until we solve it, we will keep it as
//type leafref {
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// path "/bmp:bmp/bmp:bmp-monitoring-stations/"
// + "bmp:bmp-monitoring-station/bmp:id";
//}
type string;
description
"Identification string for the monitoring station";
}
container bmp-route-monitoring {
presence "The presence of this container means the
Network instance it contains MUST
be configured using it";
description
"Configuration of the data sources for
route-monitoring messages for this network-instance";
leaf enabled {
type boolean;
default "true";
description
"Enables routing monitoring
messages for the network instance.";
}
container adj-rib-in-pre {
description
"Configuration for the adj-rib-in pre-policy";
reference
"RFC7854: BGP Monitoring Protocol (BMP), Section 2.";
uses bmp-ni-peer-ribs-filter;
}
container adj-rib-in-post {
description
"Configuration for the adj-rib-in post-policy";
reference
"RFC7854: BGP Monitoring Protocol (BMP), Section 2.";
uses bmp-ni-peer-ribs-filter;
}
container local-rib {
description
"Configuration for the local-rib";
reference
"RFC9069: Support for Local RIB in the BGP Monitoring
Protocol (BMP), Section 3.";
container address-families {
description
"List of address families to enable for
local-rib.";
list address-family {
key "address-family-id";
description
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"Address family to enable for local-rib";
leaf address-family-id {
type identityref {
base bt:afi-safi-type;
}
description
"Address family id to enable for local-rib";
}
uses bmp-source-configuration;
}
}
}
container adj-rib-out-pre {
description
"Configuration for the adj-rib-out pre-policy";
uses bmp-ni-peer-ribs-filter;
reference
"RFC8671: Support for Adj-RIB-Out in the BGP
Monitoring Protocol (BMP) , Section 3.";
}
container adj-rib-out-post {
description
"Configuration for the adj-rib-out post-policy";
uses bmp-ni-peer-ribs-filter;
reference
"RFC8671: Support for Adj-RIB-Out in the BGP
Monitoring Protocol (BMP) , Section 3.";
}
}
}
}
}
}
}
<CODE ENDS>
4. Security Considerations
The YANG module specified in this document defines a schema for data
that is designed to be accessed via network management protocols such
as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer
is the secure transport layer, and the mandatory-to-implement secure
transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer
is HTTPS, and the mandatory-to-implement secure transport is TLS
[RFC8446]. The NETCONF Access Control Model (NACM) [RFC8341]
provides the means to restrict access for NETCONF or RESTCONF users
to a preconfigured subset of all available NETCONF or RESTCONF
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protocol operations and content.
BGP data is sensible for security considerations. The model
described in this document could be used to send BGP information to
malicious BMP stations. Write access to this model SHOULD therefore
be properly protected.
The session-reset action can demand considerable amount of resources
from network elements. It SHOULD thus be protected from illegal
access.
5. IANA Considerations
5.1. The IETF XML Registry
This document registers a URIs in the IETF XML registry [RFC3688].
Following the format in [RFC3688], the following registrations are
requested:
URI: urn:ietf:params:xml:ns:yang:ietf-bmp
Registrant Contact: The IESG.
XML: N/A, the requested URI is an XML namespace.
5.2. The YANG Module Name Registration
This document registers the following YANG module in the " YANG
Module Names" registry registry [RFC6020]:
Name: ietf-bmp
Namespace: urn:ietf:params:xml:ns:yang:ietf-bmp
Prefix: bmp
Reference: [This RFC-to-be]
6. Open Issues
The security considerations section will have to be aligned with
https://trac.ietf.org/trac/ops/wiki/yang-security-guidelines
7. Normative References
[I-D.ietf-idr-bgp-model]
Jethanandani, M., Patel, K., Hares, S., and J. Haas, "YANG
Model for Border Gateway Protocol (BGP-4)", Work in
Progress, Internet-Draft, draft-ietf-idr-bgp-model-17, 5
July 2023, <https://datatracker.ietf.org/doc/html/draft-
ietf-idr-bgp-model-17>.
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[I-D.ietf-netconf-tcp-client-server]
Watsen, K. and M. Scharf, "YANG Groupings for TCP Clients
and TCP Servers", Work in Progress, Internet-Draft, draft-
ietf-netconf-tcp-client-server-26, 4 April 2024,
<https://datatracker.ietf.org/doc/html/draft-ietf-netconf-
tcp-client-server-26>.
