Protocol Action: Multiprotocol Interconnect over X.25 and ISDN to Proposed Standard

[Internet Engineering Steering Group <[e-mail]>]

Recommendation:
 
   The IESG recommends that the Internet Draft "Multiprotocol
   Interconnect on X.25 and ISDN in the Packet Mode"
   <draft-ietf-iplpdn-x25_isdn> be published as a Proposed Standard.
   This specification is intended to replace the Standard defined in
   RFC 877 when it becomes a Standard. This document is the product of
   the IP over Large Public Data Networks Working Group of the IETF.

Abstract:

   This document was written to correct several ambiguities in the
   Internet Standard for IP/X.25 (RFC 877), to align it with ISO/IEC
   standards that have been written following RFC 877, to allow
   interoperable multiprotocol operation between routers and bridges
   over X.25, and to add some additional remarks based upon practical
   experience with the specification over the 8 years since that RFC.

Technical Summary

   The substantive change to the IP encapsulation is an increase in the
   allowed IP datagram Maximum Transmission Unit from 576 to 1600, to
   reflect existing practice.

   This document also specifies the Internet encapsulation for
   protocols, including IP, on the packet mode of the ISDN.  It applies
   to the use of Internet protocols on the ISDN in the circuit mode only
   when the circuit is established as an end-to-end X.25 connection.