Which statement is true regarding the use of PAgP to create EtherChannels?

Last Updated on October 29, 2020 by Admin

Which statement is true regarding the use of PAgP to create EtherChannels?

  • It requires full duplex.
  • It is Cisco proprietary.
  • It requires more physical links than LACP does.
  • It increases the number of ports that are participating in spanning tree.
  • It mandates that an even number of ports (2, 4, 6, etc.) be used for aggregation.
    Answers Explanation & Hints:

    PAgP is used to automatically aggregate multiple ports into an EtherChannel bundle, but it only works between Cisco devices. LACP can be used for the same purpose between Cisco and non-Cisco devices. PAgP must have the same duplex mode at both ends and can use two ports or more. The number of ports depends on the switch platform or module. An EtherChannel aggregated link is seen as one port by the spanning-tree algorithm.

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