Network Working Group A. Liu Internet Draft Ericsson Intended status: Informational Expires: November 27, 2015 June 2, 2015 Ethernet VPN Yang Model draft-liu-l2vpn-evpn-yang-00.txt Abstruct This document defines a YANG model for Ethernet VPN support. The model includes both configuration and operation to support Ethernet VPN service and deployment. 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), 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 This Internet-Draft will expire on November 27, 2015. Copyright Notice Copyright (c) 2015 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 Liu, et al. Expires November 27, 2015 [Page 1] Internet-Draft Ethernet VPN Yang Model November 2015 Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . 1 2. Conventions . . . . . . . . . . . . . . . . . . . . . . . 1 3. Terminology . . . . . . . . . . . . . . . . . . . . . . . 1 4. Data Model . . . . . . . . . . . . . . . . . . . . . . . 2 4.1. Overview . . . . . . . . . . . . . . . . . . . . . . . 2 4.1.1. EVPN Configuration Model . . . . . . . . . . . . . . 2 4.1.2. EVPN Operation Model . . . . . . . . . . . . . . . . 4 5. EVPN YANG Model . . . . . . . . . . . . . . . . . . . . . 4 6. Security Considerations . . . . . . . . . . . . . . . . . 11 7. IANA Considerations . . . . . . . . . . . . . . . . . . . 11 8. Acknowlegements . . . . . . . . . . . . . . . . . . . . . 11 9. References . . . . . . . . . . . . . . . . . . . . . . . 12 Authors' Address . . . . . . . . . . . . . . . . . . . . . . 12 1. Introduction YANG [RFC6020] is a data definition language used to define a conceptual data model that allows NETCONF[RFC6241] to manage the network devices. RFC7432 describes procedures for BGP MPLS based Ethernet VPN. This document defines a YANG data model to configure and manage Ethernet vpn service. 2. Conventions 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. Terminology EVPN: Ethernet VPN ES: Ethernet Segment ESI: Ethernet Segment Identifier ETAG: Ethernet Tag Liu, et al. Expires November 27, 2015 [Page 2] Internet-Draft Ethernet VPN Yang Model November 2015 DF: Designated Forwarder EVI: EVPN Instance 4. Data Model 4.1. Overview The EVPN YANG model includes configuration part and operation part. The configuration model defines the parameters for EVPN provisioning. The operation defines operation data for EVPN service. This model is defined based on the BGP YANG model and bridge YANG model. 4.1.1. EVPN Configuration Model The tree structure of the EVPN configuration model is shown as follows: module: evpn-bgp augment /rt:routing/rt:routing-instance/rt:routing-protocols/rt:routing-protocol: +--rw bgp-router +--rw af-configuration +--rw l2vpn +--rw evpn +--rw bgp +--rw export | +--rw auto-derive-route-target? boolean +--rw import | +--rw auto-derive-route-target? boolean +--rw (replication-type)? | +--:(ingress-replication) | | +--rw ingress-replication? boolean | +--:(p2mp-replication) | | +--rw p2mp-replication? boolean | +--:(mp2mp-replication) | +--rw mp2mp-replication? boolean +--rw (evpn-label-allocation)? | +--:(per-service-instance) | | +--rw evpn-label-per-service-instance? boolean | +--:(per-evi) | +--rw evpn-label-per-evi? boolean +--rw (flood-label-allocation)? | +--:(per-vlan) | | +--rw flood-label-per-vlan? boolean | +--:(per-evi) | +--rw flood-label-per-evi? boolean +--rw (active-mode)? | +--:(single-active-mode) Liu, et al. Expires November 27, 2015 [Page 3] Internet-Draft Ethernet VPN Yang Model November 2015 | | +--rw fast-reroute? boolean | +--:(all-active-mode) | +--rw ecmp? boolean +--rw df-election +--rw (df-election-method)? | +--:(modulus-based) | | +--rw enable-modulus-based? boolean | +--:(highest-random-weight) | +--rw enable-hrw? boolean +--rw df-electioin-wait-time? uint32 module: evpn-bridging augment /rt:bridging/rt:bridging-instance/: +--rw bgp-router +--rw bridging | +--rw bridging-instance* [name] | | +--rw flood-unknown-unicast boolean | | +--rw evpn-instance [name] | | | +--rw service-instance [name] | | | +--rw port augment /if:interfaces/if:interface: +--rw bridge-port | +--rw service-instance [name] | | +--rw l2-bundle [name] | | +--rw esi | | | +--rw type? Enumeration | | | +--rw value string | | +--rw (active-mode)? | | +--:(single-active) | | +--rw single-active-mode boolean | | +--:(all-active) | | +--rw all-active-mode boolean | | +--rw evpn-arp-proxy boolean | | +--rw evpn-nd-proxy boolean