Glossary: TCP/IP in Depth, Part 1
Packet Too Big
Also written: ICMPv6 type 2
The ICMPv6 error (type 2) a router sends when an IPv6 packet is too big for the next link. It carries that link's MTU, because IPv6 routers never fragment.
Glossary: TCP/IP in Depth, Part 1
Also written: ICMPv6 type 2
The ICMPv6 error (type 2) a router sends when an IPv6 packet is too big for the next link. It carries that link's MTU, because IPv6 routers never fragment.