Re: DS-TE Requirements - input sought on "Overbooking"

[Dave Cooper <dcooper@gblx.net>]

Francois,
comments below.

Francois Le Faucheur [flefauch@cisco.com] wrote:
> Hi,
> 
> The topic of "Overbooking" was discussed during the London TEWG meeting. It 
> seems to me like a good idea to try capture the main points on this in the 
> DS-TE Requirements document (which currently does not discuss overbooking 
> at all).
> 
> I believe the following points were made during the London discussion:
> 	- DS-TE should allow different overbooking ratios to be used for different 
> classes
> 	- DS-TE should allow these overbooking ratios to be different in different 
> parts of the network (e.g. higher overbooking ratios on high speed core 
> links, lower overbooking ratios on lower speed access links).
> 
> Do we agree it is worth adding something on Overbooking in the "DS-TE 
> Reqts" draft?

The concept of overbooking should be addressed in the requirements 
draft.  However, i am not sure if overbooking is necessary in the 
protocol extensions.  There are alternative ways to achieve over-
booking, including adjusting bandwidth of particular LSPs.  While
this doesn't allow you to overbook different parts of the network,
i question whether adding this justifies the increased complexity.

-dave


> 
> Are the two points above reasonable?
> 
> Thanks for your thoughts
> 
> Francois
> _________________________________________________________
> Francois Le Faucheur
> Development Engineer, IOS Layer 3 Services
> Cisco Systems
> Office Phone:          +33 4 97 23 26 19
> Mobile :               +33 6 89 108 159
> Fax:                   +33 4 97 23 26 26
> Email:                 flefauch@cisco.com
> _________________________________________________________
> Cisco Systems
> Domaine Green Side
> 400, Avenue de Roumanille
> 06 410  Biot - Sophia Antipolis
> FRANCE
> _________________________________________________________ 
>