Establishing IS-IS Adjacencies

Zero Touch Fabric Configuration automatically triggers when the switch boots without a configuration file, the platform enables Intermediate System-to-Intermediate System (IS-IS) without a configured nickname or manual area. The system creates default backbone VLANs (B-VLAN) (4051 and 4052) and IS-IS manual area values. As a result, if you start two nodes in a network without an existing configuration file, then Zero Touch Fabric Configuration dynamically establishes an IS-IS adjacency between them.

The switch uses the Auto-sense functionality with the Zero Touch Fabric Configuration feature to establish the adjacency between two nodes. For more information about how and when the system tries to establish the adjacency, see Auto-sense Port States .