BESS Working Group P. Brissette Ed. Internet Draft Cisco System Intended Status: Proposed Standard H. Shah Ed. Expires: April 25, 2019 Ciena Corporation I. Chen Ed. Jabil I. Hussain Ed. Infinera Corporation K. Tiruveedhula Ed. Juniper Networks J. Rabadan Ed. Nokia October 22, 2018 Yang Data Model for EVPN draft-ietf-bess-evpn-yang-06 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. 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." 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 Brissette, et. al Expires April 25, 2019 [Page 1] Internet-Draft draft-bess-evpn-yang October 22, 2018 Copyright and License Notice Copyright (c) 2018 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 . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Specification of Requirements . . . . . . . . . . . . . . . . . 3 3. EVPN YANG Model . . . . . . . . . . . . . . . . . . . . . . . . 4 3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 4 3.2 Ethernet-Segment Model . . . . . . . . . . . . . . . . . . . 4 3.3 EVPN Model . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Ethernet Segment Yang Module . . . . . . . . . . . . . . . . 9 4.2 EVPN Yang Module . . . . . . . . . . . . . . . . . . . . . . 14 5. Security Considerations . . . . . . . . . . . . . . . . . . . . 25 6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 26 7. References . . . . . . . . . . . . . . . . . . . . . . . . . . 26 7.1. Normative Reference . . . . . . . . . . . . . . . . . . . . 26 7.2. Informative References . . . . . . . . . . . . . . . . . . 26 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 27 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. Brissette, et. al Expires April 25, 2019 [Page 2] Internet-Draft draft-bess-evpn-yang October 22, 2018 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 leverages 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 Notifications The document is organized to first define the data model for the configuration, operational state 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 attachment-circuit and pseudowire. 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 2/3 service. For example, an access node can be dual-homed to two service nodes servicing a VPLS or an IPVPN core. The access connectivity can be represented by an Ethernet-Segment where EVPN BGP DF election is performed over both service nodes. 2. Specification of Requirements The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL Brissette, et. al Expires April 25, 2019 [Page 3] Internet-Draft draft-bess-evpn-yang October 22, 2018 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 two main containers: common and instance. The first one has common attributes to all VPNs where as the latter has attributes specific to an EVI (EVPN instance). 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 Reqs for EVPN:[RFC7209] o EVPN: [RFC7432] o PBB-EVPN: [RFC7623] o EVPN-VPWS: [RFC8214] o EVPN-ETREE: [RFC8317] o EVPN Overlay [RFC8365] 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 (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 o IP Prefix Advertisement in EVPN: draft-ietf-bess-evpn-prefix-advertisement o VXLAN DCI Using EVPN: draft-boutros-l2vpn-vxlan-evpn 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 Brissette, et. al Expires April 25, 2019 [Page 4] Internet-Draft draft-bess-evpn-yang October 22, 2018 +--rw ethernet-segments +--rw ethernet-segment* [name] +--rw name string +--ro service-type? string +--ro status? status-type +--rw (ac-or-pw)? | +--:(ac) | | +--rw ac* if:interface-ref | +--:(pw) | +--rw pw* pw:pseudowire-ref +--ro interface-status? status-type +--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? df-election-method-type | +--rw preference? uint16 | +--rw revertive? boolean | +--rw election-wait-time? uint32 +--rw ead-evi-route? 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 Brissette, et. al Expires April 25, 2019 [Page 5] Internet-Draft draft-bess-evpn-yang October 22, 2018 is represented by a EVI. Again, mainly all attributes are optional for the same reason as for the Ethernet-Segment module. 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 vpws-vlan-aware? 