From: Eugene Ward (eward15@juno.com)
Date: Wed Jul 27 2005 - 20:15:32 GMT-3
Bob,
I thought that if a layer 1 problem occurred (fiber break on one side), that the port would transition down as expected. I also thought UDLD was used when the Layer 1 is up and Layer 2 is transmitting in one direction. Any thoughts?
Eugene Ward
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John:
Thanks for the reply. I tried your suggestion, but I still get the same
results.
I used the udld reset command and got the reply that no ports were disabled
by UDLD.
cat3550-1#udld reset
No ports are disabled by UDLD.
Bob
----- Original Message -----
From: "Sheahan, John" <John.Sheahan@priceline.com>
To: "Bob Nelson" <nelsnjr@cox.net>; <ccielab@groupstudy.com&g
t;
Sent: Wednesday, July 27, 2005 1:13 PM
Subject: RE: UDLD
UDLD ensures the port disables when one piece of fiber is disconnected.
What you might want to do is disable UDLD and try the same experiment.
You might then see the port stay active longer than with UDLD enabled.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Bob Nelson
Sent: Wednesday, July 27, 2005 3:40 PM
To: ccielab@groupstudy.com
Subject: UDLD
Wondering if any has been able to test UDLD shutting down an interface
on
fiber ports.
I have it configured and it says enabled, but when I pull one-half of
the
connection
to the switch, the port just goes down normally.
I have tried both normal and aggressive modes and have even tried
reversing
the transmit and receive plugs, but the port seems to just go down
normally
with no indication of UDLD involvement.
Any ideas?
Thanks
Bob
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