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From the “show etherchannel summary” command, what does the u or U flag signify?

From the "show etherchannel summary" command, what does the u or U flag signify?

  • 1- U – in use
  • 2- u – unsuitable for bundling
  • 3- u-suspended
  • 4- U-waiting to be aggregated



  • The correct answer is:

  • 1- U – in use 
  • 2- u – unsuitable for bundling 
  • The “U” is in use and “u” is unsuitable for bundling

    SwitchToCCNA# show etherchannel summary
    Flags: D – down P – bundled in port-channel
    I – stand-alone s – suspended
    H – Hot-standby (LACP only)
    R – Layer3 S – Layer2
    U – in use f – failed to allocate aggregator

    M – not in use, minimum links not met
    u – unsuitable for bundling
    w – waiting to be aggregated
    d – default port

    Number of channel-groups in use: 27
    Number of aggregators: 27

    Group Port-channel Protocol Ports
    ——+————-+———–+———————————————–
    1 Po1(SU) LACP Fa0/5(P) Fa0/6(P) Fa0/7(P) .

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