RFC 1356 (rfc1356) - Page 1 of 14
Multiprotocol Interconnect on X
Alternative Format: Original Text Document
Network Working Group A. Malis
Request for Comments: 1356 BBN Communications
Obsoletes: RFC 877 D. Robinson
Computervision Systems Integration
R. Ullmann
Process Software Corporation
August 1992
Multiprotocol Interconnect
on X.25 and ISDN in the Packet Mode
Status of this Memo
This RFC specifies an IAB standards track protocol for the Internet
community, and requests discussion and suggestions for improvements.
Please refer to the current edition of the "IAB Official Protocol
Standards" for the standardization state and status of this protocol.
Distribution of this memo is unlimited.
Abstract
This document specifies the encapsulation of IP and other network
layer protocols over X.25 networks, in accordance and alignment with
ISO/IEC and CCITT standards. It is a replacement for RFC 877, "A
Standard for the Transmission of IP Datagrams Over Public Data
Networks" [1].
It 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.
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.
Malis, Robinson, & Ullmann