PCI Token Ring Administrator's Guide

Troubleshooting Token Ring
Diagnostic Flowcharts
Chapter 4 101
Flowchart 6 Procedures
A. Remote host entry in ARP cache? Using arp, check that an entry
exists for the remote host in your system's ARP cache. For example:
arp spiff
B. Remote host up? If there is no ARP cache entry for the remote host,
first check that the remote host is up. If not, the remote host has not
broadcast an ARP message, and that likely is why there is no entry
in the ARP cache.
C. Bring up remote host. Have the node manager of the remote host
bring that system up.
D. Entry complete? Perhaps there is an ARP cache entry, but it is
wrong or not complete.
E. Use arp to complete entry. Using arp, enter the correct Host
Name and Station Address. For more information, refer to the
arp(1M) on-line man page.
F. ping local host. Using ping, do an internal loopback on your own
system. In other words, ping your own system.
G. ping successful? If the internal loopback is successful, your system
is operating properly to the Network Layer (OSI Layer 3). In
addition, you know an ARP cache entry for the remote host exists on
your system. If this is true, the network interface or software on the
remote host is suspect. Start again with flowchart 5, but this time
ping from the remote host to your system. If the ping in Step F was
not successful, go to flowchart 1 to check your hardware installation.
H. Remote support arp? Have the node manager of the remote host
check whether the remote host supports arp(1M). If so, go to
flowchart 1 to check the hardware installation. If not, go to flowchart
5 and this time ping another remote host that supports arp(1M).