The IESG has approved the following document: - 'Close encounters of the ICMP type 2 kind (near misses with ICMPv6 PTB)' (draft-ietf-v6ops-pmtud-ecmp-problem-06.txt) as Informational RFC This document is the product of the IPv6 Operations Working Group. The IESG contact persons are Benoit Claise and Joel Jaeggli. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-v6ops-pmtud-ecmp-problem/ Technical Summary This document calls attention to the problem of delivering ICMPv6 type 2 "Packet Too Big" (PTB) messages to the intended destination in ECMP load balanced or anycast network architectures. It discusses operational mitigations that can be employed to address this class of failures. Working Group Summary The draft has been accepted with enthusiasm. Document Quality This is not a protocol. The operational mitigations proposed have been implemented in various places, but are not uniformly implemented. Personnel The Document Shepherd is Fred Baker. The Responsible Area Director is Benoit Claise.