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RUNKING
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3-139
lacp
Use this command to enable 802.3ad Link Aggregation Control Protocol
(LACP) for the current interface. Use the no form to disable it.
Syntax
lacp
no lacp
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet)
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.