BMP YANG Module
draft-ietf-grow-bmp-yang-01
| Document | Type | Active Internet-Draft (grow WG) | |
|---|---|---|---|
| Authors | Camilo Cardona , Paolo Lucente , Thomas Graf , Benoît Claise | ||
| Last updated | 2023-03-12 | ||
| Replaces | draft-cptb-grow-bmp-yang | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| 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-01
GROW C. Cardona
Internet-Draft P. Lucente
Intended status: Standards Track NTT
Expires: 13 September 2023 T. Graf
Swisscom
B. Claise
Huawei
12 March 2023
BMP YANG Module
draft-ietf-grow-bmp-yang-01
Abstract
This document proposes a YANG module for BMP (BGP Monitoring
Protocol) configuration and monitoring. A complementary RPC triggers
a refresh of the session of a BMP monitoring station.
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 13 September 2023.
Copyright Notice
Copyright (c) 2023 IETF Trust and the persons identified as the
document authors. All rights reserved.
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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.
Table of Contents
1. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Model summary . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Base ietf-bmp YANG module . . . . . . . . . . . . . . . . . . 3
4.1. Tree View . . . . . . . . . . . . . . . . . . . . . . . . 3
4.2. YANG Module . . . . . . . . . . . . . . . . . . . . . . . 7
5. Security Considerations . . . . . . . . . . . . . . . . . . . 23
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 23
6.1. The IETF XML Registry . . . . . . . . . . . . . . . . . . 24
6.2. The YANG Module Name Registration . . . . . . . . . . . . 24
7. Open Issues . . . . . . . . . . . . . . . . . . . . . . . . . 24
8. Normative References . . . . . . . . . . . . . . . . . . . . 24
Appendix A. Examples . . . . . . . . . . . . . . . . . . . . . . 26
A.1. Example one . . . . . . . . . . . . . . . . . . . . . . . 26
A.2. Example two . . . . . . . . . . . . . . . . . . . . . . . 28
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 30
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 30
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].
2. Introduction
This document specifies a YANG module for configuring and monitoring
the BGP Monitoring Protocol (BMP) [RFC7854]. The model provides
parameters for defining sessions to BMP monitoring stations; the
selection of the BGP Routing Information Bases (RIBs) for Route
Monitoring Messages; provides operational metrics and enables
reseting of BMP monitoring sessions.
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3. Model summary
The BMP YANG model provides the methods for managing BMP monitoring
stations. It includes:
* Connectivity parameters, including monitoring station IP
address(es) and destination port(s).
* BMP session parameters, such as defining the BMP initiation
message or the interval for statistics messages.
* BGP data sources for Route Monitoring Messages. The model
requires the explicit configuration of the network instance, RIBs,
and address family to send to each monitoring station over Route
Monitoring Messages. For Adj-RIB-in and Adj-RIB-out, both pre and
post policy, the model also requires to reference the peer. In
those RIBs, the identity "bmp-peer-types-all-peers" can be used if
the operators desire to receive data of all peers.
* Per BMP station status and statistics, such as established status,
number of route-monitoring messages, number of route-mirroring
messages, number of peer-down and peer-up messages, number of
initiation messages.
* BMP session reset RPC action.
4. Base ietf-bmp YANG module
4.1. Tree View
The following tree diagram provides an overview of the ietf-bmp.yang
data model.
=============== NOTE: '\\' line wrapping per RFC 8792 ===============
module: ietf-bmp
+--rw bmp
+--rw monitoring-stations
+--rw monitoring-station* [id]
+--rw id string
+--rw connection
| +--rw (passive-or-active)?
| | +--:(active)
| | | +--rw active
| | | +--rw network-instance? leafref
| | | +--rw station-address inet:ip-address
| | | +--rw station-port inet:port-number
| | | +--rw local-address inet:ip-address
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| | | +--rw local-port? inet:port-number
| | +--:(passive)
| | +--rw passive
| | +--rw network-instance? leafref
| | +--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
| +--rw bmp-statistics-report!
