Troubleshooting guide

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Cisco PGW 2200 Softswitch Release 9.8 Operations, Maintenance, and Troubleshooting Guide
OL-0800-14
Chapter 3 Cisco PGW 2200 Softswitch Platform Operations
Daily Tasks
Media Gateway State
The GW_STAT field identifies the current state of the media gateway that is associated with each CIC.
Table 3-6 describes the various media gateway states.
Circuit Block Type
The BLK field identifies the type of circuit block that has been placed on the CIC. Blocked circuits are
not available for calls. Table 3-7 describes the valid circuit block types.
Table 3-6 Media Gateway States
State Description
CARRIER_FAILURE Individual CIC has failed. If this state is seen for all CICs associated with
a T1 or E1, it indicates that the associated T1 or E1 has failed. This state
is the only media gateway state that is checkpointed to the standby Cisco
PGW 2200 Softswitch.
CXN_IS The connection is in-service on the active Cisco PGW 2200 Softswitch.
CXN_OOS_ACTIVE The connection is out of service on the active Cisco PGW 2200 Softswitch.
CXN_OOS_STANDBY The connection is out of service on the standby Cisco PGW 2200
Softswitch.
GW_HELD The connection is being held at the media gateway. This state occurs
because of a command timeout or an unexpected response. This state is
only applicable to the active Cisco PGW 2200 Softswitch.
Table 3-7 Circuit Block Types
Type Description
COT_FAIL Blocked because a continuity test failed on the CIC.
GATEWAY Locally blocked on a switched system because of a media gateway
event. For example, a media gateway interface might fail, which causes
the transmission of an RSIP message; but, the associated CICs remain
in-service. As another example, this block type might occur when an
RSIP message is not acted upon because of a mismatch between the
MGCP hostname in the RSIP string and the host name that is
provisioned in the media gateway. If the associated switch does not
responding to group unblock messages, the CICs stay in the GATEWAY
circuit block state. Your CICs should be in this state when you bring up
the Cisco PGW 2200 Softswitch or media gateway. Once the associated
switch acknowledges the unblock message, the CICs transition from this
state. If the CICs stay in the GATEWAY circuit block state, troubleshoot
the problem with the media gateway.
INTERFACE_DISABLED Interface is disabled because the system received a CGB message or a
new service has been started, which is still in the install busy (INB)
state.
LOCAUTO Hardware blocking type—An external message that is generated by a
network element outside the media gateway blocked the CIC.