Re: [OT]Creating a unidirectional link failure scenario

UDLD doesn't work with L3 interfaces? Might want to check on UDLD.

Regards,
 Joe Sanchez

On Apr 5, 2012, at 8:00 AM, sundeep sadhwani <sundeep.sadhwani_at_gmail.com> wrote:

> Thanks for the reply.however i am using gig at the 4500 side i see that the
> port is down at the 4500 side.
>
> I have faced this issue in the live network where we have to change the
> fibre cable as both the interfaces were up and bcoz of cdp we came to know
> that there is unidirectional link failure as 4500 was able to see GSR but
> GSR was unable to see 4500. we cant use UDLD in this scenario as GSR
> interface is layer 3.
>
> Regards
> Sundeep
>
> On Thu, Apr 5, 2012 at 8:38 PM, Carlos G Mendioroz <tron_at_huapi.ba.ar> wrote:
>
>> What do you mean by simulate ? Cause you have already done that
>> by removing one fibre!
>>
>> In a 10/100 ethernet you can cut one wire. No such luck on giga.
>> In dynamips, you can block one stream or point to some unused port.
>>
>> -Carlos
>>
>>
>>
>> sundeep sadhwani @ 05/04/2012 06:49 -0300 dixit:
>>
>>> Hi all
>>>
>>> I would need your suggestions in creating an unidirectional link failure
>>> scenario.
>>>
>>> i have two devices connected back to back GSR-----4500 through fibre. I
>>> have removed the Rx of the fibre from the GSR end. At the GSR end if i
>>> disable the negotiation the link interface on GSR comes up however if i
>>> disable the negotiation on 4500 port, the interface is still down.
>>>
>>> Any suggestion of simulating this would be appreciated.
>>>
>>> Regards
>>> Sundeep
>>>
>>>
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>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
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Received on Thu Apr 05 2012 - 08:48:45 ART