User Manual
UMN:CLI
V8102
325
9.2.2
Link Aggregation Control Protocol (LACP)
Link aggregation control protocol (LACP) is the function of using wider bandwidth by ag-
gregating more than two ports as a logical port as previously stated port trunk function.
If the aggregated port by port trunk is in different VLAN from the VLAN where the existing
member port originally belongs to, it should be moved to VLAN where the existing mem-
ber port belongs to. However, the integrated port configured by LACP is automatically
added to appropriate VLAN.
LACP can generate up to 12 aggregators whose number value could be 1 to 12. The
group ID of port trunk and the aggregator number of LACP cannot be configured with the
same value.
9.2.2.1
LACP Operation Mode
After configuring the member port, configure the LACP operation mode of the member
port. This defines the operation way for starting LACP operation. You can select the oper-
ation mode between the active and passive mode.
The active mode allows the system to start LACP operation regardless of other connect-
ed devices. On the other hand, the passive mode allows the system to start LACP opera-
tion only when receiving LACP messages from other connected devices.
In case of an LACP connection between 2 switches, if the member ports of both switches
are configured as the passive mode, the link between the switches cannot be established.
You can activate LACP function and configure the physical port that is a member of ag-
gregated port. To add the port interface to LACP aggregator ID and configure the opera-
tion mode of the member port, use the following command.
Command
Mode
Description
channel-group lacp AGGREGE-
TIONS mode
{
active
|
passive
}
Interface
[XE/GE]
Enables LACP and specifies physical port that is mem-
ber port of LACP aggregator ID. Configures the opera-
tion mode of the member port. (default: active)
AGGREGATIONS: aggregator ID( 1-12)
To delete the configured operation mode of the member port, use the following command.
Command
Mode
Description
no channel-group lacp AG-
GREGETIONS mode
Interface
[XE/GE]
Deletes the configured operation mode of the member
port.
9.2.2.2
Distribution Mode
If packets enter to logical port aggregating se
veral ports and there’s no way to decide
packet route, the packets could be gathered on particular member port so that it is not
possible to use logical port effectively.
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