Aruba Networks AirOS v2.3, User Manual

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Configuring Redundancy 29
Chapter 3
1 Configure the interface on the master switch to be a trunk port with 1, 2… n
being member VLANs. Refer to the “Configuring Network Parameters” for
more details on how to configure this.
2 Collect the following data before configuring master switch redundancy.
z
VLAN IDs on the switches corresponding to the VLANs 1, 2…n shown in the topol-
ogy above.
z
Virtual IP addresses that has been reserved to be used for the VRRP instances.
3 Connect to the switch CLI using Telnet or SSH. After logging into the switch,
enter the global configuration mode.
4 Use the following steps to configure VRRP on the master and local switches
respectively. Note: the master switch will be configured for a number of VRRP
instances (equal to the number of local switches the master is backing up).
Command Explanation
Expected/Recommended
Values
Step 1
vrrp
vrrp-id Creates the VRRP
instance. It is recommended to configure
the VRRP ID to be the same as
VLAN ID on which the
instance runs for easier
administration and
maintenance.
Step 2
vlan
vlan-id Associates the VRRP
instance with a VLAN. VLAN ID from step 2 above.
Step 3
ip address
ip-address Virtual IP address for
the VRRP instance Virtual IP address from step 2
above.
Step 4 Priority priority-value Priority of the VRRP
instance that is used in
the election of the
master . By default, the
value is 100.
The following are the
recommended values for the
priority on the master and local
switches:
Master: 100
Local: 110.
Step 5 Preempt Enable preemption