HP Auto Port Aggregation Administrator's Guide HP-UX 11i v3 (766140-001, March 2014)
If the connection terminates abnormally or a network application appears
to hang, complete the following steps:
1. Test the network to determine whether the problem is on the local
host, remote host, or a host on the path between the two.
2. After you identify the host with the problem, do the following:
a. Confirm that the NIC is properly configured. Verify that the
broadcast address and address mask for the local host are
correct.
b. Make sure the local host's /etc/hosts file has the correct IP
address for the local host.
c. Make sure the cabling from the local host to the network is
intact and properly connected.
d. If connected over a local area network (LAN), verify that the
Address Resolution Protocol (ARP) entries are correct and that
the system is properly connected to the LAN.
e. Check the /var/adm/nettl.LOG000 file to see if there are
any errors (for example, cable disconnection messages). Format
the nettl.LOG000 file using the following command:
# netfmt -N nettl.LOG000
Problem still exists?
Report your problem to
HP. See “Reporting
problems ” (page 71).
Solving failover group problems
Verify that the switch is configured correctly. Refer to the appropriate
switch documentation to determine if the switch ports connected to the
server are configured correctly for link aggregation (trunking).
Verify that the failover group is configured by issuing the following
command:
# nwmgr -A all -c lanxxx
where xxx is the aggregate instance number.
If the failover group is not configured (Mode field is Not_Enabled), use
the System Management Homepage to configure it. For more information,
see “Configuring a failover group” (page 29).
NOTE: One of the ports in the failover group must have an IP address
configured on it.
Verify that the failover group is up by issuing the following command:
# nwmgr -A all -I xxx -S apa
where xxx is the failover group instance number.
If the failover group (LAN_MONITOR mode) is enabled, the APA State
is Up.
If the APA State is Down, do the following:
1. Check that all ports in the failover group are connected to the switch.
2. Verify that the link partner is configured for no trunking. Make any
changes, if necessary, and wait 10 seconds. Then, verify that the
failover group is up.
62 Troubleshooting HP APA