Difference between s0/0/0 and s0/0/0:0?

michael-luo · ‎11-22-2013

On Cisco 29xx routers, I saw serial interface in different naming conventions (depending on the interface card, such as HWIC or VWIC).

Some are named s0/0/0. Some are named s0/0/0:0.

Why is the difference?

Thanks!

paul driver · ‎11-22-2013

Hello

HWIC - high rate wan interface card
VWIC - voice & wan interface card

Res

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Kind Regards
Paul

michael-luo · ‎11-22-2013

I know what HWIC and VWIC is.

My question is: why S0/0/0:0 versus S0/0/0? What does the column sign and the number following mean?

Richard Burts · ‎11-22-2013

For some of the cards you configure the controller (with things like specifying the time slots and giving the channel an identifying number). For these you have the serial0/0/0 and add the : to specify the appropriate channel number. For other cards you configure only the card and not the controller and for these there is no :

HTH

Rick

HTH

Rick