BESS Working Group P. Brissette
A.Sajassi
Internet Draft Cisco System
Intended Status: Proposed Standard H. Shah
Expires: September 14, 2017 Ciena Corporation
Z. Li
Huawei Technologies
I. Chen
Jabil
K. Tiruveedhula
Juniper Networks
I. Hussain
Infinera Corporation
J. Rabadan
Nokia
March 13, 2017
Yang Data Model for EVPN
draft-ietf-bess-evpn-yang-02
Abstract
This document describes a YANG data model for Ethernet VPN services.
The model is agnostic of the underlay. It apply to MPLS as well as to
VxLAN encapsulation. The model is also agnostic of the services
including E-LAN, E-LINE and E-TREE services. Any "add-on" features
such as EVPN IRB, EVPN overlay, etc. are for future investigation.
This document mainly focuses on EVPN and Ethernet-Segment instance
framework.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as
Internet-Drafts.
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."
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The list of current Internet-Drafts can be accessed at
http://www.ietf.org/1id-abstracts.html
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
Copyright and License Notice
Copyright (c) 2017 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
(http://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 Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Convention
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Specification of Requirements . . . . . . . . . . . . . . . . . 5
3. EVPN YANG Model . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Ethernet-Segment Model . . . . . . . . . . . . . . . . . . . 6
3.3 EVPN Model . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Ethernet Segment Yang Module . . . . . . . . . . . . . . . . 7
4.2 EVPN Yang Module . . . . . . . . . . . . . . . . . . . . . . 9
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 11
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 11
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 11
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.1. Normative References . . . . . . . . . . . . . . . . . . . 12
8.2. Informative References . . . . . . . . . . . . . . . . . . 12
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12
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1. Introduction
The Network Configuration Protocol (NETCONF) [RFC6241] is a network
management protocol that defines mechanisms to manage network
devices. YANG [RFC6020] is a modular language that represents data
structures in an XML or JSON tree format, and is used as a data
modeling language for the NETCONF.
This document introduces a YANG data model for Ethernet VPN services
(EVPN) [RFC7432], Provider Backbone Bridging Combined with Ethernet
VPN (PBB-EVPN) [RFC7623] as well as other WG draft such as EVPN-VPWS,
etc. The EVPN services runs over MPLS and VxLAN underlay.
The Yang data model in this document defines Ethernet VPN based
services. The model will leverage the definitions used in other IETF
Yang draft such as L2VPN Yang.
The goal is to propose a data object model consisting of building
blocks that can be assembled in different order to realize different
EVPN-based services. The definition work is undertaken initially by a
smaller working group with members representing various vendors and
service providers. The EVPN basic framework consist of two modules:
EVPN and Ethernet-Segment. These models are completely orthogonal.
They usually work in pair but user can definitely use one or the
other for its own need.
The data model is defined for following constructs that are used for
managing the services:
o Configuration
o Operational State
o Executables (Actions)
o Notifications
The document is organized to first define the data model for the
configuration, operational state, actions and notifications of EVPN
and Ethernet-Segment.
The EVPN data object model defined in this document uses the instance
centric approach whereby EVPN service attributes are specified for a
given EVPN instance.
The Ethernet-Segment data object model defined in this document refer
to a specific interface. That interface can be a physical interface,
a bundle interface or virtual interface. The latter includes
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pseudowires. The purpose of creating a separate module is due to the
fact that it can be used without having the need to have EVPN
configured as layer 2 service. For example, an access node can be
dual-homed to two service nodes servicing a VPLS core. The access
connectivity can be represented by an Ethernet-Segment where EVPN BGP
DF election is performed over both service nodes. The core remains
VPLS where no EVPN instance is required.
2. Specification of Requirements
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL"
in this document are to be interpreted as described in [RFC2119].
3. EVPN YANG Model
3.1. Overview
Two top level module, Ethernet-Segment and EVPN, are defined. The
Ethernet-Segment contains a list of interface to which any Ethernet-
Segment attributes are configured/applied.
