What is a characteristic of a Layer 2 loop?

Last Updated: Oct 9, 2020
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What is a characteristic of a Layer 2 loop?

  • Broadcast frames are forwarded back to the sending switch.
  • The Time-to-Live attribute of a frame is set to infinity.
  • Routers continually forward packets to other routers.
  • A switch is continually forwarding the same unicast frame.

Explanation: A Layer 2 loop occurs when broadcast frames are forwarded back to the sending switch via a backup link. Layer 2 frames do not have a Time-to-Live (TTL) attribute. Routers forward packets at Layer 3 (the network layer) not Layer 2.

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