RFC 3033 (rfc3033) - Page 2 of 25

The Assignment of the Information Field and Protocol Identifier in the Q

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