You receive a Marvis Action that reports "Port negotiation mismatch detected on EX3400-48P." In this scenario, which two steps should you take to resolve the issue? (Choose two.)

Question

Options

• AVerify that both switch ports are set to auto-negotiate speed and duplex.
• BForce the connected device port to half-duplex mode.
• CReplace the switch uplink SFP module.
• DCheck that the connected device supports 802.3 autonegotiation.

• A
  76% (39)
• B
  16% (8)
• C
  8% (4)

Explanation

A port negotiation mismatch occurs when the local and remote interfaces fail to agree on common speed or duplex settings. Marvis Wired Assurance automatically detects this by analyzing telemetry from the switch's physical interfaces. You can resolve this by ensuring auto-negotiation is enabled on both ends (A) and verifying the peer device supports the 802.3 autonegotiation standard (D). Manually forcing half-duplex or replacing hardware is unnecessary unless the hardware is faulty. "Marvis Wired Actions correlate interface negotiation errors with LLDP neighbor data to pinpoint mismatched configurations, helping administrators quickly verify speed/duplex compatibility and 802.3 autonegotiation

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