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DES-7200 Configuration Guide Chapter 4 LACP Configuration
4-4
respectively. Enable the LACP function on the 6 ports directly-connected between
the switches. Set the aggregation mode for the 3 ports is active, and set the default
port priority for the other 3 ports as 32768.
Upon receiving the LACP packets from the switchA, switchB finds its system priority
is higher than the switchA, the port4-6 on the switchB are to be aggregated
according to the sequence of the port priority. After receiving the updated LACP
packets from the switchB, the switchA finds its system priority is lower than the
switchB and the port1-3 on the switchA are also aggregated.
4.5 LACP Requirements
LACP is a protocol that automatically add/remove the port to/from the aggregation
group. The requirements of the auto-aggreagation of those two ports are:
Only can the ports with the same operation key be aggregated;
Only can the ports that are with the same attributes such as port rate and duplex as
the master port be dynamically aggregated.
The port link state is UP, the peer port running LACP and the port or the peer port
must be in the Active mode.
4.6 LACP Configuration
4.6.1 Configuring
LACP
You can configure the LACP system priority, port priority and administrative key in
the aggregation group. All dynamic link groups on one switch share one LACP
system priority. Changing the system priority will affect all aggregation groups.
Run the following commands to configure the LACP:
Command Function
DES-7200# configure
Enter the global configuration mode.
DES-7200(config)# lacp
system-priority system-priority
(Optional) Set the LACP system
priority, in the range of 0-65535. The
default system priority is 32768.
DES-7200(config)# interface interface-id
Enter the interface configuration
mode.
DES-7200(config-if)# lacp port-priority
port-priority
(Optional) Set the LACP port priority,
in the range of 0-65535. The default
system priority is 32768.