HP Auto Port Aggregation Administrator's Guide for HP-UX 11i v3 September 2008

Problems (FEC Mode)”
(page 72) for
FEC_AUTO mode link
aggregates, or “Solving
Failover Group
Problems” (page 76) for
failover groups.
Solving Link Aggregate Problems (MANUAL Mode)
Link partner
configured?
NO
YES
Do the following:
• Verify that the switch is configured correctly with the appropriate
ports enabled. See the appropriate switch documentation to
determine if the switch ports connected to the server are
configured correctly for manual link aggregation (trunking) and
do not run FEC or LACP.
Link aggregate
configured?
NO
YES
Verify that the link aggregate is configured by issuing the nwmgr
command. Link aggregate names begin with lan900 and have the
subsystem and interface type as hp_apa.
If the link aggregate is not configured, use the System Management
Homepage to configure it. See “Configuring a Link Aggregate”
(page 36) for more information.
Link aggregate
enabled?
NO
YES
Verify that the link aggregate is enabled by issuing the following
command:
# nwmgr -v -c lanxxx
where xxx is the link aggregate instance number (for example, 900).
If the aggregate is enabled, the APA State is Up.
If the APA State is Down, do the following:
1. Check the cabling between the NIC and the switch.
2. Verify that the link partner is configured to run manual trunks.
Make any changes, if necessary. Then, verify that the link aggregate
is enabled.
3. Verify that all ports in the aggregate are set to the same MANUAL
mode by using the following command:
# nwmgr -A all -c lanxxx
where xxx is the link aggregate interface name (for example,
lan900).
If they are not, use the System Management Homepage to modify
the link aggregate. See “Modifying a Link Aggregate” (page 41)
for more information.
Correct ports in
link aggregate?
NO
YES
Verify the ports in the link aggregate by issuing the following
command:
# nwmgr -S apa
The Membership column shows the ports that compose the link
aggregate.
If the link aggregate contains ports that you do not want in the
aggregate, delete the ports by issuing the following command:
62 Troubleshooting HP APA