Which three items are in the output of the show mclag brief command when using Enterprise SONiC?

Question

Options

• APeer Link, Peer Address, and VRRP Status
• BSystem MAC, Peer Address, and Keepalive Interval
• CSource Address, Peer Address, and AS Number
• DSystem MAC, Mclag System MAC, and System IP Address

• A
  3% (2)
• B
  87% (54)
• C
  2% (1)
• D
  8% (5)

Explanation

Option B is correct because show mclag brief in Enterprise SONiC displays a high-level summary of the MCLAG (Multi-Chassis Link Aggregation Group) session, which includes the System MAC (the shared MAC used across both chassis), Peer Address (the IP of the remote MCLAG peer), and Keepalive Interval (how frequently heartbeat messages are sent to detect peer liveness).

• Option A is wrong because VRRP Status is a separate redundancy protocol with its own show commands - MCLAG brief output doesn't include VRRP information.
• Option C is wrong because AS Number is a BGP concept, not part of MCLAG configuration or its brief output.
• Option D is wrong because while System MAC is real, "Mclag System MAC" and "System IP Address" are not the actual field names in the brief output - it conflates MCLAG fields with unrelated identifiers.

Memory tip: Think "S-P-K" - System MAC, Peer Address, Keepalive - the three things you need to confirm an MCLAG session is healthy: who you are (System MAC), who your partner is (Peer Address), and how often you check in (Keepalive Interval).

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