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In a FabricPath topology, each device is identified by a switch ID, and all Layer 2 forwarding tables are built based on the reachability of the switch ID. Which protocol is used to assign the switch ID?
A. No protocol is used. The switch ID is always assigned manually.
B. The Dynamic Resource Allocation Protocol is used to assign the switch ID.
C. The Switch ID Assignment Protocol is used to assign the switch ID.
D. The switch ID is assigned based on the system ID of the device.
Correct Answer: B
Explanation/Reference:
Explanation:
Each device in the topology is identified by a switch-id and all Layer 2 forwarding tables are built based on reachability to each switch-id (as opposed to reachability to a MAC address). The switch-id is dynamically assigned via the Dynamic Resource Allocation Protocol (DRAP), so no manual allocation of switch-ids is required. However, it is possible to manually assign a SW-ID while a dynamic check for misconfiguration is performed.
Reference: http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/guide_c07-690079.html