Ether Channelの確認

Rack1SW1#sh etherchannel summary
Flags:  D - down        P - 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
        u - unsuitable for bundling
        w - waiting to be aggregated
        d - default port


Number of channel-groups in use: 3
Number of aggregators:           3

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
12     Po12(SU)         -        Fa0/13(P)   Fa0/14(P)   Fa0/15(P)
13     Po13(SU)         -        Fa0/16(P)   Fa0/17(P)   Fa0/18(P)
14     Po14(SU)         -        Fa0/19(P)   Fa0/20(P)   Fa0/21(P)