In some instances the administrator may be experiencing problems with connectivity in the underlying TCP/IP network. This applies to setting up connections between the P-7500 system and clients, or establishing a Secure Shell (SSH) connection to the P-7500 system for the purpose of entering the CLI. If the latter is the case, the administrator must use the serial port located on the rear panel of the P-7500 system to enter the CLI to perform troubleshooting.
The first status check to perform is to determine the health of the Ethernet interface(s) which connect the P-7500 system to the rest of the network. To do this, run the
show interface and show ip vrf msg-backbon User EXEC commands from the CLI.
In the output, the administrator can verify that the IP address and mask of the P-7500 Management VRF interface (that is, eth1) and Message Backbone VRF interface (that is, lag 1 in this example) are as expected, and that the interface status is displayed as enabled and running. The statistics displayed can also be used to diagnose the health of the interface.
Next, the administrator can run the show ip route User EXEC command to view all the IP route information in the global IP routing table on the P-7500 system.
The administrator can then enter the ping User EXEC command to troubleshoot and trace network connectivity.