Close Encounters of the ICMP Type 2 Kind (Near Misses with ICMPv6 Packet Too Big (PTB)), January 2016
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- M. Byerly
- v6ops (ops)
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This document calls attention to the problem of delivering ICMPv6 type 2 "Packet Too Big" (PTB) messages to the intended destination (typically the server) in ECMP load-balanced or anycast network architectures. It discusses operational mitigations that can be employed to address this class of failures.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.