January 2004
Intermediate to advanced
536 pages
13h 2m
English
Content preview from IPv6, 2nd Edition
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Chapter 7 • IPv6 Protocol Basics 135
link-specific fragmentation and reassembly mechanism incorporated into
a link layer protocol.
While 1280 octets is the required minimum MTU for links carrying IPv6
traffic, RFC 2460 recommends that wherever possible the MTU should be
set to 1500 octets or more. The higher the MTU, the less likely the need for
fragmentation will arise when IPv4 (or other protocols) are encapsulated
within IPv6 packets.
7.6.2 FRAGMENTATION
Although IPv6 forbids intermediate nodes from fragmenting packets that
are too large for the local link, end-to-end fragmentation is permitted.
Source nodes may fragment packets that are reassembled
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