[c-nsp] Strange CDP Observation

[manolo hernandez]

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Felix Nkansah wrote:
> Hi Team,
> 
> One of my field engineers at a remote site has reported a problem to me, one
> which I find rather strange but yet to confirm for myself.
> 
> A Catalyst 2960 switch at the remote site is linked to a switch at a Central
> site via radio (bridged).
> 
> However, besides the fact that connectivity tests between the two sites are
> failing, his observation is that when he issues the "SHOW CDP NEI" command
> on the remote C2960 switch, he sees the switch itself appearing as its
> neighbor rather than the other switch at the central location which is
> typically the output he expected.
> 
> 
> I have personally never seen a Cisco device showing itself as it's own
> neighbor in a 'show cdp neighbor' output.
> 
> What do you know to be the cause of this problem?
> 
> Thanks.
> _______________________________________________
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> 

A loop would cause this issue.
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