[nsp] Can single DPT cards be used in GSR?

[Mikael Abrahamsson]

On Wed, 9 Apr 2003 sthaug at nethelp.no wrote:

> DPT cards in a GSR (OC48/SRP-SR-B) are normally used in pairs. We
> would like to run a connection based on a single 2.5 Gbps DWDM
> channel between two GSRs, using on DPT card in each GSR. Is this
> possible?

Yes. You have to use the card in failover-mode, stating "hw-module slot X 
srp" on an adjacent slot. This slot can then not be used for anything 
else as it's "reserved" for the "mate" SRP card (that you don't have).
 
> Connecting these cards in the straightforward manner results in
> side mismatch, because side A on both cards are connected. Is
> there a way around this without inserting an extra card and the
> accompanying mate cable?

I have used the above for a long time between two GSRs, works well.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se