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 Brissette, et. al Expires April 25, 2019 [Page 6] Internet-Draft draft-bess-evpn-yang October 22, 2018 | | +--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 | | +--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 Brissette, et. al Expires April 25, 2019 [Page 7] Internet-Draft draft-bess-evpn-yang October 22, 2018 | | +--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 unknown-unicast-tx-count? uint32 +--ro unknown-unicast-rx-count? uint32 augment /pw:pseudowires/pw:pseudowire/pw:pw-type: +--:(evpn-pw) +--rw evpn-pw +--rw remote-id? uint32 +--rw local-id? uint32 augment /ni:network-instances/ni:network-instance/ni:ni-type/l2vpn:l2vpn: +--rw evpn-instance? evpn-instance-ref augment /ni:network-instances/ni:network-instance/ni:ni-type/l2vpn:l2vpn: +--rw vpls-contstraints notifications: +---n evpn-state-change-notification +--ro evpn-instance? evpn-instance-ref +--ro state? identityref Brissette, et. al Expires April 25, 2019 [Page 8] Internet-Draft draft-bess-evpn-yang October 22, 2018 4. YANG Module The EVPN configuration container is logically divided into following high level configuration areas: 4.1 Ethernet Segment Yang Module file "ietf-ethernet-segment@2018-02-20.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"; } import ietf-interfaces { prefix "if"; } import ietf-pseudowires { prefix "pw"; } organization "ietf"; contact "ietf"; description "ethernet segment"; revision "2018-02-20" { description " - Change the type of attachment circuit to " + " if:interface-ref " + ""; reference ""; } revision "2017-10-21" { description " - Updated ethernet segment's AC/PW members to " + " accommodate more than one AC or more than one " + " PW " + " - Added the new preference based DF election " + Brissette, et. al Expires April 25, 2019 [Page 9] Internet-Draft draft-bess-evpn-yang October 22, 2018 " method " + " - Referenced pseudowires in the new " + " ietf-pseudowires.yang model " + " - Moved model to NMDA style specified in " + " draft-dsdt-nmda-guidelines-01.txt " + ""; reference ""; } revision "2017-03-08" { description " - Updated to use BGP parameters from " + " ietf-routing-types.yang instead of from " + " ietf-evpn.yang " + " - Updated ethernet segment's AC/PW members to " + " accommodate more than one AC or more than one " + " PW " + " - Added the new preference based DF election " + " method " + ""; 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" + ""; 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"; } Brissette, et. al Expires April 25, 2019 [Page 10] Internet-Draft draft-bess-evpn-yang October 22, 2018 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"; } typedef df-election-method-type { type enumeration { enum default { value 0; description "The default DF election method"; } enum highest-random-weight { value 1; description "The highest random weight (HRW) method"; reference "draft-mohanty-bess-evpn-df-election"; } enum preference { value 2; description "The preference based method"; reference "draft-rabadan-bess-evpn-pref-df"; } } description "The DF election method 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"; } leaf service-type { Brissette, et. al Expires April 25, 2019 [Page 11] Internet-Draft draft-bess-evpn-yang October 22, 2018 type string; config false; description "service-type"; } leaf status { type status-type; config false; description "Ethernet segment status"; } choice ac-or-pw { description "ac-or-pw"; case ac { leaf-list ac { type if:interface-ref; description "Name of attachment circuit"; } } case pw { leaf-list pw { type pw:pseudowire-ref; description "Reference to a pseudowire"; } } } leaf interface-status { type status-type; config false; description "interface status"; } 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"; } } Brissette, et. al Expires April 25, 2019 [Page 12] Internet-Draft draft-bess-evpn-yang October 22, 2018 } 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 { 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"; leaf df-election-method { type df-election-method-type; description "The DF election method"; } leaf preference { when "../df-election-method = 'preference'" { description "The preference value is only applicable " + "to the preference based method"; } type uint16; description "The DF preference"; } leaf revertive { when "../df-election-method = 'preference'" { description "The revertive value is only applicable " + "to the preference method"; } type boolean; default true; description "The 'preempt' or 'revertive' behavior"; Brissette, et. al Expires April 25, 2019 [Page 13] Internet-Draft draft-bess-evpn-yang October 22, 2018 } 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"; } leaf esi-label { type string; config false; description "esi-label"; } list member { config false; leaf ip-address { type inet:ip-address; description "ip-address"; } description "member of the ethernet segment"; } list df { config false; leaf service-identifier { type uint32; description "service-identifier"; } leaf vlan { 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"; } } } 4.2 EVPN Yang Module Brissette, et. al Expires April 25, 2019 [Page 14] Internet-Draft draft-bess-evpn-yang October 22, 2018 file "ietf-evpn@2018-02-20.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-routing-types { prefix "rt-types"; } import ietf-network-instance { prefix "ni"; } import ietf-l2vpn { prefix "l2vpn"; } import ietf-pseudowires { prefix "pw"; } organization "ietf"; contact "ietf"; description "evpn"; revision "2018-02-20" { description " - Incorporated ietf-network-instance model" + " on which ietf-l2vpn is now based " + ""; reference ""; } revision "2017-10-21" { description " - Modified the operational state augment " + " - Renamed evpn-instances-state to evpn-instances" + " - Added vpws-vlan-aware to an EVPN instance " + " - Added a new augment to L2VPN to add EPVN " + " - pseudowire for the case of EVPN VPWS " + " - Added state change notification " + ""; Brissette, et. al Expires April 25, 2019 [Page 15] Internet-Draft draft-bess-evpn-yang October 22, 2018 reference ""; } revision "2017-03-13" { description " - Added an augment to base L2VPN model to " + " reference an EVPN instance " + " - Reused ietf-routing-types.yang " + " 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"; } /* Identities */ identity evpn-notification-state { description "The base identity on which EVPN notification " + "states are based"; Brissette, et. al Expires April 25, 2019 [Page 16] Internet-Draft draft-bess-evpn-yang October 22, 2018 } identity MAC-duplication-detected { base "evpn-notification-state"; description "MAC duplication is detected"; } identity mass-withdraw-received { base "evpn-notification-state"; description "Mass withdraw received"; } identity static-MAC-move-detected { base "evpn-notification-state"; description "Static MAC move is detected"; } /* 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 { 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"; } Brissette, et. al Expires April 25, 2019 [Page 17] Internet-Draft draft-bess-evpn-yang October 22, 2018 } 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 { 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 { Brissette, et. al Expires April 25, 2019 [Page 18] Internet-Draft draft-bess-evpn-yang October 22, 2018 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 { 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; Brissette, et. al Expires April 25, 2019 [Page 19] Internet-Draft draft-bess-evpn-yang October 22, 2018 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; 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"; } leaf vpws-vlan-aware { type boolean; default false; description "Enable (TRUE) or disable (FALSE) " + "VPWS VLAN aware"; } container routes { config false; description "routes"; Brissette, et. al Expires April 25, 2019 [Page 20] Internet-Draft draft-bess-evpn-yang October 22, 2018 list ethernet-auto-discovery-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"; } 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"; Brissette, et. al Expires April 25, 2019 [Page 21] Internet-Draft draft-bess-evpn-yang October 22, 2018 } description "mac-ip-advertisement-route"; } list inclusive-multicast-ethernet-tag-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 { 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; Brissette, et. al Expires April 25, 2019 [Page 22] Internet-Draft draft-bess-evpn-yang October 22, 2018 description "ip-prefix"; } list path { uses next-hop-label-grp; uses path-detail-grp; description "path"; } description "ip-prefix route"; } } container statistics { config false; 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 unknown-unicast-tx-count { type uint32; description "unknown unicast transmission count"; } leaf unknown-unicast-rx-count { type