[c-nsp] cisco MPLS AutoBandwidth Allocator

[jack daniels]

If you don't have overlapping TE tunnels ? what is meaning of this

On Mon, Sep 27, 2010 at 10:04 PM, Peter Rathlev <peter at rathlev.dk> wrote:
> On Mon, 2010-09-27 at 09:21 +0530, jack daniels wrote:
>> I'm stuck in the understanding - does oit make sense to implement MPLS
>> AutoBandwidth in scenario where I have only 20 subnets max to be sent
>> on this Backbone.
>
> AutoBandwidth gives you the advantage of having the network recalculate
> LSPs every now and then. This can (partly) overcome the scenario where
> the specific time of establishing an LSP would have a negative effect on
> how it's built.
>
> If you use TE extensively and have one or more paths that are
> oversubscribed (via RSVP) then AutoBandwidth may be used to shift around
> some of the paths to (maybe) achieve a better utilisation.
>
> If you don't have overlapping TE tunnels there's no point in using
> AutoBandwidth. If you have plenty capacity (i.e. the sum of bandwidth of
> all tunnels is less than you "narrowest" link's capacity) there's also
> no need IMO.
>
> I your network is carefully engineered off-line and you never want the
> network to change you engineering you also don't need AutoBandwidth.
>
> --
> Peter
>
>
>