The EVPN module has 2 main containers: common and instance. The
first one has common attributes to all VPNs where as the latter has
attributes specific to an EVI. This document state the scope of the
EVPN object models definition. The following documents are within the
scope. This is not an exhaustive list but a representation of
documents that are covered for this work:
o Requirements for EVPN: RFC 7209
o EVPN: RFC 7432
o PBB-EVPN: RFC 7623
The integration with L2VPN instance Yang model is being done as part
of the L2VPN Yang model.
Following documents will be covered at that time:
o VPWS support in EVPN:
draft-ietf-bess-evpn-vpws
o E-TREE Support in EVPN & PBB-EVPN:
draft-ietf-bess-evpn-etree
o (PBB-)EVPN Seamless Integration with (PBB-)VPLS:
draft-ietf-bess-evpn-vpls-seamless-integ
o EVPN Virtual Ethernet Segment:
draft-sajassi-bess-evpn-virtual-eth-segment
The VxLAN aspect and the work related to Layer 3 is also for future
definition. Following documents will be covered at that time:
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o IP Prefix Advertisement in EVPN:
draft-ietf-bess-evpn-prefix-advertisement
o VXLAN DCI Using EVPN:
draft-boutros-l2vpn-vxlan-evpn
o A Network Virtualization Overlay Solution using EVPN:
draft-ietf-bess-evpn-overlay-
o Interconnect Solution for EVPN Overlay networks:
draft-ietf-bess-dci-evpn-overlay
o Integrated Routing and Bridging in EVPN:
draft-ietf-bess-evpn-inter-subnet-forwarding
3.2 Ethernet-Segment Model
The Ethernet-Segment data model has a list of ES where each refer to
an interface. All attributes are optional due to auto-sensing default
mode where all values are auto-derive from the network connectivity.
module: ietf-ethernet-segment
+--rw ethernet-segments
| +--rw ethernet-segment* [name]
| +--rw name string
| +--rw (ac-or-pw)?
| | +--:(ac)
| | | +--rw ac? string
| | +--:(pw)
| | +--rw pw? string
| +--rw ethernet-segment-identifier? uint32
| +--rw (active-mode)
| | +--:(single-active)
| | | +--rw single-active-mode? empty
| | +--:(all-active)
| | +--rw all-active-mode? empty
| +--rw pbb-parameters {ethernet-segment-pbb-params}?
| | +--rw backbone-src-mac? yang:mac-address
| +--rw bgp-parameters
| | +--rw common
| | +--rw rd-rt* [route-distinguisher]
| | {ethernet-segment-bgp-params}?
| | +--rw route-distinguisher
| | rt-types:route-distinguisher
| | +--rw vpn-target* [route-target]
| | +--rw route-target
| | rt-types:route-target
| | +--rw route-target-type
| | rt-types:route-target-type
| +--rw df-election
| | +--rw (df-election-method)?
| | | +--:(highest-random-weight)
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| | | +--rw hrw? boolean
| | +--rw election-wait-time? uint32
| +--rw ead-evi-route? boolean
+--ro ethernet-segments-state
+--ro ethernet-segment-state* [name]
+--ro name string
+--ro service-type? string
+--ro status? status-type
+--ro (ac-or-pw)?
| +--:(ac)
| | +--ro ac? string
| +--:(pw)
| +--ro pw? string
+--ro interface-status? status-type
+--ro ethernet-segment-identifier? uint32
+--ro active-mode? string
+--ro pbb-parameters {ethernet-segment-pbb-params}?
| +--ro backbone-src-mac? yang:mac-address
+--ro bgp-parameters
| +--ro common
| +--ro rd-rt* [route-distinguisher]
| {ethernet-segment-bgp-params}?
| +--ro route-distinguisher
| rt-types:route-distinguisher
| +--ro vpn-target* [route-target]
| +--ro route-target
| rt-types:route-target
| +--ro route-target-type
| rt-types:route-target-type
+--ro df-election
| +--ro hrw-enabled? boolean
| +--ro election-wait-time? uint32
+--ro ead-evi-route-enabled? boolean
+--ro esi-label? string
+--ro member*
| +--ro ip-address? inet:ip-address
+--ro df*
+--ro service-identifier? uint32
+--ro vlan? uint32
+--ro ip-address? inet:ip-address
3.3 EVPN Model
The evpn-instances container contains a list of evpn-instance.
