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Inter chassis Redundancy License



Could anyone tell me that I am having 2 Cisco ASR 1002 and I want to do Inter chassis Redundancy between these devices.
As per Cisco doc I found that Inter chassis Redundancy is available for ASR1002 but it is for Firewall/NAT configuration Replication.
And it need Cisco IOS XE 3.7S for inter chassis Redundancy and we need this license FLASR1-FWNAT-RED(=) for Replication of Firewall/NAT configuration.

These are links where I found this:

Inter chassis Redundancy on ASR 1002

Firewall/nat replication

but I want to confirm that can it will replicate the IP data traffic as we doesn't have any Firewall/nat configuration or any other traffic except IP data.
If I purchase this license mentioned before than it will replicate the Data configuration or not.

we also have to run VRFs, BGP and QOS also on these devices.

Please let me know if anybody know this.

Thanks & Regards 
Rahul Chhabra
Network Engineer 
Spooster IT Services