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The Assignment of the Information Field and Protocol Identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet Protocol
RFC 3033

Document type: RFC - Proposed Standard (January 2001; No errata)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Document shepherd: No shepherd assigned

IESG State: RFC 3033 (Proposed Standard)
Responsible AD: (None)
Send notices to: No addresses provided

Network Working Group                                          M. Suzuki
Request for Comments: 3033                                           NTT
Category: Standards Track                                   January 2001

    The Assignment of the Information Field and Protocol Identifier
   in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling
                       for the Internet Protocol

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 (2001).  All Rights Reserved.

Abstract

   The purpose of this document is to specify the assignment of the
   information field and protocol identifier in the Q.2941 Generic
   Identifier and Q.2957 User-to-user Signaling for the Internet
   protocol.

   The assignment, that is specified in section 4 of this document, is
   designed for advanced B-ISDN signaling support of the Internet
   protocol, especially the B-ISDN signaling support for the connection
   that corresponds to the session in the Internet protocol which is
   clarified in section 2.  This specification provides an indispensable
   framework for the implementation of long-lived session and QoS-
   sensitive session transfers over ATM.

1. Purpose of Document

   The purpose of this document is to specify the assignment of the
   information field and protocol identifier in the Q.2941 Generic
   Identifier and Q.2957 User-to-user Signaling for the Internet
   protocol.

   The assignment, that is specified in section 4 of this document, is
   designed for advanced B-ISDN signaling support of the Internet
   protocol, especially the B-ISDN signaling support for the connection
   that corresponds to the session in the Internet protocol which is

Suzuki                      Standards Track                     [Page 1]
RFC 3033             GIT and UUS Assignment for IP          January 2001

   clarified in section 2.  Needless to say, the purpose of this
   specification is not limited to this support, and it should also be
   applicable to other purposes.

   This specification provides an indispensable framework for the
   implementation of long-lived session and QoS-sensitive session
   transfers over ATM.  Note that this document only specifies the
   assignment of the information field and protocol identifier, and that
   it may not specify complete protocol that enables interoperable
   implementation.  This is because it is beyond the scope of this
   document and will be specified in a separate document.

2. Session-related ATM Connection

   With the development of new multimedia applications on the current
   Internet, the demands for multimedia support are increasing in the IP
   network, which currently supports best effort communications.  In
   particular, demands to support QoS guaranteed communications are
   increasing with the development of voice, audio, and video
   communications applications.  And it may also be necessary to
   introduce the mechanism that can efficiently transfer the huge volume
   of traffic expected with these applications.

   The major features of B-ISDN are high speed, logical multiplexing
   with the VP/VC, and flexible QoS management per VC, so it is quite
   natural to use these distinctive functions of B-ISDN to implement a
   multimedia support mechanism in the IP network.  The flexible QoS
   management and logical multiplexing functions in B-ISDN are the
   expected method of implementing the QoS guaranteed communications in
   the Internet.  And when a long-lived session is supported by a
   particular VC, efficient packet forwarding may be possible using the
   high speed and logical multiplexing of B-ISDN.

   This section clarifies B-ISDN signaling functions that are required
   when the session is supported by the VC, for advanced B-ISDN
   signaling support of the Internet protocol.

Suzuki                      Standards Track                     [Page 2]
RFC 3033             GIT and UUS Assignment for IP          January 2001

2.1 Long-lived Session Signaling

   An example scenario for establishing a VC for a long-lived session is
   shown in Fig. 2.1.

         IP Router      ATM SW         ATM SW       IP Router
+----+                        Default VC                        +----+
| WS |   +------+  UNI  +-----+        +-----+  UNI  +------+   | WS |
+--+-+   |   /->|<------+-\-/-+--------+-\-/-+------>|<-\   |   +-+--+

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