ISR4451 Interchassis high availability

[sqambera]

Hello,

I am trying to configure Interchassis high availability based on the document in the link:

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nat/configuration/xe-3s/nat-xe-3s-book/iadnat-stateful-int-chass.html#GUID-9E84FAA2-B423-4C3F-AD8F-0F4F45DDF0D1

However, it throws following error when I configure command:

Router(config)#int gigabitEthernet 0/0/0
Router(config-if)#redundancy group 1 ip 10.10.1.1 exclusive decrement 20
% Please configure RII first

I have followed the document exactly as stated in it. Could anyone please guide.

Thanks,

Qamber

[leandro.brito]

I know this is an "old" topic but I also need to test the same feature - let me see what I got here....than I'll share with the results.