Subject: RE: Unreserved bandwidth in "draft-katz-yeung-ospf-traffic-05.txt "

From: Girish Bhat <[email-masked]>
Date: Wed, 20 Jun 2001 09:58:33 -0700

The priority level has nothing to do with Cos. This is actually the
preemption priority. At setup time an LSP can preempt existing LSPs with
hold priority level higher than it's setup priority level. 

Does anyone know if preemption is being using in MPLS networks? 

Girish

> -----Original Message-----
> From: Sudhakar Ganti [mailto:[email-masked]]
> Sent: Wednesday, June 20, 2001 8:29 AM
> To: [email-masked]
> Subject: Unreserved bandwidth in 
> "draft-katz-yeung-ospf-traffic-05.txt"
> 
> 
> Hello,
> 
> I have a question regarding the unreserved bandwidth sub-TLV
> in "draft-katz-yeung-ospf-traffic-05.txt". This TLV specifies
> unreserved bandwidth at each of the "eight priority" levels.
> What are these priority levels and map to what? Setup priority?
> Holding priority? CoS? The priority level attribute specified in
> RFC2702 is only relative importance level and does not specifiy
> any requirements for bandwidth reservations per-priority.
> 
> Therefore I would like to understand the meaning of the
> specification of this unreserved bandwidth per-prority.
> Appreciate any feedback on this. Thanks.
> 
> -Sudhakar
>