[mrtg] Re: MRTG Mapping Fractional T1

[Andrew Hull]

I have implemented several Cisco 1720 routers for our T1 customers. They 
have 2 integrated WIC slots for Cisco WIC-1DSU-T1 cards. Those 
interfaces are named Serial0 and Serial1.

So although the scenario you presented is certainly possible, it is not 
by any means an assumption to make.

Andy

Daniel J McDonald wrote:
> On Thu, 2005-10-13 at 10:34 -0400, Natalie Aloi wrote:
> 
>>I have a single interface - what I think may be happening is that one of
>>the channels is not taking traffic, also I am not completely sure that
>>the router is configured to show the different channels - I just know
>>only 16 of the 24 are being used for data the other 8 are being using
>>for phones.
> 
> 
> in a later post, you list the device as "serial1".  I assume it is not a
> built-in DSU, and that you are doing the add-drop function at an
> external CSU/DSU.  The Cisco router, in that case, has absolutely no
> data to work with.  YOu might be able to grab something from the CSU if
> it is SNMP enabled.
> 
> But the general case is that bits are sliced across all active channels,
> so it's not possible for one timeslot to not work and the T1 continue to
> function.
> 

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