RFC 2675 (rfc2675) - Page 1 of 9


IPv6 Jumbograms



Alternative Format: Original Text Document



Network Working Group                                          D. Borman
Request for Comments: 2675                      Berkeley Software Design
Obsoletes: 2147                                               S. Deering
Category: Standards Track                                          Cisco
                                                               R. Hinden
                                                                   Nokia
                                                             August 1999
                            IPv6 Jumbograms

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Abstract

   A "jumbogram" is an IPv6 packet containing a payload longer than
   65,535 octets.  This document describes the IPv6 Jumbo Payload
   option, which provides the means of specifying such large payload
   lengths.  It also describes the changes needed to TCP and UDP to make
   use of jumbograms.

   Jumbograms are relevant only to IPv6 nodes that may be attached to
   links with a link MTU greater than 65,575 octets, and need not be
   implemented or understood by IPv6 nodes that do not support
   attachment to links with such large MTUs.

1. Introduction

      jumbo (jum'bO),

          n., pl. -bos, adj.
          -n.
          1. a person, animal, or thing very large of its kind.
          -adj.
          2. very large: the jumbo box of cereal.

          [1800-10; orig. uncert.; popularized as the name of a large
           elephant purchased and exhibited by P.T. Barnum in 1882]

                                              -- www.infoplease.com



Borman, et al.              Standards Track