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13-3
Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
OL-8723-19
Chapter 13 Network Troubleshooting
Troubleshooting a Network Failure
Verify the Configuration
Step 1
Determine if the problem is an Internet Protocol (IP) address or port configuration mismatch between
the ITP and the BTS 10200. Enter
show sctp-assoc id-<sctp-assoc-name>
on the BTS 10200 EMS.
Step 2
Enter
show cs7 sua
on the ITP.
Step 3
Verify that the remote transport service access point (TSAP) address and the remote port of the SCTP
association on the BTS 10200 is the same as the local IP address and the local port used by the ITP SCCP
user adapter (SUA). If the SCTP association is multi-homed, all of the IP addresses should be verified.
The following example displays properly matched configurations:
CLI>show sctp-assoc id=sctp_assoc3
ID=sctp_assoc3
SGP_ID=itp_2651_1
SCTP_ASSOC_PROFILE_ID=sctp_prof
REMOTE_PORT=14001
REMOTE_TSAP_ADDR1=10.89.232.48
PLATFORM_ID=FSAIN520
DSCP=NONE
IP_TOS_PRECEDENCE=FLASH
LOCAL_RCVWIN=64000
MAX_INIT_RETRANS=5
MAX_INIT_RTO=1000
STATUS=INS
ULP=XUA
Reply: Success: Entry 1 of 1 returned.
c2651-48#show cs7 sua
Sigtran SUA draft version: 14
SUA Local port: 14001 State: active SCTP instance handle: 2
Local IP address: 10.89.232.48
Number of active SUA peers: 8
Max number of inbound streams allowed: 17
Local receive window: 64000
Max init retransmissions: 8
Max init timeout: 1000 ms
Unordered priority: equal
SCTP defaults for new associations
Transmit queue depth: 1000 Cumulative sack timeout: 200 ms
Assoc retransmissions: 10 Path retransmissions: 4
Minimum RTO: 1000 ms Maximum RTO: 1000 ms
Bundle status: on Bundle timeout: 400 ms
Keep alive status: true Keep alive timeout: 10000 ms
Step 4
If there is no mismatch, proceed to Step 5. Otherwise, perform the following procedure:
a.
Correct the mismatch.
b.
Bounce the SCTP association on the BTS 10200.
c.
Repeat the
“Verify the Stream Control Transmission Protocol Association Status” section on
.