Each entry of the evpn-instance represents a different Ethernet VPN
and it is represented by a EVI. Again, mainly all attributes are
optional for the same reason as for the Ethernet-Segment module.
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module: ietf-evpn
+--rw evpn
| +--rw common
| | +--rw (replication-type)?
| | +--:(ingress-replication)
| | | +--rw ingress-replication? boolean
| | +--:(p2mp-replication)
| | +--rw p2mp-replication? boolean
| +--rw evpn-instances
| +--rw evpn-instance* [name]
| +--rw name string
| +--rw evi? uint32
| +--rw pbb-parameters {evpn-pbb-params}?
| | +--rw source-bmac? yang:hex-string
| +--rw bgp-parameters
| | +--rw common
| | +--rw rd-rt* [route-distinguisher]
| | {evpn-bgp-params}?
| | +--rw route-distinguisher
| | rt-types:route-distinguisher
| | +--rw vpn-target* [route-target]
| | +--rw route-target
| | rt-types:route-target
| | +--rw route-target-type
| | rt-types:route-target-type
| +--rw arp-proxy? boolean
| +--rw arp-suppression? boolean
| +--rw nd-proxy? boolean
| +--rw nd-suppression? boolean
| +--rw underlay-multicast? boolean
| +--rw flood-unknown-unicast-supression? boolean
+--rw evpn-state
+--ro evpn-instances-state
+--ro evpn-instance*
+--ro name? string
+--ro evi? uint32
+--ro pbb-parameters {evpn-pbb-params}?
| +--ro source-bmac? yang:hex-string
+--ro bgp-parameters
| +--ro common
| +--ro rd-rt* [route-distinguisher]
| {evpn-bgp-params}?
| +--ro route-distinguisher
| rt-types:route-distinguisher
| +--ro vpn-target* [route-target]
| +--ro route-target rt-types:route-target
| +--ro route-target-type
| rt-types:route-target-type
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+--ro advertise-mac-suppression-enabled? boolean
+--ro arp-proxy-enabled? boolean
+--ro arp-suppression-enabled? boolean
+--ro nd-proxy-enabled? boolean
+--ro nd-suppression-enabled? boolean
+--ro underlay-multicast-enabled? boolean
+--ro flood-unknown-unicast-suppression-enabled? boolean
+--ro routes
| +--ro ethernet-auto-discovery-route*
| | +--ro rd-rt* [route-distinguisher]
| | | +--ro route-distinguisher
| | | rt-types:route-distinguisher
| | | +--ro vpn-target* [route-target]
| | | +--ro route-target rt-types:route-target
| | +--ro ethernet-segment-identifier? uint32
| | +--ro ethernet-tag? uint32
| | +--ro path*
| | +--ro next-hop? inet:ip-address
| | +--ro label? rt-types:mpls-label
| | +--ro detail
| | +--ro attributes
| | | +--ro extended-community* string
| | +--ro bestpath? empty
| +--ro mac-ip-advertisement-route*
| | +--ro rd-rt* [route-distinguisher]
| | | +--ro route-distinguisher
| | | rt-types:route-distinguisher
| | | +--ro vpn-target* [route-target]
| | | +--ro route-target rt-types:route-target
| | +--ro ethernet-segment-identifier? uint32
| | +--ro ethernet-tag? uint32
| | +--ro mac-address? yang:hex-string
| | +--ro mac-address-length? uint8
| | +--ro ip-prefix? inet:ip-prefix
| | +--ro path*
| | +--ro next-hop? inet:ip-address
| | +--ro label? rt-types:mpls-label
| | +--ro label2? rt-types:mpls-label
| | +--ro detail
| | +--ro attributes
| | | +--ro extended-community* string
| | +--ro bestpath? empty
| +--ro inclusive-multicast-ethernet-tag-route*
| | +--ro rd-rt* [route-distinguisher]
| | | +--ro route-distinguisher
| | | rt-types:route-distinguisher
| | | +--ro vpn-target* [route-target]
| | | +--ro route-target rt-types:route-target
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| | +--ro ethernet-segment-identifier? uint32
| | +--ro originator-ip-prefix? inet:ip-prefix
| | +--ro path*
| | +--ro next-hop? inet:ip-address
| | +--ro label? rt-types:mpls-label
| | +--ro detail
| | +--ro attributes
| | | +--ro extended-community* string
| | +--ro bestpath? empty
| +--ro ethernet-segment-route*
| | +--ro rd-rt* [route-distinguisher]
| | | +--ro route-distinguisher
| | | rt-types:route-distinguisher
| | | +--ro vpn-target* [route-target]
| | | +--ro route-target rt-types:route-target
