Zhone Technologies 600 User Manual

3-16 

Model No.

Running Head

Refer to Appendix B in the System Reference Guide for further information on Error 
Messages regarding this card.

MCC card problems could indicate a number of possible causes, including:

Misconfigured IP parameter at the far end

Faulty cabling between the MCC LAN port and the LAN

T1 or E1 network failure

Improper network configuration

Improper MCC card configuration

Typically, a problem is indicated by the inability to route IP traffic to/from or through the 
MCC card. You can perform numerous tasks to isolate the trouble and clear it. When 
troubleshooting problems on IP communications through an MCC card, follow this general 
sequence:

1. If all IP traffic is affected, verify that the US/EUR jumper is correctly placed to match 

the US/EUR jumper on the chassis. The MCC card performs a self-test on power-up. 
A “healthy” card will have a green LED lit on the front panel. Do not proceed with 
further steps until a green LED is present.

2. Verify that the Ethernet Port (E) is actv and that the correct IP address (IPADDR) and 

NETMASK have been entered. At this point, attempt to “ping” (from the CPU card 
TCP/IP screen) the IP address of the MCC Ethernet port from another device on the 
LAN. Pressing N from this screen will display the Network Statistic registers for the 
Ethernet port. Analyze the information to determine the cause of the failure. Do not 
proceed with further steps until this ping is successful.

3. From the CPU Main Menu screen, go to the TCP/IP screen by pressing I. Verify that 

the options and addresses on the TCP/IP screen are correct. Press “P” (for ping) and 
enter the IP address of the MCC card Ethernet port.

4. If Step 3 is not successful, verify that the DEFAULT IP PORT is set to serv and that 

the DEFAULT IP SLOT is set to the chassis slot in which the MCC card resides (P1, 
P2, or P3). At this point, attempt to ping the card again by pressing P. Do not proceed 
until this ping is successful.

5. Verify that the T1 or E1 network is working properly by checking for current CGA-Red 

and CGA-Yellow alarms. If no CGA alarms are present that would affect IP traffic, 
continue with step 6.