3 Web-based Management
3.2.3.3 LACP Port
On this page, you can configure dynamic LACP aggregation. A dynamic LACP trunk can only be
set or deleted automatically by the protocol. This protocol is based on IEEE802.3ad and uses
LACPDUs (link aggregation control protocol data unit) to interact with its peer. After LACP is
enabled on a port, LACP notifies the following information of the port to its peer by sending
LACPDUs: priority and MAC address of this system, priority, number and operation key of the port.
Upon receiving the information, the peer compares the information with the information of other
ports on the peer device to determine the ports that can be aggregated. In this way, the two
parties can reach an agreement in adding/removing the port to/from a dynamic aggregation group.
Any port in a dynamic LACP trunk shall have this port’s LACP enabled.A dynamic LACP
aggregation group is automatically created and removed by the system. Users cannot
add/remove ports to/from it. A port can participate in dynamic link aggregation only when it is
LACP-enabled. Ports can be aggregated into a dynamic aggregation group only when they are
connected to the same peer device and have the same basic configuration (such as rate and
duplex mode).
3.2.3.4 LACP Status
Set LACP port status as active or passive.
Passive The port does not automatically send LACP protocol packets; it responds only if it
receives an LACP protocol packet from the peer device.
Active The port automatically sends LACP protocol packets.
A link having either one or two active LACP ports can perform dynamic LACP trunking. If the two
LACP ports connected are passive, they will not perform dynamic LACP trunking as both ports are
waiting for LACP protocol packet from the peer device.
Note:
The dynamic active LACP ports on this device can aggregate with the active or passive LACP
ports of the peer devices, but the passive LACP ports of this device can only aggregate with
the active LACP ports of the peer devices.
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