| | +--ro ethernet-segment-identifier? uint32
| | +--ro originator-ip-prefix? inet:ip-prefix
| | +--ro path*
| | +--ro next-hop? inet:ip-address
| | +--ro detail
| | +--ro attributes
| | | +--ro extended-community* string
| | +--ro bestpath? empty
| +--ro ip-prefix-route*
| +--ro rd-rt* [route-distinguisher]
| | +--ro route-distinguisher
| | rt-types:route-distinguisher
| | +--ro vpn-target* [route-target]
| | +--ro route-target rt-types:route-target
| +--ro ethernet-segment-identifier? uint32
| +--ro ip-prefix? inet:ip-prefix
| +--ro path*
| +--ro next-hop? inet:ip-address
| +--ro label? rt-types:mpls-label
| +--ro detail
| +--ro attributes
| | +--ro extended-community* string
| +--ro bestpath? empty
+--ro statistics
+--ro tx-count? uint32
+--ro rx-count? uint32
+--ro detail
+--ro broadcast-tx-count? uint32
+--ro broadcast-rx-count? uint32
+--ro multicast-tx-count? uint32
+--ro multicast-rx-count? uint32
+--ro unicast-tx-count? uint32
+--ro unicast-rx-count? uint32
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augment /l2vpn:l2vpn/l2vpn:l2vpn-instances/l2vpn:l2vpn-instance:
+--rw evpn-instance? evpn-instance-ref
augment /l2vpn:l2vpn-state/
l2vpn:l2vpn-instances-state/l2vpn:l2vpn-instance:
+--ro evpn-instance? string
4. YANG Module
The EVPN configuration container is logically divided into
following high level config areas:
4.1 Ethernet Segment Yang Module
<CODE BEGINS> file "ietf-ethernet-segment@2017-03-13.yang"
module ietf-ethernet-segment {
namespace "urn:ietf:params:xml:ns:yang:ietf-ethernet-segment";
prefix "es";
import ietf-yang-types {
prefix "yang";
}
import ietf-inet-types {
prefix "inet";
}
import ietf-routing-types {
prefix "rt-types";
}
organization "ietf";
contact "ietf";
description "ethernet segment";
revision "2017-03-13" {
description " - Updated to use BGP parameters from " +
" ietf-routing-types.yang instead of from " +
" ietf-evpn.yang " +
"";
reference "";
}
revision "2016-07-08" {
description " - Added the configuration option to enable or " +
" disable per-EVI/EAD route " +
" - Added PBB parameter backbone-src-mac " +
" - Added operational state branch, initially " +
" to match the configuration branch" +
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"";
reference "";
}
revision "2016-06-23" {
description "WG document adoption";
reference "";
}
revision "2015-10-15" {
description "Initial revision";
reference "";
}
/* Features */
feature ethernet-segment-bgp-params {
description "Ethernet segment's BGP parameters";
}
feature ethernet-segment-pbb-params {
description "Ethernet segment's PBB parameters";
}
/* Typedefs */
typedef status-type {
type enumeration {
enum up {
description "Status is up";
}
enum down {
description "Status is down";
}
}
description "status type";
}
/* EVPN Ethernet Segment YANG Model */
container ethernet-segments {
description "ethernet-segment";
list ethernet-segment {
key "name";
leaf name {
type string;
description "Name of the ethernet segment";
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}
choice ac-or-pw {
description "ac-or-pw";
case ac {
leaf ac {
type string;
description "Eventual reference to standard " +
"attachment circuit definition";
}
}
case pw {
leaf pw {
type string;
description "Eventual reference to standard " +
"pseudowire definition";
}
}
}
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
choice active-mode {
mandatory true;
description "Choice of active mode";
case single-active {
leaf single-active-mode {
type empty;
description "single-active-mode";
}
}
case all-active {
leaf all-active-mode {
type empty;
description "all-active-mode";
}
}
}
container pbb-parameters {
if-feature ethernet-segment-pbb-params;
description "PBB configuration";
leaf backbone-src-mac {
type yang:mac-address;
description "backbone-src-mac, only if this is a PBB";
}
}
container bgp-parameters {
description "BGP parameters";
