Which LACP mode does not initiate a negotiation process?

The mode that does not initiate a negotiation process in Link Aggregation Control Protocol (LACP) is known as On Mode. In this configuration, the port is simply enabled for link aggregation without participating in the negotiation process. This means that while the port will aggregate and work with other ports that may be in an active or passive negotiation mode, it does not send LACP packets to coordinate the aggregation with other devices.

In contrast, Active Mode initiates the negotiation process by sending LACP packets to other devices to establish a link aggregation group (LAG). Passive Mode, while it does not initiate the negotiation, will respond to LACP packets it receives, allowing it to join a LAG established by an active mode port. Auto Mode is similar to Passive, as it allows the negotiation to occur if it is initiated by another device.

By choosing On Mode, network engineers can enable aggregation without the complexities of managing negotiations, which can be useful in scenarios where simplicity and manual configuration are preferred.