Troubleshooting guide

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Cisco PGW 2200 Softswitch Release 9.8 Operations, Maintenance, and Troubleshooting Guide
OL-0800-14
Chapter 6 Troubleshooting the Cisco PGW 2200 Softswitch Platform
Resolving Bearer Channel Connection Problems
The response lists the properties that are associated with the selected component ID. The MML name
for the IP link is in the third column in the response. In the preceding example, “bh531-31” is the MML
name for the IP link.
Step 4 Repeat Step 3 for each component ID identified in Step 2.
Step 5 Start an MML session from the active Cisco PGW 2200 Softswitch and enter the
prov-rtrv:iplnk:name=" ip_link " command to determine the MML name for the signaling service that
is associated with the IP links identified in Step 3.
Where:
ip_link—MML name for an IP link that was identified in Step 3.
The system returns a message like the following:
Media Gateway Controller 2000-06-08 13:49:53
M RTRV
"session=active:iplnk"
/*
NAME = bh531-31
DESC = IP link-backhaul svc mgx8260 EAST
SVC = bh531-3
IF = enif1
IPADDR = IP_Addr1
PORT = 7007
PEERADDR = 10.15.26.20
PEERPORT = 7007
PRI = 1
SIGSLOT = 11
SIGPORT = 38
*/
The response lists the properties that are associated with your selected IP link. The MML name for the
signaling service that is associated with the link is in the SVC field. In the preceding example, bh531-3
is the MML name for the signaling service. Note the values in the SIGSLOT and SIGPORT fields. Use
these values later to determine whether the D-channel is defined on the media gateway.
Step 6 Enter the rtrv-dest: sig_serv command to retrieve the properties for the signaling service that was
identified in Step 5.
Where sig_serv is the MML name for a signaling service that was identified in Step 5.
The system returns a message like the following:
Media Gateway Controller 2000-06-08 13:50:26
M RTRV
"bh531-3:PKG=ISDNPRI,ASSOC=SWITCHED,PST=OOS,SST=UND"
Step 7 Log into the associated media gateway and determine whether the D-channel is defined. See the
documentation for the media gateway for information on how to verify whether the D-channel is defined.
For example, to determine whether a D-channel is defined for a Cisco MGX8260 media gateway, enter
the
lsdchan 12.39 command.
The values, 12.39, specify the D-channel. These numbers are determined by adding 1 to the SIGSLOT
and SIGPORT values identified in Step 5.
The media gateway responds with a message that indicates whether the D-channel is defined.
Step 8 Consult your provisioning records and determine whether the identified D-channel should exist.
If your provisioning records indicate that the D-channel should exist, proceed to Step 9.
If your provisioning records indicate that the D-channel should not exist, proceed to Step 10.