Which two modes does LACP utilize for EtherChannel configuration?

LACP, or Link Aggregation Control Protocol, utilizes Active and Passive modes for EtherChannel configuration. In Active mode, a device actively initiates the negotiation of an EtherChannel link by sending LACP packets to discover and join other links into a bundle. This means that the device is proactive in attempting to form an aggregate link.

In Passive mode, on the other hand, the device does not initiate negotiations but is ready to respond to LACP packets received from active devices. By waiting for another device to initiate the negotiation process, the passive device can still participate in forming an EtherChannel if it detects an active device that is attempting to establish a connection.

This combination of Active and Passive modes allows for flexible and robust channel aggregation, ensuring that devices can form EtherChannel links even if they operate under different configurations. The emphasis on these two terms, Active and Passive, highlights LACP's capability to handle link aggregation dynamically, differing from static configurations where links would not negotiate automatically.