How to configure Aruba Mobility Master Layer 2 Redundancy

First, login to your MM (mobility conductor).MM/MD

Select the redundancy tab, and then click on layer 2 redundancy.

Define the VRRP ID. (A virtual router ID (VRID) that identifies the group of VRRP routers. You must specify the same ID across all virtual routers in the group.)

Add VIP addresses and priority. The default priority is 100.

depending on your requirement you can enable pre-emption. If you enable pre-emption, it will cause two time outages.

Make sure you select admin status UP.

Once you define these basic settings, click on “Submit” and “Deploy Change.”

How to configure Aruba Mobility Master Layer 2 Redundancy
How to configure Aruba Mobility Master Layer 2 Redundancy

Now you need to configure the same parameter on MM2 (conductor).

Now you need to configure the same parameter on MM2 (conductor).

Login to your MM2 (mobility conductor).

How to configure Aruba Mobility Master Layer 2 Redundancy

Log in to your MM2 (mobility conductor).

Now login to MM1 and select “conductor redundancy.”

How to configure Aruba Mobility Master Layer 2 Redundancy

same configuration we need to do on MM2. (change peer IP)

How to configure Aruba Mobility Master Layer 2 Redundancy

you can for wait 2 minutes.

Select a mobility conductor level, then select conductor redundancy, enable database sync, and define a time period as per your requirement.

How to configure Aruba Mobility Master Layer 2 Redundancy

You can verify the output using the below commands:

How to configure Aruba Mobility Master Layer 2 Redundancy

Show VRRP

How to configure Aruba Mobility Master Layer 2 Redundancy
How to configure Aruba Mobility Master Layer 2 Redundancy

Show database synchronize

How to configure Aruba Mobility Master Layer 2 Redundancy

you can use below command to initiate manual database sync.

How to configure Aruba Mobility Master Layer 2 Redundancy

Wireshark capture:

How to configure Aruba Mobility Master Layer 2 Redundancy

Failover.

How to configure Aruba Mobility Master Layer 2 Redundancy

You can also check for G-ARP packet as well.

Once the new master has been elected, it sends out a “gratuitous ARP.” Every host has an ARP table that ties IP addresses to Ethernet addresses. A gratuitous ARP is an unsolicited message with an IP address to Ethernet address mapping. All hosts receiving the gratuitous ARP update their tables, which effectively means that the virtual IP address is owned by a new device on the network.

Please comment below if you have any question.

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