[c-nsp] Loopback interface on 2950

Kristofer Sigurdsson ks at rhi.hi.is
Thu Aug 5 13:55:59 EDT 2004


Hi,

Pal, Laszlo, Thu, Aug 05, 2004 at 06:28:40PM +0100 :
> Hi,
> 
> When I try to set-up loopback interface on several Catalyst 2950 switch I
> got error messages. It looks like the command itself (interface loopback 0)
> exist in this version (12.1 something) of IOS but not fully implemented. Do
> you know anythig about this? Any bug related to this in 2950?

As the 2950 is a pure 2nd layer switch, you can only have one active 3rd layer
interface on it at any given time.  The most logical and usual option is to use
a VLAN interface - in fact, I don't think you can use any other type of 3rd layer
interface on them, but I may be wrong on that one. 

-- 
Kristófer Sigurðsson		   | Tel: +354 525 4103 / MSN: ks at rhi.hi.is
Netsérfræðingur/Network specialist | Reiknistofnun HÍ/University of Iceland


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