Matching T1/E1 Controllers up to Serial or ATM interfaces

[Daniel Mckibbin]

I was wondering what configuration is necessary to match an ATM interface to a T1/E1 or a Serial Interface to a T1/E1. I know for sure ATM 0/0/0 is indeed T1 0/0/0 in this case, but what commands can be used to confirm this? Is it possible that say T1 0/0/1  could be associated with ATM0/0/0. I have checked the show run interface  commands for both the controller and ATM interface and don't see how they are configured to be connected.

ATM0/0/0                   unassigned      YES NVRAM  up                    up

T1 0/0/0 is up.

  Applique type is Channelized T1

  Cablelength is long 0db

  Description: AT&T ID*********************** : LEC ID **********************

  No alarms detected.

  alarm-trigger is not set

  Soaking time: 3, Clearance time: 10

  AIS State:Clear  LOS State:Clear  LOF State:Clear

  Version info Firmware: 20071011, FPGA: 13, spm_count = 0

  Framing is ESF, Line Code is B8ZS, Clock Source is Line.

  CRC Threshold is 320. Reported from firmware  is 320.

  Data in current interval (870 seconds elapsed):

     0 Line Code Violations,0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

  Data in Interval 1:

     0 Line Code Violations,0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

  Data in Interval 2:

     0 Line Code Violations,0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

  Data in Interval 3:

     0 Line Code Violations,0 Path Code Violations

     0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

     0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs

Thanks,

Dan

[margalla]

Daniel.Mckibbin1 wrote:
I was wondering what configuration is necessary to match an ATM interface to a T1/E1 or a Serial Interface to a T1/E1. I know for sure ATM 0/0/0 is indeed T1 0/0/0 in this case, but what commands can be used to confirm this? Is it possible that say T1 0/0/1  could be associated with ATM0/0/0. I have checked the show run interface  commands for both the controller and ATM interface and don't see how they are configured to be connected.

IOS figures out it needs a serial interface for a T1 when you configure the channel-group and the interface numbering for the serial interface is derived from the slot/port number of the T1 and the channel-group number you used, e.g.

!

controller T1 0/0/0

framing ...

line code ...

channel-group 0 timeslots 1-8 speed 64

channel-group 2 timeslots 9-16 speed 64

!

interface Serial 0/0/0:0

...

!

interface Serial 0/0/0:2

...

!

If you put a PRI group there instead you get Serial0/0/0:23 because that is the D channel.

I'm not familiar with ATM but the same scheme should apply.

[Daniel Mckibbin]

Margalla Thanks,

So there is no way that say Serial 0/0/1 can be derived from T1 0/0/0 correct? Because these controller WIC's are physical. the Serial Interfaces derived are virtual correct? I see this remote all the time, but I don't see the physical cabling on the devices. What's the point of mapping a Controller to a different interface? I've seen devices where a show ip int brief lists say one or two gig connections, but when you issue a show controllers  there a multiple controllers being used on the device.

[gerald.suiza]

that is because most if not all interfaces have a controller..if you waht to see the controller of an interface isse the command sh controller [interface name]