| | +--rw statistics-interval uint32
| +--rw bmp-route-monitoring
| +--rw network-instances
| +--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
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| | +--rw peers
| | +--rw peer* [peer-id]
| | +--rw peer-id union
| | +--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
| | +--rw peer* [peer-id]
| | +--rw peer-id union
| | +--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*
| | [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*
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| | [address-family-id]
| | +--rw address-family-id
| | | identityref
| | +--rw enabled?
| | | boolean
| | +--rw peers
| | +--rw peer* [peer-id]
| | +--rw peer-id union
| | +--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
| +--rw peer* [peer-id]
| +--rw peer-id union
| +--rw enabled? boolean
| +--rw filters
| +--rw policy-filter
| +--rw export-policy* \
\ leafref
| +--rw default-export-pol\
\icy?
| rt-pol:default-p\
\olicy-type
+--rw session-stats
| +--rw 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
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+---x session-reset
+--ro output
+--ro (outcome)?
+--:(success)
| +--ro success? empty
+--:(failure)
+--ro failure? string
4.2. 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-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
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.";
}
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import ietf-network-instance {
prefix "ni";
reference
"RFC 8529: YANG Data Model for Network Instances";
}
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
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
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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 2022-10-18 {
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 multiple selecting peer's
Routing Information Bases (RIB) for configuration.";
}
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
of selecting all network instances.";
}
identity bmp-ni-types-global-ni {
base bmp-ni-types;
description "Selects the global network instance";
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}
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.";
}
// Taken from the bgp yang module
leaf mtu-discovery {
type boolean;
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
"Container for describing how a particular BMP session
is to be secured.";
choice authentication {
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
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"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";
choice passive-or-active {
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";
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leaf network-instance {
type leafref {
path "/ni:network-instances/ni:network-instance/"
+ "ni:name";
}
description
"If present, specifies the network instance
used to reach the monitoring station.";
}
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;
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 {
type leafref {
path "/ni:network-instances/ni:network-instance/"
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+ "ni:name";
}
description
"If present, specifies the network instance
used to reach the monitoring station.";
}
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;
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
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"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.";
}
}
}
}
grouping bmp-peer-ribs-filter {
description
"Leaves for configuring RIBs where
origin/destination peers are defined.";
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.";
// If we knew the network instance,
// we could list the AF directly from the configured
// ones, as we for instance show next for the global one.
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// leaf name {
// type leafref {
// path "/rt:routing/rt:control-plane-protocols/"
// + "rt:control-plane-protocol/bgp:bgp/"
// + "bgp:global/bgp:afi-safis/bgp:afi-safi/bgp:name";
// }
// description
// "Name of the address family";
// }
// However, since is not aware if we are doing global,
// and individual NT or a default, we cannot
// contraint it to this.
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 {
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 union {
// inet:ip-address reflects a neighbor
// but since the model is not aware of
// the ni, it doesn not know from where to get it
// e.g. if we knew were were referencing
// the global instance, we could do:
// type leafref {
// path "/rt:routing/rt:control-plane-protocols/"
// + "rt:control-plane-protocol/bgp:bgp/"
// + "bgp:neighbors/bgp:neighbor/"
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// + "bgp:remote-address";
// }
type inet:ip-address;
type bt:peer-type;
type identityref {
base bmp-peer-types;
}
}
description
"Peers can be identified by a remote-address,
by the bgp type of the peers,
or by an enum value corresponding to groups
of peers. This way an operator can
select, for example, all external peers,
all internal peers, or all peers.";
}
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-instances {
description
"container for lists of network-instances";
list network-instance {
key "network-instance-id";
description
"Network instance to monitory using BMP.";
leaf network-instance-id {
type union {
type leafref {
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path "/ni:network-instances/ni:network-instance/"
+ "ni:name";
}
type identityref {
base bmp-ni-types;
}
}
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
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
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"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.";
}
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 monitoring-stations {
description
"Container for the list of BMP monitoring stations";
list monitoring-station {
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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 {
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";
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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,
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.";
}
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}
container bmp-route-monitoring {
description
"Configuration of the data sources for
route-monitoring messages";
uses bmp-route-monitoring-sources;
}
}
container session-stats {
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;
config false;
description
"Value indicating if the session is currently
established";
}
leaf total-route-monitoring-messages {
type uint64;
config false;
description
"Number of route-monitoring messages sent since last
successful connection";
}
leaf total-statistics-messages {
type uint64;
config false;
description
"Number of statistics messages sent since last
successful connection";
}
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leaf total-peer-down-messages {
type uint64;
config false;
description
"Number of peer-down messages sent since last
successful connection";
}
leaf total-peer-up-messages {
type uint64;
config false;
description
"Number of peer-up messages sent since last successful
connection";
}
leaf total-initiation-messages {
type uint64;
config false;
description
"Number of initiation messages sent since last
successful connection";
}
leaf total-route-mirroring-messages {
type uint64;
config false;
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.";
leaf success {
type empty;
description
"Reset successful";
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}
leaf failure {
type string;
description
"Reset could not be performed.
