500-920 · Question #4
Which two ports on a pair of Cisco Fabric Interconnects must be properly cabled for the pair to form a cluster? (Choose two )
The correct answer is A. L1 > L1 C. L2 > L2. Cisco UCS Fabric Interconnects use two dedicated cluster ports - L1 and L2 - to form a high-availability pair, and each port must connect to its matching counterpart on the peer FI: L1 to L1, and L2 to L2. These symmetrical connections establish the cluster heartbeat and synchron
Question
Which two ports on a pair of Cisco Fabric Interconnects must be properly cabled for the pair to form a cluster? (Choose two )
Options
- AL1 > L1
- BL1 > L2
- CL2 > L2
- DL2 > L1
How the community answered
(34 responses)- A94% (32)
- B3% (1)
- D3% (1)
Explanation
Cisco UCS Fabric Interconnects use two dedicated cluster ports - L1 and L2 - to form a high-availability pair, and each port must connect to its matching counterpart on the peer FI: L1 to L1, and L2 to L2. These symmetrical connections establish the cluster heartbeat and synchronization links that allow the two FIs to operate as a unified system.
Why B and D are wrong: Crossing the ports (L1→L2 or L2→L1) does not produce a valid cluster link - the FIs expect same-to-same connections, and mismatched cabling will prevent the cluster from forming.
Memory tip: Think "match the label" - L1 always shakes hands with L1, and L2 always shakes hands with L2. If the numbers don't match across the cable, the cluster won't come up.
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