NM1-T3 card in 3745 doesn't come up automatically

Unanswered Question
Nov 26th, 2007

I have a 3745 that has an ATM DS3 card in slot 1. We're adding a 2nd DS3 so I installed an NM1-T3 card in slot 2.

I was able to create the interface and configure it with no issues.

card type t3 2

controller T3 2/0

However here's my problem - if the interface goes down for any reason (manual shut/no shut, cables removed, reconnected, etc) the interface stays down/down until I go into the controller config and put the controller in loopback mode, and then take it back out of loopback mode. Then the interface and line come up. And it passes traffic with no problems.

I need to get it to come up automatically though, in case there's a power outage, telco problem, whatever.

I've confirmed the settings with the carrier and everything seems to match. Here are controller and interface configs (ip address removed).

sh controller t3 2/0

T3 2/0 is up.

Applique type is Subrate T3

No alarms detected.

MDL transmission is disabled

FEAC code received: No code is being received

Framing is C-BIT Parity, Line Code is B3ZS, Clock Source is Internal

interface Serial2/0

ip address xxx.xxx.xxx.xxx 255.255.255.252

encapsulation ppp

dsu bandwidth 44210

no cdp enable

sh int ser2/0

Serial2/0 is up, line protocol is up

Hardware is DSXPNM Serial

Internet address is xxx.xxx.xxx.xxx/30

MTU 4470 bytes, BW 44210 Kbit, DLY 200 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, LCP Open

Open: IPCP, crc 16, loopback not set

Keepalive set (10 sec)

Last input 00:03:20, output 00:00:10, output hang never

Last clearing of "show interface" counters 00:24:56

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 119000 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

160350 packets input, 206824924 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

55 packets output, 880 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

DSU mode 0, bandwidth 44210, real bandwidth 44210, scramble 0

Any help would be appreciated.

Thanks.

Christina

I have this problem too.
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