Troubleshooting204515-C 4-7Installation-Related IssuesEthernet networks tend to be fairly simple, but they can still have problems thattake time to resolve. The most common problems are associated with the actualnetwork wiring.If you have problems with a newly established network (initial setup), the troubleis most likely related to cabling or addressing. If the network has been operationalfor an extended period and is now beginning to have problems, the trouble isprobably related to recent additions or changes.AddressesRemember that each Passport 8100 module or Passport 8000 Series switch has amedia access control (MAC) station address and an IP address. The MAC stationaddresses are unique because each address contains the Nortel Networksmanufacturer ID and node ID codes.A valid IP address is not required for normal switching operation or if you aremanaging the switch from a console. However, for management over the network(SNMP or Telnet session), a valid IP address is required.You can change the IP address of the unit to match your own network addressingstructures. Make sure that the IP address of the Passport 8100 module or Passport8000 Series switch is unique in your network. You can change the IP addressusing the config ip address command (refer to “Assigning an IP Address to theManagement Port” on page 3-5). You will need to set a valid IP address if youintend to use network management with SNMP or Telnet.