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container common {
description "BGP parameters common to all pseudowires";
list rd-rt {
if-feature ethernet-segment-bgp-params;
key "route-distinguisher";
leaf route-distinguisher {
type rt-types:route-distinguisher;
description "Route distinguisher";
}
uses rt-types:vpn-route-targets;
description "A list of route distinguishers and " +
"corresponding VPN route targets";
}
}
}
container df-election {
description "df-election";
choice df-election-method {
description "Choice of df election method";
case highest-random-weight {
leaf hrw {
type boolean;
description "Enable (TRUE) or disable (FALSE) " +
"highest random weight";
}
}
}
leaf election-wait-time {
type uint32;
description "election-wait-time";
}
}
leaf ead-evi-route {
type boolean;
default false;
description "Enable (true) or disable (false) ead-evi-route";
}
description "An ethernet segment";
}
}
container ethernet-segments-state {
config false;
description "Ethernet segmet operational state";
list ethernet-segment-state {
key "name";
leaf name {
type string;
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description "Name of the ethernet segment";
}
leaf service-type {
type string;
description "service-type";
}
leaf status {
type status-type;
description "Ethernet segment status";
}
choice ac-or-pw {
description "ac-or-pw";
case ac {
leaf ac {
type string;
description "Name of attachment circuit";
}
}
case pw {
leaf pw {
type string;
description "Name of pseudowire";
}
}
}
leaf interface-status {
type status-type;
description "interface status";
}
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
leaf active-mode {
type string;
description "Single-active-mode/all-active-mode";
}
container pbb-parameters {
if-feature "ethernet-segment-pbb-params";
description "PBB configuration";
leaf backbone-src-mac {
type yang:mac-address;
description "backbone-src-mac, only if this is a PBB";
}
}
container bgp-parameters {
description "BGP parameters";
container common {
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description "BGP parameters common to all pseudowires";
list rd-rt {
if-feature ethernet-segment-bgp-params;
key "route-distinguisher";
leaf route-distinguisher {
type rt-types:route-distinguisher;
description "Route distinguisher";
}
uses rt-types:vpn-route-targets;
description "A list of route distinghishers and " +
"corresponding route targets";
}
}
}
container df-election {
description "df-election";
leaf hrw-enabled {
type boolean;
description "hrw-enabled is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf election-wait-time {
type uint32;
description "election-wait-time";
}
}
leaf ead-evi-route-enabled {
type boolean;
description "ead-evi-route is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf esi-label {
type string;
description "esi-label";
}
list member {
leaf ip-address {
type inet:ip-address;
description "ip-address";
}
description "member of the ethernet segment";
}
list df {
leaf service-identifier {
type uint32;
description "service-identifier";
}
leaf vlan {
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type uint32;
description "vlan";
}
leaf ip-address {
type inet:ip-address;
description "ip-address";
}
description "df of an evpn instance's vlan";
}
description "An ethernet segment";
}
}
}
<CODE ENDS>
4.2 EVPN Yang Module
<CODE BEGINS> file "ietf-evpn@2017-03-13.yang"
module ietf-evpn {
namespace "urn:ietf:params:xml:ns:yang:ietf-evpn";
prefix "evpn";
import ietf-inet-types {
prefix "inet";
}
import ietf-yang-types {
prefix "yang";
}
import ietf-l2vpn {
prefix "l2vpn";
}
import ietf-routing-types {
prefix "rt-types";
}
organization "ietf";
contact "ietf";
description "evpn";
revision "2017-03-13" {
description " - Added an augment to base L2VPN model to " +
" reference an EVPN instance " +
" - Reused ietf-routing-types.yang " +
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" vpn-route-targets grouping instead of " +
