[c-nsp] Serial interface stuck in "reset" status.

[Joseph Mays]

> Two obvious things are that the controller is shut down on one side in 
> your config

Sorry, I just grabbed that section of the config while I was showing that 
the serial interface stays in reset status even while the controller is show 
down, when the serial interface should change to down. As I showed in the 
later example, the serial interface stays in reset status even when the 
controller is up.

> The problem I am having is that the t1 controller seems to come up fine 
> and error free...

> ArmoryPl-AS5400#show controller t1 1/0:26
> T1 1/0:26 is up.

[...]

> ... but the serial interface is stuck in "reset" status.

> ArmoryPl-AS5400#show int Serial1/0:26:0
> Serial1/0:26:0 is reset, line protocol is down

I originally had the controller set to 64kbps channels, the change to 56 
kbps was an attempt to figure out what is going on. I've changed it back to 
64kbps channels now. Serial interface is still stuck.

controller T1 1/0:26
 framing esf
 channel-group 0 timeslots 1-20 speed 64

T1 1/0:26 is up.
  Applique type is Channelized T1
  No alarms detected.
  alarm-trigger is not set
  Version info of slot 1:  HW: 768, PLD Rev: 4
  Framer Version: 0x28

Serial1/0:26:0 is reset, line protocol is down
  Hardware is DSX1
  Description: Glass Doctor (K1.HCFU.417839..SC)
  MTU 1500 bytes, BW 1280 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation PPP, LCP Closed, multilink Closed
  Closed: BACP, loopback not set
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 00:05:18
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/0/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 960 kilobits/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 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
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets