Link Aggregation Control Protocol (LACP) on a vSphere distributed switch provides a method to control the bundling of several physical ports together to form a single logical channel. LACP on a vSphere distributed switch allows network devices to negotiate automatic bundling of links by sending LACP packets to a peer.

LACP works by sending frames down all links that have the protocol enabled. If it finds a device on the other end of the link that also has LACP enabled, it will also independently send frames along the same links enabling the two units to detect multiple links between themselves and then combine them into a single logical link.

All port groups using the uplink port group with LACP enabled must have the load balancing policy set to IP hash load balancing, network failure detection policy set to link status only, and all uplinks set to active.

1

Locate an uplink port group in the vSphere Web Client.

a

To locate an uplink port group, select a distributed switch and click the Related Objects tab.

b

Click Uplink Port Groups and select an uplink port group from the list.

2

Click the Manage tab and select Settings.

3

Click Edit.

4

In the LACP section, use the drop-down menu to enable or disable LACP.

5

(Optional) When you enable LACP, a Mode drop-down menu appears. Set this to passive or active. The default setting is passive.

Option

Description

Active

The port is in an active negotiating state, in which the port initiates negotiations with remote ports by sending LACP packets.

Passive

The port is in a passive negotiating state, in which the port responds to LACP packets it receives but does not initiate LACP negotiation.

6

Click OK.