Which function should be disabled on a Cisco router before enabling BFD echo mode?

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › Which function should be disabled on a Cisco router before enabling BFD echo mode?

Which function should be disabled on a Cisco router before enabling BFD echo mode?

  • ICMP redirect
  • ICMP rate limit
  • Split horizon
  • ICMP unreachable
  • ARP

Explanation: Before enabling BFD echo mode, the sending of ICMP redirect messages must be disabled using the no ip icmp redirect command. This is done to prevent the router from experiencing high CPU utilization when it receives and loops back BFD echo packets.

Related exam: Checkpoint Exam: Routing Manipulation

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