Aruba Networks AirOS v2.3, User Manual

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Topology Example Four 241
Chapter 16
z
The priority of the VRRP instance on the local switch should be higher than that of
the master
z
The pre-emption on the local switch must be enabled to allow the local switch to take
over as master when it is functional.
z
AP and RF Settings
AP Settings
This topology has all the APs bootstrapping to the local switch on the corresponding
floor. This would mean that each of these APs need to know the Local switch address that
they need to bootstrap with (the lmsip).
In addition to this, a good practice is to configure the VLAN ID the clients associating to
the APs would be placed in to ensure uniformity among the clients associating to the L2
connected APs and L3 connected APs. All RF settings are configured on the master
switch.
Requirements
z
The configuration on the APs is the same for APs on the same floor but the vlan-id
and lms-ip differ for APs on the different floors. One approach is to number the APs
such that APs connected to local switch have the same building and floor ID, but the
APs on a different switch will have a different floor ID, ex. APs connected to Local1
have location ids 1.101.X, APs connected to Local2 have location ids 1.102.X and so
on. The global configuration are then applied to location 1.101.0, 1.102.0 etc. where 0
is a wildcard.
z
For each wildcard location (ex 1.101.0), the lmsip needs to be configured to ensure
that the APs bootstrap to the right local switch. Since redundancy is used, this
address
would not the switch address of the local but the VRRP instance address, ex.
10.1.101.1.10 for VLAN 101 on local 1
RF Settings
On the RF side three SSIDs are required under location 1.101.0, 1.102.0 etc. The SSIDs,
encryption, VLAN IDs and lms-ip settings as per the topology are listed below.
Parameters 1.101.0 1.102.0 1.103.0
Lms-ip (VRRP addresses) 10.1.101.10 10.1.102.10 10.1.103.10