RFC 1755 (rfc1755) - Page 2 of 32

ATM Signaling Support for IP over ATM

RFC 1755         ATM Signaling Support for IP over ATM     February 1995


   UNI 3.1 is considered an erratum to the UNI 3.0 specification. It has
   been produced by the ATM Forum, largely for reasons of alignment with
   Recommendation Q.2931. Although UNI 3.1 is based on UNI 3.0 there are
   several changes that make the two versions incompatible. A
   description of how to support IP over ATM using UNI 3.0 is found in
   Appendix B.

Table of Contents

     1.  Conventions ...............................................   3
     2.  Overview ..................................................   3
     3.  Use of Protocol Procedures ................................   4
         3.1  VC Establishment .....................................   4
         3.2  Multiprotocol Support on VCs  ........................   4
         3.3  Support for Multiple VCs .............................   5
         3.4  VC Teardown...........................................   6
     4.  Overview of UNI Call Setup Signaling ......................   6
     5.  Overview of Call Establishment Message Content ............   7
     6.  Information Elements with Endpoint Significance ...........   8
         6.1  ATM Adaptation Layer Parameters ......................   8
         6.2  Broadband Low Layer Information  .....................   8
              6.2.1  Framework for Protocol Layering ...............   9
     7.  Information Elements with Significance to the ATM Network .  11
         7.1  ATM Traffic Descriptor ...............................  11
         7.2  Broadband Bearer Capability ..........................  15
         7.3  QoS Parameter.........................................  16
         7.4  ATM Addressing Information ...........................  16
     8.  Dealing with Failure of Call Establishment.................  18
     9. Security Considerations ....................................  18
     10. Open Issues ...............................................  19
     11. Acknowledgements...........................................  19
     12. References ................................................  19
     13. Authors' Addresses ........................................  20
     Appendix A  Sample Signaling Messages .........................  22
     Appendix B  IP over ATM using UNI 3.0 Signaling ...............  25
     Appendix C  Combinations of Traffic Related Parameters ........  27
     Appendix D  Frame Relay Interworking ..........................  28














Perez, Liaw, Mankin, Hoffman, Grossman & Malis