Liu, et al. Expires November 27, 2015 [Page 4] Internet-Draft Ethernet VPN Yang Model November 2015 4.1.2. EVPN Operation Model The tree structure of the EVPN operation model is shown as follows: | +--ro bgp-routes | | +--ro list route | | | +--ro af-specific | | | | +--ro l2vpn | | | | | +--ro evpn | | | | | | +--ro ethernet-auto-discovery-route | | | | | | | +--ro esi | | | | | | | +--ro etag | | | | | | +--ro mac-ip-route | | | | | | | +--ro esi | | | | | | | +--ro etag | | | | | | | +--ro mac-addr | | | | | | | +--ro ip-addr | | | | | | +--ro inclusive-multicast-ethernet-tag-route | | | | | | | +--ro etag | | | | | | | +--ro originator-ip-addr | | | | | | +--ro Ethernet-segment-route | | | | | | | +--ro esi | | | | | | | +--ro originator-ip-addr 5. EVPN YANG Model EVPN YANG MODEL module evpn-bgp { namespace "urn:ietf:params:xml:ns:yang:ietf-rip"; prefix evpn-bgp; import ietf-routing { prefix "rt"; } augment "/rt:routing/rt:routing-instance/rt:routing-protocols/" +"rt:routing-protocol" { description "This is a top-level container for the BGP."; container bgp-router { when "./type=bgp"{ description "This is a top-level container for the BGP router."; } container af-configuration { container l2vpn { description "L2vpn specific commands."; Liu, et al. Expires November 27, 2015 [Page 5] Internet-Draft Ethernet VPN Yang Model November 2015 container evpn{ description "BGP specific commands for l2vpn-evpn."; container bgp { description "BGP specific commands for l2vpn-evpn."; container export { list export { key "export-id"; max-elements "1"; leaf auto-derive-route-target { type boolean; description "enable auto derive route target"; } uses export; description "Export configuration."; } list import { key "import-id"; max-elements "1"; container import { leaf auto-derive-route-target { type boolean; description "enable auto derive route target"; } uses import; description "Import configuration."; } choice replication-type { description "Configure replication type."; case ingress-replication { leaf ingress-replication { type boolean; description "Ingress replication."; } } case p2mp-replication { leaf p2mp-replication { type boolean; description "replication using p2pm LSP."; } } case mp2mp-replication { leaf mp2mp-replication { type boolean; description "replication using mp2pm LSP."; } } } Liu, et al. Expires November 27, 2015 [Page 6] Internet-Draft Ethernet VPN Yang Model November 2015 choice evpn-label-allocation { description "Configure evpn label allocation method."; case per-service-instance { leaf evpn-label-per-service-instance { type boolean; description "evpn label is allocated per service instance."; } } case per-evi { leaf evpn-label-per-evi { type boolean; description "evpn label is allocated per evpn instance."; } } } choice flood-label-allocation { description "Configure flood label allocation method."; case per-vlan { leaf flood-label-per-vlan { type boolean; description "flood label is allocated per vlan."; } } case per-evi { leaf flood-label-per-evi { type boolean; description "flood label is allocated per evpn instance."; } } } choice active-mode { description "Enable ecmp when it is all active mode. Enable fast-route when it is single active mode"; case single-active-mode { leaf fast-reroute { type boolean; description "Enable fast reroute when it is single active mode."; } } case all-active-mode { leaf ecmp { type boolean; description "Enable ecmp when it is all active mode."; } } } } Liu, et al. Expires November 27, 2015 [Page 7] Internet-Draft Ethernet VPN Yang Model November 2015 list df-election { container df-election { description "configure DF election method and timer interval"; choice df-election-method { description "Configure df selection method."; case modulus-based { leaf enable-modulus-based { type boolean; description "Enable modulus based df election."; } } case highest-random-weight { leaf enable-hrw { type boolean; description "Enable HRW df selection."; } } } leaf df-electioin-wait-time { type uint32; description "DF election time interval."; } } } } } } } } } module: bridging { prefix evpn-bridging; augment "/rt:bridging/rt:bridging-instance" { description "This is a top-level container for the BRIDGING."; container bridging { list bridging-instance { leaf flood-unknown-unicast { type boolean; description "enable unknown unicast flood". } Leaf evpn-instance { type string; description "configure evpn