Re: [Idr] RtgDir review: draft-ietf-idr-sla-exchange-10

[Ron Bonica <[e-mail]>]

Hello,

The draft is internally consistent. But given what is left out of scope, I wonder if the new attributes will ever be widely deployed.

                                                                                Ron



This document might benefit from discussion of operational issues. I assume that when a BGP listener learns a route with the SLA Exchange Attribute, it provisions class of service forwarding classes on interfaces.


##svshah, though this is one desired use of exchanging SLA content, the draft focuses on transporting SLA content from the SLA Producer to the SLA Consumer. Processing of the QoS attribute content, at the SLA Consumer, is outside the scope of this document.



##svshah, Let me know if you have a suggestion to make description clearer in Section 1 and 2 to highlight this.


I also assume that a) it takes time to provision class of service forwarding classes and b) the number of forwarding classes that can be provisioned are finite. What does the BGP listener do when the number of forwarding classes requested exceeds its capacity to deliver?


##svshah, Since scope of the document is to transport SLA content from the SLA Producer to the SLA Consumer, the document considers error handling in the context of transporting data and thus any formating errors and semantics errors within that context. Any errors in the context of processing QoS attribute content at the SLA Consumer is outside the scope of the document.