HP 2103R-CSDI Network, Connectivity, Problems, Use the, ■IP address, no shutdown, ■Subnet mask, Troubleshooting, ■Default gateway

Troubleshooting Network Connectivity Problems 5-3

Troubleshooting

Network

Connectivity

Problems

If the Edge Router module does not appear to be routing traffic properly on the network, it may indicate that there is no connection to the network.

Try performing one or more of the following troubleshooting actions:

■For ONline and ONcore Edge Router modules only, use the 3Com management interface (for example, ONline management module) to verify that the Edge Router module backplane port is set to the appropriate backplane network (channel).

■Using the Cisco terminal interface, verify that the following parameters are set correctly:

■IP address

■Subnet mask

■Default gateway

■Use the ping utility to confirm that there is network connectivity.

■Use the cisco>show interfaces ethernet 0 command to verify that the interface is up and running. This command reports Ethernet statistics that aid you in troubleshooting the network.

If the interface is down, you may need to use the Cisco configuration editor to issue the no shutdown command. The no shutdown command restarts a disabled interface.

■Verify that your router configuration is valid. Refer to the Cisco Systems Troubleshooting Internetworking Systems guide for more information.