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Troubleshooting a Network Failure
Verify the Internet Protocol Transfer Point Message Transfer Part 2 Serial
Interface
To resolve problems with the ITP MTP2 serial interface, perform the following steps:
Step 1
To display the state of the ITP MTP2 serial interface, enter show int serial <number> on the ITP.
Information similar to the following will be displayed:
c2651-48#show int serial 0/0:0
Serial0/0:0 is up, line protocol is up
Hardware is PowerQUICC Serial
Description: link_to_mgts_lic_10
MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec,
Encapsulation SS7 MTP2, loopback not set
Keepalive not set
Last input 33w5d, output 00:00:31, output hang never
Last clearing of "show interface" counters 33w5d
Queueing strategy: fifo
Output queue 0/40, 0 drops; input queue 0/75, 23 drops
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
Timeslot(s) Used:1, SCC: 0, Transmitter delay is 0 flags
If the interface is up and the line protocol is up, continue to the next section.If there is a problem,
Step 2
determine where the problem exists, as follows:
a.
b.
c.
After correcting the problem, continue to the next section.
Step 3
Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
13-6
reliability 255/255, txload 1/255, rxload 1/255
1912000 packets input, 9866017 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 17 giants, 0 throttles
3356 input errors, 128 CRC, 2641 frame, 0 overrun, 0 ignored, 587 abort
1163961 packets output, 13234709 bytes, 0 underruns
0 output errors, 0 collisions, 55 interface resets
0 output buffer failures, 0 output buffers swapped out
31 carrier transitions
If the interface is down, shut down the interface manually.
If the line protocol is down, the problem exists in cabling or in the MTP2 layer.
If both the interface and the line protocol are down, there is a hardware failure or the interface is
manually shutdown.
Chapter 13
Network Troubleshooting
OL-8723-19
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