200-150 Question #163: Real Exam Question with Answer & Explanation

The correct answer is A: Layer 2 port of the opposite fabric interconnect. In a Cisco UCS two-FI cluster, the L1 port on one fabric interconnect cross-connects to the L2 port on the opposite fabric interconnect to form the cluster peer link.

Cisco Data Center Unified Computing

Question

To witch component do you connect the Layer 1 port of a fabric interconnect?

Options

ALayer 2 port of the opposite fabric interconnect
Bout-of band management network
CLayer 2 port of the same fabric interconnect
DLayer 1 port of the opposite fabric interconnect

Explanation

In a Cisco UCS two-FI cluster, the L1 port on one fabric interconnect cross-connects to the L2 port on the opposite fabric interconnect to form the cluster peer link.

Common mistakes.

B. The out-of-band management network connects to the dedicated MGMT0 Ethernet port on the fabric interconnect, not to the L1 cluster port.
C. The L1 port connects to a port on the opposite fabric interconnect, not to any port on the same FI; the cluster link must span both physical FI units.
D. The correct pairing is L1 to L2 (cross-connection), not L1 to L1; connecting two L1 ports together does not conform to the Cisco UCS cluster cabling specification.

Concept tested. Cisco UCS fabric interconnect cluster port cabling

Reference. https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/hw/fabric-interconnect-installation/b_Cisco_UCS_6400_FI_Install_Guide/b_Cisco_UCS_6400_FI_Install_Guide_chapter_0100.html

Topics

#fabric interconnect#UCS connectivity#Layer 1 port#FI clustering

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