uint32; description "unknown-unicast receive count"; } } Brissette, et. al Expires April 25, 2019 [Page 23] Internet-Draft draft-bess-evpn-yang October 22, 2018 } } } } /* augments */ augment "/pw:pseudowires/pw:pseudowire/pw:pw-type" { description "Augment for an L2VPN instance to add EVPN VPWS " + "pseudowire"; case evpn-pw { container evpn-pw { description "EVPN pseudowire"; leaf remote-id { type uint32; description "Remote pseudowire ID"; } leaf local-id { type uint32; description "Local pseudowire ID"; } } } } augment "/ni:network-instances/ni:network-instance/ni:ni-type" + "/l2vpn:l2vpn" { description "Augment for an L2VPN instance and EVPN association"; leaf evpn-instance { type evpn-instance-ref; description "Reference to an EVPN instance"; } } augment "/ni:network-instances/ni:network-instance/ni:ni-type" + "/l2vpn:l2vpn" { when "l2vpn:type = 'l2vpn:vpls-instance-type'" { description "Constraints only for VPLS pseudowires"; } description "Augment for VPLS instance"; container vpls-contstraints { must "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:pw/l2vpn:name]" + " /evpn-pw/remote-id)) and " + "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:pw/l2vpn:name]" + Brissette, et. al Expires April 25, 2019 [Page 24] Internet-Draft draft-bess-evpn-yang October 22, 2018 " /evpn-pw/local-id)) and " + "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:primary-pw/l2vpn:name]" + " /evpn-pw/remote-id)) and " + "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:primary-pw/l2vpn:name]" + " /evpn-pw/local-id)) and " + "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:backup-pw/l2vpn:name]" + " /evpn-pw/remote-id)) and " + "not(boolean(/pw:pseudowires/pw:pseudowire" + " [pw:name = current()/../l2vpn:endpoint" + " /l2vpn:backup-pw/l2vpn:name]" + " /evpn-pw/local-id))" { description "A VPLS pseudowire must not be EVPN PW"; } description "VPLS constraints"; } } /* Notifications */ notification evpn-state-change-notification { description "EVPN state change notification"; leaf evpn-instance { type evpn-instance-ref; description "Related EVPN instance"; } leaf state { type identityref { base evpn-notification-state; } description "State change notification"; } } } 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 Brissette, et. al Expires April 25, 2019 [Page 25] Internet-Draft draft-bess-evpn-yang October 22, 2018 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. References 7.1. Normative Reference [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . 7.2. Informative References [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, . [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, October 2010, . [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011, . [RFC6536] Bierman, A. and M. Bjorklund, "Network Configuration Protocol (NETCONF) Access Control Model", RFC 6536, DOI 10.17487/RFC6536, March 2012, . [RFC7209] Sajassi, A., Aggarwal, R., Uttaro, J., Bitar, N., Henderickx, W., and A. Isaac, "Requirements for Ethernet VPN (EVPN)", RFC 7209, DOI 10.17487/RFC7209, May 2014, . Brissette, et. al Expires April 25, 2019 [Page 26] Internet-Draft draft-bess-evpn-yang October 22, 2018 [RFC7432] Sajassi, A., Ed., Aggarwal, R., Bitar, N., Isaac, A., Uttaro, J., Drake, J., and W. Henderickx, "BGP MPLS-Based Ethernet VPN", RFC 7432, DOI 10.17487/RFC7432, February 2015, . [RFC7623] Sajassi, A., Ed., Salam, S., Bitar, N., Isaac, A., and W. Henderickx, "Provider Backbone Bridging Combined with Ethernet VPN (PBB-EVPN)", RFC 7623, DOI 10.17487/RFC7623, September 2015, . [RFC8214] Boutros, S., Sajassi, A., Salam, S., Drake, J., and J. Rabadan, "Virtual Private Wire Service Support in Ethernet VPN", RFC 8214, DOI 10.17487/RFC8214, August 2017, . Authors' Addresses Patrice Brissette Cisco Systems, Inc. EMail: pbrisset@cisco.com Himanshu Shah Ciena Corporation EMail: hshah@ciena.com Helen Chen Jabil EMail: Ing-Wher_Chen@jabil.com Iftekar Hussain Infinera Corporation EMail: ihussain@infinera.com Kishore Tiruveedhula Juniper Networks EMail: kishoret@juniper.net Jorge Rabadan Nokia EMail: jorge.rabadan@nokia.com Ali Sajassi Cisco Systems, Inc. EMail: sajassi@cisco.com Zhenbin Li Brissette, et. al Expires April 25, 2019 [Page 27] Internet-Draft draft-bess-evpn-yang October 22, 2018 Huawei Technologies EMail: lizhenbin@huawei.com Brissette, et. al Expires April 25, 2019 [Page 28]