From: Larson, Chris (CLarson@usaid.gov)
Date: Tue Apr 22 2003 - 14:41:12 GMT-3
It is policy here to enable UDLD on all switches. A uni-directional link can
create real problem for STP as STP itself has no way to detect or deal with
a uni-directional link. I am not sure why you would be getting a
uni-directional link like that, but I do not think UDLD will fix it. What
UDLD will do is detect the condition and disable the port.
> -----Original Message-----
> From: Brennan_Murphy@NAI.com [SMTP:Brennan_Murphy@NAI.com]
> Sent: Monday, April 21, 2003 4:16 PM
> To: ccielab@groupstudy.com
> Subject: RE: Gig interface stays Up Up on 7606 --- Use UDLD?
>
> Cisco is recommending UDLD for this. Anyone familiar
> and used it successfully in similar circumstances?
>
> -----Original Message-----
> From: Murphy, Brennan
> Sent: Monday, April 21, 2003 9:17 AM
> To: ccielab@groupstudy.com
> Subject: OT: Gig interface stays Up Up on 7606
>
>
> I've got a couple routers running HSRP on each of their
> respective Gig interfaces. I've been having problems with
> one of them where when its the active interface, it will
> somehow lose it's ability to transmit but will still be able
> to receive. This seems to cause the interface to stay
> up/up and so it doesnt failover to the other router.
> This is on a 7606.
>
> Anyone ever seen this before? I cant figure out why
> the keepalives dont take the interface down. Is there
> something I can do to ensure it goes down when this
> happens? Some special interface command?
>
> -BM
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