Managing Serviceguard 11th Edition, Version A.11.16, Second Printing June 2004

Troubleshooting Your Cluster
Troubleshooting Approaches
Chapter 8 341
• landiag is useful to display, diagnose, and reset LAN card
information.
• linkloop verifies the communication between LAN cards at MAC
address levels. For example, if you enter
# linkloop -i4 0x08000993AB72
you should see displayed the following message:
Link Connectivity to LAN station: 0x08000993AB72 OK
• cmscancl can be used to verify that primary and standby LANs are
on the same bridged net.
• cmviewcl -v shows the status of primary and standby LANs.
Use these commands on all nodes.