Liaison statement
Liaison Statement to CCAMP on GMPLS Calls
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State | Posted |
---|---|
Submitted Date | 2007-09-20 |
From Group | ITU-T-SG-15 |
From Contact | Hiroshi Ota |
To Group | ccamp |
To Contacts | adrian@olddog.co.uk dbrungard@att.com |
Cc | sob@harvard.edu dward@cisco.com rcallon@juniper.net zinin@psg.com yoichi.maeda@ntt-at.co.jp sjtrowbridge@alcatel-lucent.com hklam@alcatel-lucent.com betts01@nortel.com tsbsg15@itu.int |
Response Contact | tsbsg15@itu.int |
Technical Contact | hklam@alcatel-lucent.com betts01@nortel.com |
Purpose | For action |
Deadline | 2008-02-04 Action Taken |
Attachments | Liaison Statement to CCAMP on GMPLS Calls - body text |
Body |
Thank you for your careful response. The assumptions about the GMPLS call being as general as possible are noted, and we are interested to know what other call applications there may be in addition to ASON and the CCAMP VCAT draft. The description given of how information relevant to Call Controllers is transparent in the network (between call boundaries, and to the means of delivering the call message) is consistent with our understanding. However, TNA information while “not used in the propagation or delivery of the message� is used to identify the destination UNI and hence Network Call Controller, and may by used at ENNIs to also determined the next Network Call Controller in the sequence of call segments that constitute the call. We would appreciate guidance on how to carry ASON call information across a GMPLS network so that it can be reconstructed at ASON call boundaries. This would include communication between ASON UNI to UNI, UNI to ENNI, and ENNI to ENNI (both over a link between domains and across a GMPLS domain). As mentioned in the liaison, we support the resumption of work on a CCAMP I-D on ASON applicability to address the above and would welcome the opportunity to contribute through liaisons. An electronic copy of this liaison statement is available at: ftp://ftp.itu.int/tsg15opticaltransport/COMMUNICATIONS/index.html> |