1. draft-polk-tsvwg-intserv-multiple-tspec-06
IETF80 (Prague)
James Polk
Subha Dhesikan

2. draft-polk-tsvwg-intserv-multiple-tspec-06
Scope of ID
This doc creates the optimization of conveying more than one TSPEC:
in a PATH message, and
in a corresponding RESV message
This is proposing an extension to IntServ
draft-polk-tsvwg-intserv-multiple-tspec-06

3. Concept of IntServ Extension for Multiple Traffic Specs
Sender Rtr Rtr Rtr-N Receiver
| | | | |
| PATH (with 3 Traffic Specs: 12Mbps, 5Mbps, 1Mbps) |
| >| >| >| >|
| | | RESV (with 3 FLOWSPECs |
| | | 12Mbps, 5Mbps & 1Mbps) |
| | X < |< |
| Rtr-2 cannot grant 12Mbps | |
| RESV (with 2 FLOWSPECs | | |
| Mbps & 1Mbps) | | |
|< |< | ResvErr BW reduc. to 5Mbps
| | | >| >|
draft-polk-tsvwg-intserv-multiple-tspec-06

4. Newly Fixed Open issues
Fixed insufficient text on mulitcast
Believe insufficient text on Shared Line is a hard problem, and haven’t solved this yet.
This is similar to multicast, but looking for where it is not
Created new error indicating all TSPECs were not grantable, not just the original TSPEC
This is about non-upgraded routers experiencing congestion
draft-polk-tsvwg-intserv-multiple-tspec-06

5. draft-polk-tsvwg-intserv-multiple-tspec-06
Next Steps
Sufficiently robust in direction to make WG item?
NEED to get more detailed reviews for consideration as WG item
draft-polk-tsvwg-intserv-multiple-tspec-06