Command Usage
> Finish configuring a port trunk before you connect the corresponding network
cables between switches.
> You can configure up to six trunks, containing up to four ports as a dynamic
LACP trunk.
> All ports in the same trunk must consist of the same media type (i.e., twisted-
pair or fiber).
> The ports on both ends of trunk must be configured the same for speed and
flow control.
> The ports on both ends of trunk must also be configured for full duplex, either
by forced mode or auto-negotiation.
> If the target switch has also enabled LACP on the connected ports, the trunk
will be activated.
> If more than four ports attached to the same target switch have LACP enabled,
the additional ports will be placed in standby mode, and will only be enabled if
one of the active links fails.
> STP, VLAN and IGMP settings can only be made for the entire trunk via the
specified port-channel.
> A trunk formed with another switch using LACP will automatically be assigned
the next available port-channel id.
Example
The following shows LACP enabled on ports 11 - 13. Because LACP has also
been enabled on the ports at the other end of the links, the show interfaces sta-
tus port-channel 1 command shows that Trunk1 has been established.
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