HP Auto Port Aggregation Administrator's Guide for HP-UX 11i v1 and 11i v2 September 2008

For cost-based failover groups, edit the configuration files and verify
the port cost for both ports.
If the active port priority is greater than the intended port priority,
modify the priority value for the intended port (making it greater than
the current active port).
If the active port cost is less than the intended port cost, modify the
cost value for the intended port (making it less than the current active
port).
For more information, see “Editing Configuration Files for Failover
Groups” (page 107).
Ready ports
match connected
ports?
NO
YES
Verify that the ready ports are identical to the connected ports by using
the following command:
# lanadmin -x -i linkAggPPA
where linkAggPPA is the failover group instance number.
If the ready ports are different from the connected ports, some ports
are disconnected from the current active port. If the current active port
is not the intended active port, do the following:
1. Edit the configuration file and remove the port.
2. Issue the following commands:
# lanqueryconf -s
# lanapplyconf
For more information, see “Editing Configuration Files for Failover
Groups” (page 107).
Network
reachable?
NO
YES
If a remote host's network is not reachable, the following message is
displayed in response to the ping command:
network is unreachable
Complete the following steps:
1. Ensure that the network devices are configured properly on the
local host, using the netstat -i command.
2. Verify that the routing tables on the local host are correct, using
the netstat -r command.
Host known?
NO
YES
If a host is not known, the following message is displayed:
unknown host
Complete the following steps:
1. Verify that the user is trying to reach the remote host using a valid
host name.
2. Verify that the remote host is in another name domain and that
the user specified the full domain name.
3. If your site uses the Domain Name System (DNS) for
name-to-address translation, look in the /etc/nsswitch.conf
file to see if nis is specified as a service for the hosts database
entry. If it is not, add it. Also, verify that the DNS service has
information about the remote host.
4. If your site uses the NIS name service for name-to-address
translation, look in the /etc/nsswitch.conf file to see if nis
86 Troubleshooting HP APA