CONFIGURING THE SWITCH

Configuring Dynamic Trunks

Ports configured for LACP can automatically negotiate a trunked link with LACP-configured ports on another device.

Command Usage

To avoid creating a loop in the network, be sure you enable LACP before connecting the ports; also disconnect the ports before disabling LACP.

If the target switch has also enabled LACP on the connected ports, and port members at one or both ends of the link are set to actively initiate a link, the trunk will be activated automatically.

If the number of active ports (i.e., Work Ports) is less than the number of assigned port, all the other ports will be placed in a standby mode. Should one link in the trunk fail, one of the standby ports will automatically be activated to replace it.

All ports on both ends of an LACP trunk must be configured for full duplex, either by forced mode or auto-negotiation.

The Spanning Tree Protocol must be enabled for LACP to function properly. (See “Configuring Global STP Settings” on page 3-34.)

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SMC Networks SMC6709L2 manual Configuring Dynamic Trunks