[c-nsp] 1720 dot1q Problem

Marc Archer marc at archernet.id.au
Mon Jun 23 21:53:05 EDT 2008


I'm positive that the 1720 doesn't support sub-interfaces - I remember
running in to this about a year ago. You need the 1721 to get that support.

2008/6/24 Max Pierson <max at hbcorporate.com>:

> Hi List,
>
>
>
>                I am having some issues with a 1720 and dot1q
> sub-interfaces. When I try to configure encap dot1q etc on the f0.2
> subint, this is what I get....
>
>
>
> c1720#conf t
>
> c1720(config)#int f0
>
> c1720(config-if)#no shut
>
> c1720(config-if)#int f0.2
>
> c1720(config-subif)#encap dot1q 2
>
>                                                      ^
>
> % Invalid input detected at '^' marker.
>
>
>
> c1720(config-subif)#encapsul?
>
> encapsulation
>
>
>
> c1720(config-subif)#encapsulation ?
>
> % Unrecognized command
>
>
>
>
>
> I was working on 12.3.20 and noticed CSCsh16540
> <http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?metho
> d=fetchBugDetails&bugId=CSCsh16540&from=summary<http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsh16540&from=summary>>
>  "Router Crashes when
> encapsulation dot1Q", so I upgraded to 12.3.20a and still have the same
> issue.
>
>
>
> Do I need a different image, or am I missing something due to cluebit =
> 0   J
>
>
>
> TIA
>
> -nmp
>
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