[RFC1191] Mogul, J. and S. Deering, "Path MTU discovery", RFC 1191,
DOI 10.17487/RFC1191, November 1990,
<https://www.rfc-editor.org/info/rfc1191>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
DOI 10.17487/RFC3688, January 2004,
<https://www.rfc-editor.org/info/rfc3688>.
[RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)", RFC 6020,
DOI 10.17487/RFC6020, October 2010,
<https://www.rfc-editor.org/info/rfc6020>.
[RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
and A. Bierman, Ed., "Network Configuration Protocol
(NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
<https://www.rfc-editor.org/info/rfc6241>.
[RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure
Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
<https://www.rfc-editor.org/info/rfc6242>.
[RFC6991] Schoenwaelder, J., Ed., "Common YANG Data Types",
RFC 6991, DOI 10.17487/RFC6991, July 2013,
<https://www.rfc-editor.org/info/rfc6991>.
[RFC7854] Scudder, J., Ed., Fernando, R., and S. Stuart, "BGP
Monitoring Protocol (BMP)", RFC 7854,
DOI 10.17487/RFC7854, June 2016,
<https://www.rfc-editor.org/info/rfc7854>.
[RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF
Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017,
<https://www.rfc-editor.org/info/rfc8040>.
Cardona, et al. Expires 26 December 2024 [Page 65]
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[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>.
[RFC8177] Lindem, A., Ed., Qu, Y., Yeung, D., Chen, I., and J.
Zhang, "YANG Data Model for Key Chains", RFC 8177,
DOI 10.17487/RFC8177, June 2017,
<https://www.rfc-editor.org/info/rfc8177>.
[RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration
Access Control Model", STD 91, RFC 8341,
DOI 10.17487/RFC8341, March 2018,
<https://www.rfc-editor.org/info/rfc8341>.
[RFC8349] Lhotka, L., Lindem, A., and Y. Qu, "A YANG Data Model for
Routing Management (NMDA Version)", RFC 8349,
DOI 10.17487/RFC8349, March 2018,
<https://www.rfc-editor.org/info/rfc8349>.
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol
Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018,
<https://www.rfc-editor.org/info/rfc8446>.
[RFC8529] Berger, L., Hopps, C., Lindem, A., Bogdanovic, D., and X.
Liu, "YANG Data Model for Network Instances", RFC 8529,
DOI 10.17487/RFC8529, March 2019,
<https://www.rfc-editor.org/info/rfc8529>.
[RFC8671] Evens, T., Bayraktar, S., Lucente, P., Mi, P., and S.
Zhuang, "Support for Adj-RIB-Out in the BGP Monitoring
Protocol (BMP)", RFC 8671, DOI 10.17487/RFC8671, November
2019, <https://www.rfc-editor.org/info/rfc8671>.
[RFC9069] Evens, T., Bayraktar, S., Bhardwaj, M., and P. Lucente,
"Support for Local RIB in the BGP Monitoring Protocol
(BMP)", RFC 9069, DOI 10.17487/RFC9069, February 2022,
<https://www.rfc-editor.org/info/rfc9069>.
[RFC9293] Eddy, W., Ed., "Transmission Control Protocol (TCP)",
STD 7, RFC 9293, DOI 10.17487/RFC9293, August 2022,
<https://www.rfc-editor.org/info/rfc9293>.
Appendix A. Examples
This sections shows some examples of BMP configuration using the
model.
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A.1. Example one
In this example, the device connects to a monitoring station using an
active connection. The devices sends route monitoring messages for
the global instance, the adj-rib-out-pre RIB, the IPv4/IPv6 address
family, and external peers.
=============== NOTE: '\' line wrapping per RFC 8792 ================
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>1</id>
<connection>
<active>
<station-address>192.0.2.1</station-address>
<station-port>57992</station-port>
<local-address>192.0.2.2</local-address>
</active>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-inst\
ance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<peer-types>
<peer-type>
<peer-type-id>external</peer-type-id>
</peer-type>
</peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params:xml\
:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
<peer-types>
<peer-type>
<peer-type-id>external</peer-type-id>
</peer-type>
</peer-types>
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</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 15
A.2. Example two
In the next example, the device connects to a monitoring station
using a passive connection, over the network-instance monitoring.
