HSRP - best practice for change group ID on interface

[dani.z]

Hello,

i have got two Cisco routers connect with HSRP configuration. On one interface of these routers i need change group ID due to change virtual MAC address. What is the best practise for this change ?  I want to avoid outage on other interfaces.

Note: I can shutdown interface where the group ID will be changed.

I was thinking about this procedure:

Remove interface from tracking on both routers.

On standby router shutdown this interface and change group ID.

On active router shutdown this interface and change group ID.

On active router - enable this interface.

Enable interface on standby router

Add interface to tracking on both roters.

Is it ok ?

[balaji.bandi]

I would suggest to take maintenance window and change both same time, changing one side may not have effect since Group IP changing, that need to match both the side. Other wise they become Active / Active on different GROUP (may have other side effects).