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LACP Configuration and Member Link Behavior

By default, when a redundant member link is configured, the system disables LACP and the transmitter on that link.

When a member link is administratively down, the link state is operationally down at the local and remote ends, which means it does not transmit or receive PDUs.

The active link does not fail over when:

An active link goes down and you set the redundant member link to administratively down.
An active link is set to administratively down.

LACP configurations affect member link behavior based on the local or remote endpoint. For a remote end to include a member link in link aggregation, the two member links that are connected must have LACP configured.

Table 11 lists the acceptable configurations that enable redundant behavior for LACP modes at local and remote endpoints.

Table 11: Behavior of Member Links Using Local and Remote LACP Modes

	Remote LACP Mode
		Disabled	Passive	Active
Local LACP Mode	Disabled	✓	✓	–
	Passive	✓	✓	✓
	Active	–	✓	✓

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