Filter
Top Products
DES-7200 Configuration Guide Chapter 4 LACP Configuration
4-1
4 LACP Configuration
4.1 Overview
LACP(Link Aggregation Control Protocol) is a protocol based on IEEE802.3ad and
aims to implement the dynamic link aggregation and deaggregation. This protocol
interacts with its peer by using the LACPDU(Link Aggregation Control Protocol Data
Unit).
With LACP enabled on the port, LACP notifies the following information of the port
by sending LACPDUs: priority and MAC address of the system, port priority, number
and operation key. Upon receiving the information, the peer determines the port that
can be aggregated by comparing the reveived information with the information of
other ports on the peer device. In this way, the two parties can reach an aggreement
in adding/removing the port to/from a dynamic aggregation group.
4.2 Dynamic Link Aggregation Mode
A LACP port can be in one of the three aggregation modes: Active, Passive and
Static.
The port in the active state will transceive the LACP packets and negotiate with the
peer end, the port in the passive state will only respond to the received LACP
pacekts, and the port in the static mode will not transceive the LACP packets or
negotiate with the peer end, see the static AP configuration guide AP-SCG.doc for
detailed configuration.
Port mode Neighbor port mode
Active mode
Active or passive mode.
Passive mode
Active mode
Static mode
Static mode.
4.3 LACP Port State
The port member in the aggregation group can be in the following 3 states:
When the link state of the port is Down, no packet is forwarded on the port. The port
state is down.