Hi Folks,
I have an MGCP gateway and its controller T1 0/0/0 stays TEI ASSIGNED for Layer 2 status. We tried changing the ISDN switch type, Line coding and Framing with no luck. I have few information and logs attached. Can you please suggest me for troubleshooting.
Show controller T1
T1 0/0/0 is up.
Applique type is Channelized T1
Cablelength is long 0db
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 FPGA Rev: 08121917, FPGA Type: PRK4
Framing is ESF, Line Code is B8ZS, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (208 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
Total Data (last 3 15 minute intervals):
0 Line Code Violations, 0 Path Code Violations,
1 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins,
1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 10 Unavail Secs
show interface serial 0/0/0:23
Serial0/0/0:23 is up, line protocol is up (spoofing)
Hardware is DSX1
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation HDLC, crc 16, loopback not set
Keepalive set (10 sec)
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters never
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 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 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
1370 packets output, 4110 bytes, 0 underruns
0 output errors, 0 collisions, 7 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
3 carrier transitions
debug isdn q921 & debug isdn q921 detail
109745: Jul 16 02:20:54.394: ISDN Se0/0/0:23 Q921: L2_EstablishDataLink: sending SABME
109746: Jul 16 02:20:54.394: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
109747: Jul 16 02:20:55.394: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
109748: Jul 16 02:20:56.394: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
109749: Jul 16 02:20:57.394: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
109750: Jul 16 02:21:04.402: ISDN Se0/0/0:23 Q921: L2_EstablishDataLink: sending SABME
109751: Jul 16 02:21:04.402: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
109752: Jul 16 02:21:05.402: ISDN Se0/0/0:23 Q921: User TX -> SABMEp sapi=0 tei=0
detail
108671: Jul 16 01:13:24.679: ISDN Se0/0/0:23 Q921d: handle_mail: setting pkt to NULL
108672: Jul 16 01:13:24.679: ISDN Q921d: isdn_l2d_srq_process: QUEUE_EVENT
108673: Jul 16 01:13:24.679: ISDN Q921d: isdn_l2d_srq_process: event_count 1
108674: Jul 16 01:13:25.679: ISDN Q921d: l2_timer: timer (0x2312C250), timer_type (0x1240)
108675: Jul 16 01:13:25.679: ISDN Q921d: isdn_l2d_srq_process: QUEUE_EVENT
108676: Jul 16 01:13:25.679: ISDN Q921d: isdn_l2d_srq_process: event_count 1
108677: Jul 16 01:13:26.679: ISDN Q921d: l2_timer: timer (0x2312C250), timer_type (0x1240)
108678: Jul 16 01:13:26.679: ISDN Se0/0/0:23 Q921d: S5_T200_EXPIRY: dlcb->N200=3 dlcb->RC=1
108679: Jul 16 01:13:26.679: ISDN Q921d: isdn_l2d_srq_process: QUEUE_EVENT
108680: Jul 16 01:13:26.679: ISDN Q921d: isdn_l2d_srq_process: event_count 1
108681: Jul 16 01:13:27.679: ISDN Q921d: l2_timer: timer (0x2312C250), timer_type (0x1240)
108682: Jul 16 01:13:27.679: ISDN Se0/0/0:23 Q921d: S5_T200_EXPIRY: dlcb->N200=3 dlcb->RC=2
108683: Jul 16 01:13:27.679: ISDN Q921d: isdn_l2d_srq_process: QUEUE_EVENT
108684: Jul 16 01:13:27.679: ISDN Q921d: isdn_l2d_srq_process: event_count 1
Configuration of Controller and Serial interface
controller T1 0/0/0
cablelength long 0db
pri-group timeslots 1-24 service mgcp
interface Serial0/0/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-ni
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
