HP UX Auto Port Aggregation (APA) Software manual What Happens During Start Up?

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:

9005 6 8 7

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