[f-nsp] Foundry and Cisco UDLD different?

[Tim Durack]

You might find if you are able to configure Auto on the fiber ports
that Remote Fault Notification (RFN) will kick in with one-way link
scenarios.

Works for us on our aging fleet of HP4000s...

Tim:>

On Jan 7, 2008 12:50 PM, Christian Bering <CB at nianet.dk> wrote:
>
>
>
> Hi Mike et al,
>
>  >From: foundry-nsp-bounces at puck.nether.net on behalf of Mike Allen
>
>
>  >UDLD is what you are enabling by using the link-keepalive commands.  It
>  >references Uni-Directional Link Detection, and this is incompatible
> between
>  >vendors, as there is no universal standard.
>
>  Bugger.
>
>  There's some DWDM equipment in between the two boxes and we had a bad MUX
> that meant the signal was too weak in the one direction. The Foundry that
> received the signal saw the interface as down (-31 dBm) but was still
> sending out light so the remote end (Cisco) kept the interface up.
>
>  A situation where UDLD would have come in handy.
>
>  Oh well - thanks for the answers.
>
>  -Christian
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