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LACP Commands:
Dell™ PowerEdge™ 1655MC Integrated Switch User's Guide

lacp

Link Aggregation Control Protocol (LACP) can be used to automatically negotiate a trunk link between this switch and another network device.

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 port trunks before you connect the corresponding network cables between switches.
• You can configure up to two trunks, with two, three or four ports as a dynamic LACP trunk.
  
• 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.
• STP, VLAN and IGMP settings can only be made for the entire trunk via the specified port-channel.
• Any 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 7 - 10. Because LACP has also been enabled on the ports at the other end of the links, the show interfaces status port-channel 1 command shows that Trunk1 has been established.

(config)#interface ethernet 1/7 (config-if)#lacp (config-if)#exit (config)#interface ethernet 1/8 (config-if)#lacp (config-if)#exit (config)#interface ethernet 1/9 (config-if)#lacp (config-if)#exit (config)#interface ethernet 1/10 (config-if)#lacp (config-if)#exit (config)#exit #show interfaces status port-channel 1 Information of Trunk 1  Basic information:   Port type: 1000t   Mac address: 00-00-e8-00-00-0b  Configuration:   Name:   Port admin status: Up   Speed-duplex: Auto   Capabilities: 10half, 10full, 100half, 100full, 1000full   Flow control status: Disabled  Current status:   Created by: lacp   Link status: Up   Operation speed-duplex: 1000full   Flow control type: None   Member Ports: Eth1/7, Eth1/8, Eth1/9, Eth1/10 #

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