MTU propagation over EVPN Overlays
draft-nvo3-mtu-propagation-over-evpn-overlays-01
| Document | Type | Replaced Internet-Draft (individual) | |
|---|---|---|---|
| Authors | Saumya Dikshit , Vinayak Joshi , A Sujeet Nayak | ||
| Last updated | 2021-08-03 | ||
| Replaces | draft-saum-nvo3-pmtud-over-vxlan | ||
| Replaced by | draft-saum-nvo3-mtu-propagation-over-evpn-overlays | ||
| Stream | (None) | ||
| Intended RFC status | (None) | ||
| Formats |
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| Stream | Stream state | (No stream defined) | |
| Consensus boilerplate | Unknown | ||
| RFC Editor Note | (None) | ||
| IESG | IESG state | Replaced by draft-saum-nvo3-mtu-propagation-over-evpn-overlays | |
| Telechat date | (None) | ||
| Responsible AD | (None) | ||
| Send notices to | (None) |
https://www.ietf.org/archive/id/draft-nvo3-mtu-propagation-over-evpn-overlays-01.txt
Abstract
Path MTU Discovery between end-host-devices/Virtual-Machines/servers/ workloads connected over an EVPN-Overlay Network in an Datacenter/Campus/enterprise deployment, is a problem, yet to be resolved in the standards forums. It needs a converged solution to ensure optimal usage of network and computational resources of the underlay routers/switches forming the basis of the overlay network. This documents takes leads from the guidelines presented in [RFC4459]. The overlay connectivity can pan across various sites (geographically seperated or collocated) for realizing a Datacenter Interconnect or intersite VPNs between campus sites (buildings, branch offices etc). This literature intends to solve problem of icmp error propagation from an underlay routing/switching device to an end-host (hooked to EVPN overlay), thus facilitating "accurate MTU" learnings. This document also leverages the icmp multipart message extension, mentioned in [RFC4884] to carry the original packet in the icmp PDU.
Authors
Saumya Dikshit
Vinayak Joshi
A Sujeet Nayak
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)