IGMP and MLD Proxy for EVPN
draft-ietf-bess-evpn-igmp-mld-proxy-05
BESS WorkGroup A. Sajassi
Internet-Draft S. Thoria
Intended status: Standards Track Cisco Systems
Expires: October 30, 2020 K. Patel
Arrcus
J. Drake
W. Lin
Juniper Networks
April 28, 2020
IGMP and MLD Proxy for EVPN
draft-ietf-bess-evpn-igmp-mld-proxy-05
Abstract
Ethernet Virtual Private Network (EVPN) solution is becoming
pervasive in data center (DC) applications for Network Virtualization
Overlay (NVO) and DC interconnect (DCI) services, and in service
provider (SP) applications for next generation virtual private LAN
services.
This draft describes how to support efficiently endpoints running
IGMP for the above services over an EVPN network by incorporating
IGMP proxy procedures on EVPN PEs.
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 October 30, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Sajassi, et al. Expires October 30, 2020 [Page 1]
Internet-Draft IGMP and MLD Proxy for EVPN April 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Specification of Requirements . . . . . . . . . . . . . . . . 4
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. IGMP/MLD Proxy . . . . . . . . . . . . . . . . . . . . . . . 5
4.1. Proxy Reporting . . . . . . . . . . . . . . . . . . . . . 6
4.1.1. IGMP/MLD Membership Report Advertisement in BGP . . . 6
4.1.2. IGMP/MLD Leave Group Advertisement in BGP . . . . . . 8
4.2. Proxy Querier . . . . . . . . . . . . . . . . . . . . . . 8
5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1. PE with only attached hosts/VMs for a given subnet . . . 10
5.2. PE with a mix of attached hosts/VMs and multicast source 11
5.3. PE with a mix of attached hosts/VMs, a multicast source
and a router . . . . . . . . . . . . . . . . . . . . . . 11
6. All-Active Multi-Homing . . . . . . . . . . . . . . . . . . . 11
6.1. Local IGMP/MLD Join Synchronization . . . . . . . . . . . 11
6.2. Local IGMP/MLD Leave Group Synchronization . . . . . . . 12
6.2.1. Remote Leave Group Synchronization . . . . . . . . . 13
6.2.2. Common Leave Group Synchronization . . . . . . . . . 13
6.3. Mass Withdraw of Multicast join Sync route in case of
failure . . . . . . . . . . . . . . . . . . . . . . . . . 14
7. Single-Active Multi-Homing . . . . . . . . . . . . . . . . . 14
8. Selective Multicast Procedures for IR tunnels . . . . . . . . 14
9. BGP Encoding . . . . . . . . . . . . . . . . . . . . . . . . 15
9.1. Selective Multicast Ethernet Tag Route . . . . . . . . . 15
9.1.1. Constructing the Selective Multicast Ethernet Tag
route . . . . . . . . . . . . . . . . . . . . . . . . 17
9.1.2. Default Selective Multicast Route . . . . . . . . . . 18
9.2. Multicast Join Synch Route . . . . . . . . . . . . . . . 19
9.2.1. Constructing the Multicast Join Synch Route . . . . . 21
9.3. Multicast Leave Synch Route . . . . . . . . . . . . . . . 22
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