Troubleshooting
Flowchart 1: Link Level Tests
Flowchart 1a Procedures
•Execute linkloop to remote host. If linkloop is successful, continue to Network Test. Else if linkloop fails note which error was returned.
•If loopback failed error = “Address has bad format” or “not an individual address” then correct the link level address with the proper station address format/value and repeat the Link Level Test.
•Otherwise, loopback failed because the remote host did not respond. Double check the remote host address and VLAN ID, or choose another remote host and
—Ensure VLAN IDs are the same by using lanadmin
—Ensure switches along the path are configured with the correct VLAN ID and marked “tagged” or “untagged” as appropriate.
—Ensure MTUs match as well.
—Ensure that link parameters for autonegotiation, flow control speed and duplexity are compatible.
—Ensure that the link is up. Refer to the documentation for each specific link for details.
If linkloop is successful, continue to Network Test. You may also want to contact the node manager of the remote that did not respond (if this was the case).
Appendix A | 61 |
