I believe the interfaces on the 2600/3600 series are numbered from right to
left but only slots with modules in them are counted. So, if you have a WIC
in the rightmost slot, it is--in your example--S2/0. If you then add the
other WIC, that one is S2/1.
If you leave the rightmost slot empty and put a WIC in the left slot, that
is S2/0.
They are numbered from right to left, and bottom to top, if applicable.
HTH,
John the Cheerful (no longer John the Grumpy) <g>
> Further to my post regarding 2600's a few days ago.
> I received an e-mail from Rick Thompson (Thanks) as below:
>
> >I have run across the same thing with the 3600
> >routers. It counts the first serial card as 0, no
> >matter if it is in slot 0 or 1.
>
> >Rick Thompson
>
> so I decided to drag a 3600 out and try a few things.
>
> Working with an NM1E2W:
>
> Inserted a WIC1T into slot w1 - This becomes S2/0 (Strange but agreeing
with
> previous findings).
> Configured S2/0 with IP address and WR MEM.
> Powered down and inserted another WIC1T into slot w0.
> The new WIC1T now becomes S2/0.
> With both interfaces configured I powered down and removed w0. The card
in
> w1 becomes S2/0 again.
>
> Is this a standard fact for all modular routers that the first card
inserted
> will become 0, no matter which slot it's in, or is this platform/IOS
> specific?
>
> Cheers,
>
> Gareth
>
>
>
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