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Configuring Aggregated Ethernet LACP (CLI Procedure)

For aggregated Ethernet interfaces on EX-series switches, you can configure the Link Aggregation Control Protocol (LACP). LACP is one method of bundling several physical interfaces to form one logical interface. You can configure aggregated Ethernet with or without LACP enabled.

Before you configure LACP, be sure you have:

When LACP is enabled, the local and remote sides of the aggregated Ethernet links exchange protocol data units (PDUs), containing information about the state of the link. You can configure Ethernet links to actively transmit PDUs, or you can configure the links to passively transmit them, sending out LACP PDUs only when they receive them from another link. One side of the link must be configured as active in order for the link to be up.

To configure LACP:

  1. From the [edit interfaces interface-name aggregated-ether-options] hierarchy level, enable one side of the link as active:

    set ae x aggregated-ether-options lacp active

  2. Specify the interval at which the interfaces send LACP packets:

    set ae x aggregated-ether-options lacp periodic fast