[c-nsp] Multiple E1s on 2821

[Brian Turnbow]

Peter Hicks wrote:
> All,
> 
> We have three E1 voice circuits on a 2821 - two from the same provider
> on on E1 0/0/0 and E1 0/0/1, and a third from a different provider on
a
> E1 0/1/0 - a separate VIC.
> 
> After fixing a broken fan on the router, the third E1 is experiencing
> slip seconds.  The other two are clean, and I suspect this is due to
the
> router being configure to use the clock from E1 0/0/0.  There is no
loss
> of service, however I'm keen to sort out this problem as it might
affect
> service in the future.
> 
> How can I resolve the problem?  Is it possible to use a different
clock
> for each VIC?

Unforutnatly it depends on your hardware.. The 2nd gen cards will do it
, the first gen cards no.
You need to add "independent" at the end of the clock source under the
controller.
I think the 2nd gens are vwic-2xxx IIRC....

Brian