[c-nsp] redundant link

[Roy]

If the switches are both Ciscos at each end, I think you can run UDLD.

http://www.cisco.com/en/US/tech/tk866/tsd_technology_support_sub-protocol_home.html

Roy

Dave Temkin wrote:

>If all you want is simple, then set up RIP to do the failover.  If not,
>EIGRP.  Unfortunately cheap TX/FX converters will do this.  The better
>ones will transfer link state from end to end.
>
>-Dave
>
>On Wed, 17 Aug 2005, Rey Martin wrote:
>
>  
>
>>Hi there..
>>
>>im setting up 2 redundant link for our customer, using 2 100fx connection.
>>however both end using 10/100TX to 100FX converter because both end devices
>>has only 100TX port available
>>
>>the only reason we use 100FX between 2 device (cat 3550 and 3600)
>> was because of the distance (400m+)
>>
>>I thought the setup will be straight forward, 2 identical static route with
>>different administrative distance.
>>however when we unplug the cat5 cable on one end, the other end interface
>>line protocol still shows as "UP"
>>(because of the 100TX to 100FX converter) so the failover failed.
>>
>>i was thinking to use object tracking (icmp echo),
>> but the "ip route x.x.x.x  y.y.y.y track z" command seems not available yet
>>for cat 3550.
>>although the other commands seems available.
>>
>>cat3550(config)#ip route 1.1.1.1 255.255.255.255 2.2.2.2 ?
>>  <1-255>    Distance metric for this route
>>  name       Specify name of the next hop
>>  permanent  permanent route
>>  tag        Set tag for this route
>>  <cr>
>>
>>any help would be highly appreciated!!
>>Thanks
>>
>>
>>rey
>>
>>    
>>