" defining it in this module " +
"";
reference "";
}
revision "2016-07-08" {
description " - Added operational state" +
" - Added a configuration knob to enable/disable " +
" underlay-multicast " +
" - Added a configuration knob to enable/disable " +
" flooding of unknonw unicast " +
" - Added several configuration knobs " +
" to manage ARP and ND" +
"";
reference "";
}
revision "2016-06-23" {
description "WG document adoption";
reference "";
}
revision "2015-10-15" {
description "Initial revision";
reference "";
}
feature evpn-bgp-params {
description "EVPN's BGP parameters";
}
feature evpn-pbb-params {
description "EVPN's PBB parameters";
}
/* Typedefs */
typedef evpn-instance-ref {
type leafref {
path "/evpn/evpn-instances/evpn-instance/name";
}
description "A leafref type to an EVPN instance";
}
/* Groupings */
grouping route-rd-rt-grp {
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description "A grouping for a route's route distinguishers " +
"and route targets";
list rd-rt {
key "route-distinguisher";
leaf route-distinguisher {
type rt-types:route-distinguisher;
description "Route distinguisher";
}
list vpn-target {
key "route-target";
leaf route-target {
type rt-types:route-target;
description "BGP route target";
}
description "A list of route targets";
}
description "A list of route distinguishers and " +
"corresponding VPN route targets";
}
}
grouping next-hop-label-grp {
description "next-hop-label-grp";
leaf next-hop {
type inet:ip-address;
description "next-hop";
}
leaf label {
type rt-types:mpls-label;
description "label";
}
}
grouping next-hop-label2-grp {
description "next-hop-label2-grp";
leaf label2 {
type rt-types:mpls-label;
description "label2";
}
}
grouping path-detail-grp {
description "path-detail-grp";
container detail {
config false;
description "path details";
container attributes {
leaf-list extended-community {
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type string;
description "extended-community";
}
description "attributes";
}
leaf bestpath {
type empty;
description "Indicate this path is the best path";
}
}
}
/* EVPN YANG Model */
container evpn {
description "evpn";
container common {
description "common epn attributes";
choice replication-type {
description "A choice of replication type";
case ingress-replication {
leaf ingress-replication {
type boolean;
description "ingress-replication";
}
}
case p2mp-replication {
leaf p2mp-replication {
type boolean;
description "p2mp-replication";
}
}
}
}
container evpn-instances {
description "evpn-instances";
list evpn-instance {
key "name";
description "An EVPN instance";
leaf name {
type string;
description "Name of EVPN instance";
}
leaf evi {
type uint32;
description "evi";
}
container pbb-parameters {
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if-feature "evpn-pbb-params";
description "PBB parameters";
leaf source-bmac {
type yang:hex-string;
description "source-bmac";
}
}
container bgp-parameters {
description "BGP parameters";
container common {
description "BGP parameters common to all pseudowires";
list rd-rt {
if-feature evpn-bgp-params;
key "route-distinguisher";
leaf route-distinguisher {
type rt-types:route-distinguisher;
description "Route distinguisher";
}
uses rt-types:vpn-route-targets;
description "A list of route distinguishers and " +
"corresponding VPN route targets";
}
}
}
leaf arp-proxy {
type boolean;
default false;
description "Enable (TRUE) or disable (FALSE) ARP proxy";
}
leaf arp-suppression {
type boolean;
default false;
description "Enable (TRUE) or disable (FALSE) " +
"ARP suppression";
}
leaf nd-proxy {
type boolean;
default false;
description "Enable (TRUE) or disable (FALSE) ND proxy";
}
leaf nd-suppression {
type boolean;
default false;
description "Enable (TRUE) or disable (FALSE) " +
"ND suppression";
}
leaf underlay-multicast {
type boolean;