Reason is included in the field";
}
}
}
}
}
}
}
}
}
<CODE ENDS>
5. 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
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.
6. IANA Considerations
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6.1. 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.
6.2. 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]
7. Open Issues
The security considerations section will have to be aligned with
https://trac.ietf.org/trac/ops/wiki/yang-security-guidelines
8. 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-16, 1
March 2023, <https://datatracker.ietf.org/doc/html/draft-
ietf-idr-bgp-model-16>.
[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-15, 12 December 2022,
<https://datatracker.ietf.org/doc/html/draft-ietf-netconf-
tcp-client-server-15>.
[RFC1191] Mogul, J. and S. Deering, "Path MTU discovery", RFC 1191,
DOI 10.17487/RFC1191, November 1990,
<https://www.rfc-editor.org/info/rfc1191>.
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[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>.
[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>.
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[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>.
Appendix A. Examples
This sections shows some examples of BMP configuration using the
model.
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">
<monitoring-stations>
<monitoring-station>
<id>1</id>
<connection>
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<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-instances>
<network-instance>
<network-instance-id>
bmp-ni-types-global-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>
<peer>
<peer-id>external</peer-id>
</peer>
</peers>
</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>
<peer>
<peer-id>external</peer-id>
</peer>
</peers>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
</network-instances>
</bmp-route-monitoring>
</bmp-data>
</monitoring-station>
</monitoring-stations>
</bmp>
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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 ================
<bmp xmlns="urn:ietf:params:xml:ns:yang:ietf-bmp">
<monitoring-stations>
<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-instances>
<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-typ\
es">
bt:ipv6-unicast</address-family-id>
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<peers>
<peer>
<peer-id>bmp-peer-types-all-peers</peer-id>
</peer>
</peers>
</address-family>
<address-family>
<address-family-id
xmlns:bt="urn:ietf:params:xml:ns:yang:ietf-bgp-typ\
es">
bt:ipv4-unicast</address-family-id>
<peers>
<peer>
<peer-id>bmp-peer-types-all-peers</peer-id>
</peer>
</peers>
</address-family>
</address-families>
</adj-rib-in-pre>
</network-instance>
<network-instance>
<network-instance-id>
bmp-ni-types-global-ni</network-instance-i\
d>
<adj-rib-in-pre>
<address-families>
<address-family>
<address-family-id
xmlns:bt="urn:ietf:params:xml:ns:yang:ietf-bgp-type\
s">
bt:ipv6-unicast</address-family-id>
<peers>
<peer>
<peer-id>128.66.1.1</peer-id>
<enabled>false</enabled>
</peer>
<peer>
<peer-id>external</peer-id>
</peer>
</peers>
</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>
<peer>
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<peer-id>128.66.1.1</peer-id>
<enabled>false</enabled>
</peer>
<peer>
<peer-id>external</peer-id>
</peer>
</peers>
</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-instances>
</bmp-route-monitoring>
</bmp-data>
</monitoring-station>
</monitoring-stations>
</bmp>
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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