The configuration of route monitoring messages is more complex than
in the previous example. It shows how to combine the configuration
of general identities of network instances and peers (e.g. bmp-ni-
types-all-ni for NI, external for peers), and individual
configurations to support a more complex requirement. This is what
the example expects to configure:
* For the global network instance, the device sends updates for adj-
rib-in-pre, address families IPv4 and IPv6. It sends updates for
all external peers except peer 128.66.1.1, which is disabled.
* Network instance monitoring is disabled for route monitoring
messages.
* For the rest of network instances, we are enabling messages from
adj-rib-in-pre, address families IPv4/IPv6, and for all peers.
=============== NOTE: '\' line wrapping per RFC 8792 ================
<routing xmlns="urn:ietf:params:xml:ns:yang:ietf-routing">
<control-plane-protocols>
<control-plane-protocol>
<type xmlns:bgp="urn:ietf:params:xml:ns:yang:ietf-bgp">bgp:bgp\
</type>
<name>BGP</name>
<bgp xmlns="urn:ietf:params:xml:ns:yang:ietf-bgp">
<global>
<as>64496</as>
<identifier>192.0.2.1</identifier>
</global>
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<neighbors>
<neighbor>
<!-- Neighbor-specific configuration parameters -->
<remote-address>128.66.1.1</remote-address>
<peer-as>64497</peer-as>
</neighbor>
<!-- Additional neighbors if needed -->
</neighbors>
<!-- Additional BGP configuration elements -->
<bmp-data xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>2</id>
<bmp-route-monitoring>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params\
:xml:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<peers>
<peer>
<peer-id>128.66.1.1</peer-id>
<enabled>false</enabled>
</peer>
</peers>
<peer-types>
<peer-type>
<peer-type-id>external</peer-type-id>
</peer-type>
</peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params\
:xml:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
<peers>
<peer>
<peer-id>128.66.1.1</peer-id>
<enabled>false</enabled>
</peer>
</peers>
<peer-types>
<peer-type>
<peer-type-id>external</peer-type-id>
</peer-type>
</peer-types>
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</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
</bmp-route-monitoring>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp-data>
</bgp>
</control-plane-protocol>
</control-plane-protocols>
</routing>
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<bmp-monitoring-stations>
<bmp-monitoring-station>
<id>2</id>
<connection>
<passive>
<network-instance>monitoring</network-instance>
<station-address>192.0.2.1</station-address>
<local-address>192.0.2.2</local-address>
<local-port>57993</local-port>
</passive>
</connection>
<bmp-data>
<bmp-route-monitoring>
<network-instance-configuration>
<network-instance>
<network-instance-id>bmp-ni-types-all-ni</network-\
instance-id>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params\
:xml:ns:yang:ietf-bgp-types">bt:ipv6-unicast</address-family-id>
<peers-configurations>
<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers</\
peer-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
<address-family>
<address-family-id xmlns:bt="urn:ietf:params\
:xml:ns:yang:ietf-bgp-types">bt:ipv4-unicast</address-family-id>
<peers-configurations>
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<bmp-peer-types>
<bmp-peer-type>
<peer-types-bmp>bmp-peer-types-all-peers</\
peer-types-bmp>
</bmp-peer-type>
</bmp-peer-types>
</peers-configurations>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
<network-instance>
<network-instance-id>monitoring</network-instance-id>
<enabled>false</enabled>
</network-instance>
</network-instance-configuration>
</bmp-route-monitoring>
</bmp-data>
</bmp-monitoring-station>
</bmp-monitoring-stations>
</bmp>
Figure 16
Acknowledgements
The authors would like to thank Yimin Shen, Jeff Haas, Pierre Vander
Vorst, and Tom Petch for their review and feedback.
Authors' Addresses
Camilo Cardona
NTT
164-168, Carrer de Numancia
08029 Barcelona
Spain
Email: camilo@ntt.net
Paolo Lucente
NTT
Siriusdreef 70-72
2132 Hoofddorp
Netherlands
Email: paolo@ntt.net
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Thomas Graf
Swisscom
Binzring 17
CH- Zurich 8045
Switzerland
Email: thomas.graf@swisscom.com
Benoit Claise
Huawei
Email: benoit.claise@huawei.com
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