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default false;
description "Enable (TRUE) or disable (FALSE) " +
"underlay multicast";
}
leaf flood-unknown-unicast-supression {
type boolean;
default false;
description "Enable (TRUE) or disable (FALSE) " +
"flood unknown unicast suppression";
}
}
}
}
container evpn-state {
description "EVPN operational state";
container evpn-instances-state {
config false;
description "evpn-instances-state";
list evpn-instance {
description "The state of an EVPN instance";
leaf name {
type string;
description "Name of EVPN instance";
}
leaf evi {
type uint32;
description "evi";
}
container pbb-parameters {
if-feature "evpn-pbb-params";
description "PBB parameters";
leaf source-bmac {
type yang:hex-string;
description "source-bmac";
}
}
container bgp-parameters {
description "BGP parameters";
container common {
description "BGP parameters common to all pseudowires";
list rd-rt {
if-feature evpn-bgp-params;
key "route-distinguisher";
leaf route-distinguisher {
type rt-types:route-distinguisher;
description "Route distinguisher";
}
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uses rt-types:vpn-route-targets;
description "A list of route distinguishers and " +
"corresponding VPN route targets";
}
}
}
leaf advertise-mac-suppression-enabled {
type boolean;
description "advertise-mac-suppression " +
"is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf arp-proxy-enabled {
type boolean;
description "arp-proxy is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf arp-suppression-enabled {
type boolean;
description "arp-suppression is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf nd-proxy-enabled {
type boolean;
description "nd-proxy is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf nd-suppression-enabled {
type boolean;
description "nd-suppression is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf underlay-multicast-enabled {
type boolean;
description "underlay-multicast is enabled (TRUE) " +
"or disabled (FALSE)";
}
leaf flood-unknown-unicast-suppression-enabled {
type boolean;
description "flood-unknown-unicast-suppression is " +
"enabled (TRUE) or disabled (FALSE)";
}
container routes {
description "routes";
list ethernet-auto-discovery-route {
uses route-rd-rt-grp;
leaf ethernet-segment-identifier {
type uint32;
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description "Ethernet segment identifier (esi)";
}
leaf ethernet-tag {
type uint32;
description "An ethernet tag (etag) indentifying a " +
"broadcast domain";
}
list path {
uses next-hop-label-grp;
uses path-detail-grp;
description "path";
}
description "ethernet-auto-discovery-route";
}
list mac-ip-advertisement-route {
uses route-rd-rt-grp;
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
leaf ethernet-tag {
type uint32;
description "An ethernet tag (etag) indentifying a " +
"broadcast domain";
}
leaf mac-address {
type yang:hex-string;
description "Route mac address";
}
leaf mac-address-length {
type uint8 {
range "0..48";
}
description "mac address length";
}
leaf ip-prefix {
type inet:ip-prefix;
description "ip-prefix";
}
list path {
uses next-hop-label-grp;
uses next-hop-label2-grp;
uses path-detail-grp;
description "path";
}
description "mac-ip-advertisement-route";
}
list inclusive-multicast-ethernet-tag-route {
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uses route-rd-rt-grp;
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
leaf originator-ip-prefix {
type inet:ip-prefix;
description "originator-ip-prefix";
}
list path {
uses next-hop-label-grp;
uses path-detail-grp;
description "path";
}
description "inclusive-multicast-ethernet-tag-route";
}
list ethernet-segment-route {
uses route-rd-rt-grp;
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
leaf originator-ip-prefix {
type inet:ip-prefix;
description "originator ip-prefix";
}
list path {
leaf next-hop {
type inet:ip-address;
description "next-hop";
}
