[c-nsp] cisco MPLS AutoBandwidth Allocator
Mark Tinka
mtinka at globaltransit.net
Tue Sep 28 22:34:42 EDT 2010
On Tuesday, September 28, 2010 12:34:57 am Peter Rathlev
wrote:
> 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.
Completely agree.
Mark.
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