instance" } } } } Liu, et al. Expires November 27, 2015 [Page 8] Internet-Draft Ethernet VPN Yang Model November 2015 augment "/if:interfaces/if:interface" { when "if:type = 'ianaift:bridge'" { description "Support 802.1Q bridge interface"; } description "Define 802.1Q bridge interface"; container bridge-port { container l2-bundle { leaf name { type string { length "1..39"; } } description "l2 bundle name comprising up to 39 characters". Leaf esi { leaf type { type enumeration { enum manual { description "type 0, manually configured esi". } enum lacp-based { description "type 1, esi is auto-generated based on lacp". } enum mstp-based { description "type 2, esi is auto-generated based on mstp". } enum mac-based { description "type 3, esi is auto-generated based on mac address". } enum router-id-based { description "type 4, esi is auto-generated based on router-id". } enum as-based { description "type 5, esi is auto-generated based on as number". } } description "ESI type". } leaf value { type string { length 9. } description "9-bytes esi value". } } Liu, et al. Expires November 27, 2015 [Page 9] Internet-Draft Ethernet VPN Yang Model November 2015 choice active-mode { description "Configure all active mode or single active mode". case single-active-mode { leaf single-active { type Boolean; description "Configure single active mode". } } case all-active-mode { leaf all-active { type boolean; description "Configure all active mode". } } } leaf evpn-arp-proxy { type boolean; "Enable evpn arp proxy". } leaf evpn-nd-proxy { type boolean; "Enable evpn nd proxy". } } } } } //operational data augment "/rt:routing-state/rt:routing-instance/" +"rt:routing-protocols/rt:routing-protocol" { description "This is a top-level container for the BGP operation."; container bgp-router{ container bgp-routes { description "container of bgp-routes"; list route { container af-specific-config { container l2vpn { container evpn { description "evpn routes."; Liu, et al. Expires November 27, 2015 [Page 10] Internet-Draft Ethernet VPN Yang Model November 2015 container ethernet-auto-discovery-route { container esi { decription "esi"; leaf esi-type { type esi-type-enum; description "esi type"; } leaf-list esi-value { type uint8; max-element 9; description "esi value"; } } leaf etag { type uint32; description "Ethernet Tag." } } container mac-ip-route { container esi { decription "esi"; leaf esi-type { type esi-type-enum; description "esi type"; } leaf-list esi-value { type uint8; max-element 9; description "esi value"; } } leaf etag { type uint32; description "Ethernet Tag."; } leaf-list mac-addr { type uint8; max-element 6; description "mac address"; } leaf ip-addr { type inet:ip-address; description "Ip address."; } } container inclusive-multicast-Ethernet-Tag-route { leaf etag { type uint32; description "Ethernet Tag." } leaf originator-ip-addr { type inet:ip-address; description "Ip address of the originator."; } } Liu, et al. Expires November 27, 2015 [Page 11] Internet-Draft Ethernet VPN Yang Model November 2015 container ethernet-segment-route { container esi { decription "esi"; leaf esi-type { type esi-type-enum; description "esi type"; } leaf-list esi-value { type uint8; max-element 9; description "esi value"; } } leaf originator-ip-addr { type inet:ip-address; description "Ip address of the originator."; } } } } } } } } 6. Security Considerations This document does not introduce any new security risk. 7. IANA Considerations This document makes no request of IANA. 8. Acknowlegements The authors would like to thank Raju Dugyala, Antoni Przygienda, Sajjad Ahmed, Prasanna Chalapathy for their valuable contributions to this document. The authosr would also like to thank Xufeng Liu for his review and comments on the draft. Liu, et al. Expires November 27, 2015 [Page 12] Internet-Draft Ethernet VPN Yang Model November 2015 9. References 9.1. Normative References [RFC7432] Sajassi, A., Aggarwal, R., Bitar, N., Isaac, A., and J. Uttaro, "BGP MPLS Based Ethernet VPN", RFC 7432, February 2015. [RFC6020] Bjorklund, M.,"Yang - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, October 2010. [RFC6241] Enns, R., Bjorklund, M., Schoenwaelder, J., and A. Bierman, "Network Configuration Protocol (NETCONF)", RFC 6241, June 2011. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. 9.2. Informative References Authors' Addresses Autumn Liu Ericsson Email: autumn.liu@ericsson.com