3.
On the server side, create the link aggregates or failover groups. Then, create the VLANs
over the link aggregate or failover group.
After a link aggregate is in use, you can create, modify, and delete VLANs over it. Users can
leave behind VLANs after the link aggregate or failover group has been cleared. If the link
aggregate or failover group has been cleared, users can neither create VLANs nor modify any
VLANs on the link aggregate or failover group. Users can only delete the VLANs.
See
Appendix D (page 105)
for examples of configuring VLANs over APA using HP Procurve
switches.
Verifying the configuration
The APA main page displays all configured link aggregates and failover groups, and any available
ports on the system. Alternatively, you can view all configured link aggregates by issuing the
following command:
# nwmgr -S apa
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.
4.
HP APA software starts
Cisco's FEC or IEEE 802.3ad LACP protocol is started on the ports that have been marked
as such. No action is taken for the ports that have Cisco's FEC or IEEE 802.3ad LACP turned
off.
5.
LAN Monitor ASCII file is processed
Process
/etc/lanmon/lanconfig.ascii
to create failover groups. If this file has not
been created, no action is taken.
After the system is up and running, you can distinguish a link aggregate from a normal
(unaggregated) port by running the
nwmgr
command. For more information, see
Chapter 5
(page 49)
.
38
Configuring APA
