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HPE6-A86 · Question #33

A switch port is up, but no traffic is being forwarded. What could be a possible reason?

The correct answer is A. The port is in a blocking state due to STP. The Spanning Tree Protocol (STP) is used to prevent loops in a network by designating one active path and blocking redundant paths. If a switch port is up but no traffic is being forwarded, it's likely that the port is in a blocking state due to STP. This means that STP has…

Troubleshooting Basic Switching Issues

Question

A switch port is up, but no traffic is being forwarded. What could be a possible reason?

Options

  • AThe port is in a blocking state due to STP
  • BThe IP address is incorrect
  • CThe switch does not support VLANs
  • DThe switch is running in LACP passive mode

How the community answered

(28 responses)
  • A
    75% (21)
  • B
    7% (2)
  • C
    14% (4)
  • D
    4% (1)

Explanation

The Spanning Tree Protocol (STP) is used to prevent loops in a network by designating one active path and blocking redundant paths. If a switch port is up but no traffic is being forwarded, it's likely that the port is in a blocking state due to STP. This means that STP has determined that the port is part of a redundant path and has blocked it to avoid network loops.

Topics

#STP#blocking state#port forwarding#spanning tree

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