Which statement is correct about member interfaces when creating a LAG?

Question

Options

• AThe interface's MTU settings must match on all member interfaces.
• BThe interface's duplex settings and link speed must be the same on all member interfaces.
• CMember interfaces must all be allocated on the same chassis when using a Virtual Chassis.
• DMember interfaces must all be allocated on the same PFE.

• A
  8% (3)
• B
  85% (34)
• C
  3% (1)
• D
  5% (2)

Explanation

When creating a LAG (Link Aggregation Group) in Junos, the duplex settings and link speed must be the same across all member interfaces. A LAG combines multiple physical interfaces into a single logical interface to increase bandwidth and provide redundancy. All member links must act as a single cohesive unit. Interface Requirements: Duplex: All member interfaces must operate in the same duplex mode (either full-duplex or half- duplex). Mismatched duplex settings can cause performance issues, packet drops, or interface errors. Link Speed: All interfaces in the LAG must have the same link speed (e.g., all interfaces must be 1 Gbps or 10 Gbps). Mismatched speeds would prevent the interfaces from functioning correctly within the LAG. Configuration and Validation: Ensure that all member interfaces have identical settings before adding them to the LAG. These settings can be checked using the show interfaces command, and the LAG can be configured using: set interfaces ae0 aggregated-ether-options link-speed 10g set interfaces ge-0/0/1 ether-options 802.3ad ae0

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