draft-ietf-bess-evpn-oam-req-frmwk-09.txt   draft-ietf-bess-evpn-oam-req-frmwk-10.txt 
INTERNET-DRAFT Samer Salam INTERNET-DRAFT Samer Salam
Intended Status: Informational Ali Sajassi Intended Status: Informational Ali Sajassi
Cisco Cisco
Sam Aldrin Sam Aldrin
Google Google
John E. Drake John E. Drake
Juniper Juniper
Donald Eastlake Donald Eastlake
Futurewei Futurewei
Expires: October 11, 2021 April 12, 2021 Expires: October 14, 2021 April 15, 2021
EVPN Operations, Administration and Maintenance EVPN Operations, Administration and Maintenance
Requirements and Framework Requirements and Framework
draft-ietf-bess-evpn-oam-req-frmwk-09 draft-ietf-bess-evpn-oam-req-frmwk-10
Abstract Abstract
This document specifies the requirements and reference framework for This document specifies the requirements and reference framework for
Ethernet VPN (EVPN) Operations, Administration and Maintenance (OAM). Ethernet VPN (EVPN) Operations, Administration and Maintenance (OAM).
The requirements cover the OAM aspects of EVPN and PBB-EVPN (Provider The requirements cover the OAM aspects of EVPN and PBB-EVPN (Provider
Backbone Bridge EVPN). The framework defines the layered OAM model Backbone Bridge EVPN). The framework defines the layered OAM model
encompassing the EVPN service layer, network layer, underlying Packet encompassing the EVPN service layer, network layer, underlying Packet
Switched Network (PSN) transport layer, and link layer but focuses on Switched Network (PSN) transport layer, and link layer but focuses on
the service and network layers. the service and network layers.
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In EVPN, a label is allocated per multi-homed Ethernet Segment for In EVPN, a label is allocated per multi-homed Ethernet Segment for
the purpose of performing the access split-horizon enforcement. The the purpose of performing the access split-horizon enforcement. The
label is bound to an EVPN Ethernet Segment. label is bound to an EVPN Ethernet Segment.
- the correct operation of the DF (Designated Forwarder [RFC7432]) - the correct operation of the DF (Designated Forwarder [RFC7432])
filtering function. EVPN Network OAM MUST provide mechanisms to filtering function. EVPN Network OAM MUST provide mechanisms to
check the operation of the data plane and verify that operation check the operation of the data plane and verify that operation
against the control plane view for the DF filtering function. against the control plane view for the DF filtering function.
EVPN Network OAM mechanisms MUST provide in-band monitoring EVPN Network OAM mechanisms MUST provide in-band monitoring
capabilities. OAM messages SHOULD be encoded so that they exhibit capabilities. It is desirable, to the extent practical, for OAM test
similar entropy characteristics to data traffic in order to maximize messages to share fate with data messages. Details of how to achieve
the fate sharing between OAM and data. this are beyond the scope of this document.
EVPN Network OAM SHOULD provide both proactive and on-demand EVPN Network OAM SHOULD provide both proactive and on-demand
mechanisms of monitoring the data plane operation and data plane mechanisms of monitoring the data plane operation and data plane
conformance to the state of the control plane. conformance to the state of the control plane.
2.4 Transport OAM for EVPN 2.4 Transport OAM for EVPN
The transport OAM protocol depends on the nature of the underlying The transport OAM protocol depends on the nature of the underlying
transport technology in the PSN. MPLS OAM mechanisms [RFC8029] transport technology in the PSN. MPLS OAM mechanisms [RFC8029]
[RFC6425] as well as ICMP [RFC792] / ICMPv6 [RFC4443] are applicable, [RFC6425] as well as ICMP [RFC792] / ICMPv6 [RFC4443] are applicable,
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