[c-nsp] DS3 mux issues

[Larry Smith]

On Tue December 9 2008 15:28, Justin Shore wrote:
> We're staging a DS3 mux to aggregate T1s back to a PA-MC-2T3-EC in a
> 7206VXR (G2) running 12.4(15)T7.  I haven't channelized a T3 before so
> I'm feeling my way through this.  It looks to be relatively simple but
> I'm getting tripped up somewhere.  On the 7206:
>
> controller T3 1/0
>   cablelength 10
>   logging-events detail
>   t1 1 channel-group 0 timeslots 1-24
>   t1 2 channel-group 0 timeslots 1-24
>   t1 3 channel-group 0 timeslots 1-24
>   t1 4 channel-group 0 timeslots 1-24
>   t1 5 channel-group 0 timeslots 1-24
>   t1 6 channel-group 0 timeslots 1-24
>   t1 7 channel-group 0 timeslots 1-24
>   t1 8 channel-group 0 timeslots 1-24
>   t1 9 channel-group 0 timeslots 1-24
>   t1 10 channel-group 0 timeslots 1-24
>   t1 11 channel-group 0 timeslots 1-24
>   t1 12 channel-group 0 timeslots 1-24
>   t1 13 channel-group 0 timeslots 1-24
>   t1 14 channel-group 0 timeslots 1-24
>   t1 15 channel-group 0 timeslots 1-24
>   t1 16 channel-group 0 timeslots 1-24
>   t1 17 channel-group 0 timeslots 1-24
>   t1 18 channel-group 0 timeslots 1-24
>   t1 19 channel-group 0 timeslots 1-24
>   t1 20 channel-group 0 timeslots 1-24
>   t1 21 channel-group 0 timeslots 1-24
>   t1 22 channel-group 0 timeslots 1-24
>   t1 23 channel-group 0 timeslots 1-24
>   t1 24 channel-group 0 timeslots 1-24
>   t1 25 channel-group 0 timeslots 1-24
>   t1 26 channel-group 0 timeslots 1-24
>   t1 27 channel-group 0 timeslots 1-24
>   t1 28 channel-group 0 timeslots 1-24
>
<cut>

Here is an excerpt of one I have up and running: (much cut for obvious 
reasons)

controller T3 5/0
 framing m23
 clock source line
 cablelength 10
 t1 1 channel-group 0 timeslots 1-24
 t1 2 channel-group 1 timeslots 1-24
 t1 3 channel-group 2 timeslots 1-12
 t1 4 channel-group 3 timeslots 1-24
 t1 5 channel-group 4 timeslots 1-12
 t1 6 channel-group 5 timeslots 1-24
 t1 7 channel-group 6 timeslots 1-24
 t1 8 channel-group 7 timeslots 1-12
 t1 9 channel-group 8 timeslots 1-12
 t1 10 channel-group 9 timeslots 1-12
.....
 t1 1 clock source Line
 t1 2 clock source Line
 t1 3 clock source Line
 t1 4 clock source Line
 t1 6 clock source Line
 t1 7 clock source Line
 t1 8 clock source Line
 t1 9 clock source Line
 t1 10 clock source Line

...cut other bits.....


!
interface Serial5/0/1:0
 description XXXXXXXXXXXXXXXX
 bandwidth 1544
 ip address 1.2.3.4 0.0.0.0 (bogus)
 encapsulation ppp
 down-when-looped
 fair-queue
!
interface Serial5/0/2:1
 description YYYYYYYYYYYYYYYYYYY
 bandwidth 1544
 ip address 2.3.4.5 0.0.0.0 (bogus)
 encapsulation ppp
 down-when-looped
 fair-queue
!

On your virtual, what does it show:

sh int s5/0/2:1
Serial5/0/2:1 is up, line protocol is up
  Hardware is PA-MC-T3
  Description: YYYYYYYYYYYYYYYYYYYYYYY
  Internet address is 2.3.4.5/30
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 169/255, rxload 3/255
  Encapsulation PPP, LCP Open
  Open: IPCP, crc 16, loopback not set
  Last input 1d03h, output 00:00:00, output hang never
  Last clearing of "show interface" counters 00:00:02
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 2/1000/64/0 (size/max total/threshold/drops)
     Conversations  1/231/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1158 kilobits/sec
  5 minute input rate 20000 bits/sec, 56 packets/sec
  5 minute output rate 1025000 bits/sec, 91 packets/sec
     133 packets input, 5876 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     260 packets output, 391040 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions no alarm present
  Timeslot(s) Used: 1-24, subrate: 1536Kb/s, transmit delay is 0 flags
  non-inverted data

-- 
Larry Smith
SysAd ECSIS.NET
sysad at ecsis.net

-- 
Larry Smith
lesmith at ecsis.net