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Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
OL-8723-19
Chapter 10 Signaling Troubleshooting
Troubleshooting Signaling Alarms
Destination Point Code Congested—Signaling (24)
The Destination Point Code Congested alarm (minor) alarm indicates that the specified DPC is
congested. This alarm indicates that the DPC in the SS7 network is congested, i.e., is in a state where it
has received more traffic than it can handle. This should be a temporary state. If the type of network is
National, which is generally the case in the United States, there will also be a level of congestion
associated with the alarm.
The ITP should continually communicate with the DPC in the SS7 network to determine if congestion
has abated. If this alarm does not clear or keeps reappearing after clearing, contact your SS7 service
provider to determine why the DPC is congested.
The DPC Congested alarm is issued when the specified destination point code is congested. Monitor
event reports at the network level to determine if the traffic load to the specified DPC is too high on the
local end, or if the remote end is lagging in processing the traffic.
Trunk Locally Blocked—Signaling (36)
The Trunk Locally Blocked alarm (minor) indicates that the trunk is locally blocked. The primary cause
of the alarm is that a BLO or CGB message was sent on the specified CIC. No action is required.
Trunk Remotely Blocked—Signaling (40)
The Trunk Remotely Blocked alarm (major) indicates that the trunk is remotely blocked. The primary
cause of the alarm is that a BLO or CGB message was received on the specified CIC if it is SS7 trunk.
Issued when SERVICE OOS message is received for ISDN trunks. Issued when Reverse Make Busy
(rbz) signal is received for CAS operator trunk. No action is required. The system can be manually
recovered from this condition locally by controlling the effected trunks to UEQP state and back INS.
Auto State Change for Integrated Services Digital Network Trunk Group by
Media Gateway—Signaling (59)
The Auto State Change for Integrated Services Digital Network Trunk Group by Media Gateway alarm
(major) indicates that specified ISDN trunk group status was changed due to a media gateway operation.
The primary cause of the alarm is that the specified ISDN trunk group’s status was changed due to a
media gateway operation. To correct the primary cause of the alarm, monitor the event reports at the
network level to determine which media gateway caused the status change of the trunk group. Verify
that the gateway is reconfigured properly to support the usage of the trunk group.
Media Gateway/Termination Faulty—Signaling (63)
The Media Gateway/Termination Faulty alarm (major) indicates that a media gateway or termination has
gone faulty due to the detection of an unknown endpoint, unknown package type, and unknown event,
a hardware failure, or a general call agent error. The primary cause of the alarm is that a media gateway
or termination has gone faulty due to the detection of an unknown endpoint, unknown package type, and
unknown event (either a hardware failure or a general call agent error). To correct the primary cause of
the alarm, verify the proper operation of the media gateway specified. Place the termination
out-of-service and then back into service from the call agent.