< draft-ietf-bess-evpn-irb-extended-mobility-07.txt   draft-ietf-bess-evpn-irb-extended-mobility-08.txt >
BESS WorkGroup N. Malhotra, Ed. BESS WorkGroup N. Malhotra, Ed.
Internet-Draft A. Sajassi Internet-Draft A. Sajassi
Intended status: Standards Track A. Pattekar Intended status: Standards Track A. Pattekar
Expires: 5 April 2022 Cisco Systems Expires: 22 October 2022 Cisco Systems
J. Rabadan J. Rabadan
Nokia Nokia
A. Lingala A. Lingala
ATT ATT
J. Drake J. Drake
Juniper Networks Juniper Networks
2 October 2021 20 April 2022
Extended Mobility Procedures for EVPN-IRB Extended Mobility Procedures for EVPN-IRB
draft-ietf-bess-evpn-irb-extended-mobility-07 draft-ietf-bess-evpn-irb-extended-mobility-08
Abstract Abstract
Procedure to handle host mobility in a layer 2 Network with EVPN Procedure to handle host mobility in a layer 2 Network with EVPN
control plane is defined as part of RFC 7432. EVPN has since evolved control plane is defined as part of RFC 7432. EVPN has since evolved
to find wider applicability across various IRB use cases that include to find wider applicability across various IRB use cases that include
distributing both MAC and IP reachability via a common EVPN control distributing both MAC and IP reachability via a common EVPN control
plane. MAC Mobility procedures defined in RFC 7432 are extensible to plane. MAC Mobility procedures defined in RFC 7432 are extensible to
IRB use cases if a fixed 1:1 mapping between VM IP and MAC is assumed IRB use cases if a fixed 1:1 mapping between VM IP and MAC is assumed
across VM moves. Generic mobility support for IP and MAC that allows across VM moves. Generic mobility support for IP and MAC that allows
skipping to change at page 2, line 4 skipping to change at page 2, line 4
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This Internet-Draft will expire on 5 April 2022. This Internet-Draft will expire on 22 October 2022.
Copyright Notice Copyright Notice
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Table of Contents Table of Contents
1. Requirements Language and Terminology . . . . . . . . . . . . 3 1. Requirements Language and Terminology . . . . . . . . . . . . 3
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Document Structure . . . . . . . . . . . . . . . . . . . 6 2.1. Document Structure . . . . . . . . . . . . . . . . . . . 6
3. Optional MAC only RT-2 . . . . . . . . . . . . . . . . . . . 6 3. Optional MAC only RT-2 . . . . . . . . . . . . . . . . . . . 6
4. Mobility Use Cases . . . . . . . . . . . . . . . . . . . . . 6 4. Mobility Use Cases . . . . . . . . . . . . . . . . . . . . . 6
4.1. Host MAC+IP Move . . . . . . . . . . . . . . . . . . . . 7 4.1. Host MAC+IP Move . . . . . . . . . . . . . . . . . . . . 7
4.2. Host IP Move to new MAC . . . . . . . . . . . . . . . . . 7 4.2. Host IP Move to new MAC . . . . . . . . . . . . . . . . . 7
4.2.1. VM Reload . . . . . . . . . . . . . . . . . . . . . . 7 4.2.1. VM Reload . . . . . . . . . . . . . . . . . . . . . . 7
4.2.2. MAC Sharing . . . . . . . . . . . . . . . . . . . . . 7 4.2.2. MAC Sharing . . . . . . . . . . . . . . . . . . . . . 7
4.2.3. Problem . . . . . . . . . . . . . . . . . . . . . . . 8 4.2.3. Problem . . . . . . . . . . . . . . . . . . . . . . . 7
4.3. Host MAC move to new IP . . . . . . . . . . . . . . . . . 9 4.3. Host MAC move to new IP . . . . . . . . . . . . . . . . . 8
4.3.1. Problem . . . . . . . . . . . . . . . . . . . . . . . 9 4.3.1. Problem . . . . . . . . . . . . . . . . . . . . . . . 9
5. EVPN All Active multi-homed ES . . . . . . . . . . . . . . . 10 5. EVPN All Active multi-homed ES . . . . . . . . . . . . . . . 10
6. Design Considerations . . . . . . . . . . . . . . . . . . . . 12 6. Design Considerations . . . . . . . . . . . . . . . . . . . . 11
7. Solution Components . . . . . . . . . . . . . . . . . . . . . 12 7. Solution Components . . . . . . . . . . . . . . . . . . . . . 12
7.1. Sequence Number Inheritance . . . . . . . . . . . . . . . 12 7.1. Sequence Number Inheritance . . . . . . . . . . . . . . . 12
7.2. MAC Sharing . . . . . . . . . . . . . . . . . . . . . . . 13 7.2. MAC Sharing . . . . . . . . . . . . . . . . . . . . . . . 13
7.3. Multi-homing Mobility Synchronization . . . . . . . . . . 14 7.3. Multi-homing Mobility Synchronization . . . . . . . . . . 14
8. Requirements for Sequence Number Assignment . . . . . . . . . 15 8. Requirements for Sequence Number Assignment . . . . . . . . . 15
8.1. LOCAL MAC-IP learning . . . . . . . . . . . . . . . . . . 15 8.1. LOCAL MAC-IP learning . . . . . . . . . . . . . . . . . . 15
8.2. LOCAL MAC learning . . . . . . . . . . . . . . . . . . . 15 8.2. LOCAL MAC learning . . . . . . . . . . . . . . . . . . . 15
8.3. Remote MAC OR MAC-IP Update . . . . . . . . . . . . . . . 16 8.3. Remote MAC OR MAC-IP Update . . . . . . . . . . . . . . . 16
8.4. REMOTE (SYNC) MAC update . . . . . . . . . . . . . . . . 16 8.4. REMOTE (SYNC) MAC update . . . . . . . . . . . . . . . . 16
8.5. REMOTE (SYNC) MAC-IP update . . . . . . . . . . . . . . . 16 8.5. REMOTE (SYNC) MAC-IP update . . . . . . . . . . . . . . . 16
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