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
