PBB-EVPN ISID-based CMAC-Flush
draft-snr-bess-pbb-evpn-isid-cmacflush-02
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2017-07-03
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BESS Workgroup J. Rabadan, Ed.
Internet Draft S. Sathappan
Intended status: Standards Track K. Nagaraj
Nokia
M. Miyake
T. Matsuda
Softbank
Expires: January 4, 2018 July 3, 2017
PBB-EVPN ISID-based CMAC-Flush
draft-snr-bess-pbb-evpn-isid-cmacflush-02
Abstract
RFC7623 defines how Provider Backbone Bridging (PBB) can be combined
with Ethernet VPN (EVPN) to deploy ELAN services in very large MPLS
networks. RFC7623 also describes how Single-Active Multi-homing and
per-ISID Load-Balancing can be provided to access devices and
aggregation networks. In order to speed up the network convergence in
case of failures on Single-Active Multi-Homed Ethernet Segments,
RFC7623 defines a CMAC-Flush mechanism that works for different
Ethernet Segment BMAC address allocation models. This document
complements those CMAC-Flush procedures for cases in which no PBB-
EVPN Ethernet Segments are defined (ESI 0) and an ISID-based CMAC-
Flush granularity is desired.
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
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Sathappan,Nagaraj,Rabadan et al.Expires January 4, 2018 [Page 1]
Internet-Draft PBB-EVPN ISID-based CMAC-flush July 3, 2017
The list of Internet-Draft Shadow Directories can be accessed at
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This Internet-Draft will expire on January 4, 2018.
Copyright 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
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Table of Contents
1. Problem Statement . . . . . . . . . . . . . . . . . . . . . . . 2
2. Solution requirements . . . . . . . . . . . . . . . . . . . . . 4
3. EVPN BGP Encoding for ISID-based CMAC-flush . . . . . . . . . . 5
4. Solution description . . . . . . . . . . . . . . . . . . . . . 6
4.1 ISID-based CMAC-Flush activation procedures . . . . . . . . 6
4.2 CMAC-Flush generation . . . . . . . . . . . . . . . . . . . 7
4.3 CMAC-Flush process upon receiving a CMAC-Flush
notification . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6. Conventions used in this document . . . . . . . . . . . . . . . 8
7. Security Considerations . . . . . . . . . . . . . . . . . . . . 9
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 9
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9
9.1 Normative References . . . . . . . . . . . . . . . . . . . . 9
9.2 Informative References . . . . . . . . . . . . . . . . . . . 9
10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 9
11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 9
17. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 10
1. Problem Statement
RFC7623 defines how Provider Backbone Bridging (PBB) can be combined
Sathappan,Nagaraj,Rabadan et al.Expires January 4, 2018 [Page 2]
Internet-Draft PBB-EVPN ISID-based CMAC-flush July 3, 2017
with Ethernet VPN (EVPN) to deploy ELAN services in very large MPLS
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