[c-nsp] 1720 dot1q Problem

[Max Pierson]

I just found the doc on Cisco's site that says that same thing. CLI is
misleading when they have the "encapsulation" option but you can't use
it, even though there are different images for the 1720 and 1721 in the
IOS planner. Guess I've griped enough for today. Thanks for the on and
off list replies.

 

-nmp

 

From: Devin Kinch [mailto:devinkinch at gmail.com] 
Sent: Monday, June 23, 2008 2:53 PM
To: Max Pierson
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 1720 dot1q Problem

 

Not supported on the 1720 (hardware limitation of the Ethernet chipset).
I have one in my lab, and this has always bugged me, especially since
the NM-2E2W modules (only 10/half) do support dot1q.

On Mon, Jun 23, 2008 at 1:36 PM, Max Pierson <max at hbcorporate.com>
wrote:

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?metho
d=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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