uses path-detail-grp;
description "path";
}
description "ethernet-segment-route";
}
list ip-prefix-route {
uses route-rd-rt-grp;
leaf ethernet-segment-identifier {
type uint32;
description "Ethernet segment identifier (esi)";
}
leaf ip-prefix {
type inet:ip-prefix;
description "ip-prefix";
}
list path {
uses next-hop-label-grp;
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uses path-detail-grp;
description "path";
}
description "ip-prefix route";
}
}
container statistics {
description "Statistics";
leaf tx-count {
type uint32;
description "transmission count";
}
leaf rx-count {
type uint32;
description "receive count";
}
container detail {
description "Detailed statistics";
leaf broadcast-tx-count {
type uint32;
description "broadcast transmission count";
}
leaf broadcast-rx-count {
type uint32;
description "broadcast receive count";
}
leaf multicast-tx-count {
type uint32;
description "multicast transmission count";
}
leaf multicast-rx-count {
type uint32;
description "multicast receive count";
}
leaf unicast-tx-count {
type uint32;
description "unicast transmission count";
}
leaf unicast-rx-count {
type uint32;
description "unicast receive count";
}
}
}
}
}
}
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/* augments */
augment "/l2vpn:l2vpn/l2vpn:l2vpn-instances" +
"/l2vpn:l2vpn-instance" {
description "Augment for an L2VPN instance and EVPN association";
leaf evpn-instance {
type evpn-instance-ref;
description "Reference to an EVPN instance";
}
}
augment "/l2vpn:l2vpn-state" {
description "Augment for an L2VPN instance's operational " +
"state of L2VPN and EVPN association";
leaf evpn-instance {
type string;
description "Name of the associated EVPN instance";
}
}
}
<CODE ENDS>
5. Security Considerations
The configuration, state, action and notification data defined in
this document are designed to be accessed via the NETCONF protocol
[RFC6241]. The lowest NETCONF layer is the secure transport layer
and the mandatory-to-implement secure transport is SSH [RFC6242]. The
NETCONF access control model [RFC6536] provides means to restrict
access for particular NETCONF users to a pre-configured subset of all
available NETCONF protocol operations and content.
The security concerns listed above are, however, no different than
faced by other routing protocols. Hence, this draft does not change
any underlying security issues inherent in [I-D.ietf-netmod-routing-
cfg]
6. IANA Considerations
None.
7. Acknowledgments
The authors would like to acknowledge TBD for their useful
comments.
8. References
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8.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
8.2. Informative References
[RFC6241] R.Enns et al., "Network Configuration
Protocol (NETCONF)",
RFC 6241, June 2011
[RFC6020] M. Bjorklund, "YANG - A Data Modeling Language for
the Network Configuration Protocol (NETCONF)",
RFC 6020, October 2010.
[RFC6242] M. Wasserman, "Using the NETCONF Protocol over
Secure Shell (SSH)",
RFC 6242, June 2011.
[RFC6536] A. Bierman et al., "Network Configuration Protocol
(NETCONF) Access Control Model"
RFC 6536, March 2012.
[RFC7432] Sajassi et al., "BGP MPLS-Based Ethernet VPN",
RFC 7432, February 2015.
[RFC7623] Sajassi et al., "Provider Backbone Bridging
Combined with Ethernet VPN (PBB-EVPN)",
RFC 7623, September 2015
Authors' Addresses
Patrice Brissette
Cisco Systems, Inc.
EMail: pbrisset@cisco.com
Ali Sajassi
Cisco Systems, Inc.
EMail: sajassi@cisco.com
Himanshu Shah
Ciena Corporation
EMail: hshah@ciena.com
Zhenbin Li
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Huawei Technologies
EMail: lizhenbin@huawei.com
Helen Chen
Jabil
EMail: Ing-Wher_Chen@jabil.com
Kishore Tiruveedhula
Juniper Networks
EMail: kishoret@juniper.net
Iftekar Hussain
Infinera Corporation
EMail: ihussain@infinera.com
Jorge Rabadan
Nokia
EMail: jorge.rabadan@nokia.com
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