Summary

This Recommendation meets the requirements of ITU-T Rec. G.7713/Y.1704 and is functionally similar to ITU-T Recs G.7713.1/Y.1704.1 and G.7713.3/Y.1704.3. This Recommendation covers the areas associated with the signalling aspects of automatic switched transport network (ASTN). Specifically it provides the signalling protocol based on the GMPLS RSVP-TE. This Recommendation focuses on the UNI and E-NNI interface specification. While these protocol specifications are generally applicable to the I-NNI as well, the I-NNI interface specification is for further study. This Recommendation encompasses support for Soft Permanent Connection (SPC) services. This version also includes support for Switched Connection (SC) services for intra-carrier application. As such, name translation/directory services and call capability sets are not included. This signalling protocol is used for the communications of call controller, connection controller and link resource manager. Areas covered include:

–           message specifications;

–           attribute specifications;

–           signal flows.

This Recommendation does not cover any aspects related to routing, or automatic discovery.