Troubleshooting network connectivity problems, Troubleshooting, Network – HP 2103R-CSDI User Manual

Page 63: Connectivity, Problems

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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.

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