In the event of a problem in Redundant Line Control Function operation, Redundant Line Control Function troubleshooting requires information about the problem to be collected.
When collecting the investigation material of a Redundant Line Control Function all together, see "6.1.1 Command to collect materials" or "6.1.2 Collecting Information by FJQSS (Information Collection Tool)."
In addition to the data collected by the material collection command, the following materials are necessary for troubleshooting a communication failure.
Network configuration diagram (information for IP and MAC addresses)
The investigation material for network devices (information for the ARP table, MAC learning table, STP, and routing table), which should be collected when a failure occurs.
A packet trace (information collected by the tcpdump command) for the NIC that the Redundant Line Control function uses, which should be collected when a failure occurs.
In addition, confirm that GLS and network devices are set correctly, referencing "Appendix H Troubleshooting".
