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

1. To verify which link aggregates have been configured, enter either of the following
commands:
# lanscan
# lanscan -v
The Hardware Path column contains the link aggregates. Link aggregate names begin
with LinkAgg. The Hdw State column shows the link aggregate state. UP indicates the
link aggregate is operational. DOWN indicates the link aggregate was initialized but not
configured.
2. To verify that a link aggregate was formed correctly, use the link aggregate PPA from the
Crd In# column preceding step and enter the following command:
# lanadmin -x -i linkAggPPA
For example, to verify the physical ports associated with link aggregate 901, enter:
# lanadmin -x -i 901
3. To verify all physical ports in all configured link aggregates, enter:
# lanscan -q
This command lists the card instance number for each physical port and for the link
aggregates. Output similar to the following is displayed:
900 5 6 8 7
901
902
903
The preceding example shows that link aggregate 900 contains four ports: lan5, lan6,
lan8, and lan7.
If no link aggregates are formed, see Chapter 6 (page 67).
For more information on the lanscan command, see lanscan(1M). For more information on the
lanadmin command, see lanadmin(1M) and Chapter 4 (page 51).
What Happens During Start Up?
During the system boot-up, the following events occur:
1. HP APA software initializes
All the internal housekeeping initialization (for example, allocation of memory) for the
software is done. During this step, the default values are assigned for all the properties on
each port and link aggregate.
2. hp_apaportconf file is processed
Contains customization variables for each physical port. The features that can be set on each
port are Group Capability, Port Priority, and Configuration Mode. If no value is specified
for a given feature for a given port, the software assumes a default value for the same. The
port's mode is set at this stage.
3. hp_apaconf file is processed
The /etc/rc.config.d/hp_apaconf file contains customization variables for each link
aggregate. The features that can be set on each link aggregate are Load Balancing mode,
Hot Standby mode, and ports in a Manual link aggregate. The last feature allows manual
configuration of a link aggregate with the port(s) specified.
48 Configuring APA