ITU-T SERIES Q SUPP 61 PDF

The scope of this supplement is stated as follows:

• Examine existing horizontal and vertical protocol extensions that can support the signalling of admission control priority in next generation networks (NGN). Specifically, if such extensions exist, then the number of allowed priority levels needs to be defined such that all three ITU-T Y.2171 admission control priority levels/categories can be supported.

• Emphasize critical priority requirements for ETS – note that ITU-T Y.2171 priority level 1 is exclusively reserved for emergency telecommunications applications.

• Provide guidance in terms of suggested mappings between existing priority supporting protocol extensions and ITU-T Y.2171 priority levels/categories.

• If existing extensions are found to be insufficient in supporting all ITU-T Y.2171 priority levels/categories, then further actions can be recommended appropriately.