A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : IPv6 Path MTU Updates Author(s) : Fred L. Templin Filename : draft-generic-6man-tunfrag-04.txt Pages : 6 Date : 2012-07-11 Abstract: IPv6 intentionally deprecates fragmentation by routers in the network. Instead, links with restricting MTUs must either drop each too-large packet and return an ICMPv6 Packet Too Big (PTB) message or perform link-specific fragmentation (also known as "link adaptation") at a layer below IPv6. This latter category of links is often performance-challenged to accommodate steady-state link-specific fragmentation and reassembly to the point that it would be highly desirable to push the workload back to the IPv6 communication endpoints. A common case that exhibits these link characteristics is seen for IPv6-within-IP tunnels. Additionally, IPv6 nodes can avoid path MTU discovery issues even when no link adaptation is necessary by performing a small amount of fragmentation and/or by probing the path as necessary. This document therefore proposes an update to the base IPv6 specification to better accommodate path MTU issues. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-generic-6man-tunfrag There's also a htmlized version available at: http://tools.ietf.org/html/draft-generic-6man-tunfrag-04 A diff from previous version is available at: http://tools.ietf.org/rfcdiff?url2=draft-generic-6man-tunfrag-04 Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ _______________________________________________ I-D-Announce mailing list I-D-Announce@ietf.org https://www.ietf.org/mailman/listinfo/i-d-announce Internet-Draft directories: http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
