Network Protocol Manager for IS-IS supports the creation and analysis of system redundancy groups. Each group is composed of two or more routers and their interfaces.
By default, Network Protocol Manager for IS-IS does not create system redundancy groups. However, by using discovery hook scripts, you can configure Network Protocol Manager for IS-IS to create system redundancy groups after the initial discovery of the Network Protocol Manager for IS-IS routers.
The Network Protocol Manager Discovery Guide Supplement provides information about using discovery hook scripts.