Troubleshooting guide

9-24
Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 9 Troubleshooting Cisco Media Gateways
Data Path Troubleshooting
Step 3 Enter this command a few times. The PacketCnt should increase and the PacketDrpCnt should stay the
same in normal case (for both ingress and egress).
Step 4 If various PacketDrpCnt increase, check the ethernet port configuration on SCC:
lsethlns (on SCC, list ether lines)
Line IP Address Subnet Mask Status Gateway Addr
========================================================
9.1 192.168.4.123 255.255.255.0 Active 192.168.4.124
lsethln 9.1 (on SCC, list ether line 9.1)
Ether Line : 9.1
MAC Address : 10.20.30.40.50.60
IP Address : 192.168.4.123
…
Duplex Mode : full
Step 5 If the configuration is correct, check on the statistics of the IP packets:
dspbimif 0 (on SCC, display BIM info on ether line 9.1)
received packets13456876
received packets with errors4508
……
received crc errors 4508
…..
sent packets18790870
Step 6 If the errors increase (enter this command a few times), check on the configuration of the BIM card,
ethernet cable, etc.
If there are no errors in the BIM card, the problems may reside on TCG/DSE/DSP.
Step 7 Provide the following information:
dspvoiceparm <slot>, <port>
dspvoicestat <slot>, <port> (enter this command a few times)
dspDcd <slot>, <port> (enter this command a few times)
c6Dump <dseNum>, <dspNum>
dspDspRsc <NSC slot>
lsevt 0 <NSC slot>
Step 8 If the connType from dspvoiceparm is not T1_VOIP (e.g. T1_EC_T1, etc), then the call is a TDM call.
Since no DSE and C6 DSP are involved in TDM calls, the problem is likely on some of the devices along
the data path. See the debugging guides for those devices for details. Be prepared to provide the
following information when reporting the problem:
• dspvoiceparm <slot >, <port>
• dspDspRscAll <NSC slot>