TP-Link T1600G-18TS Configuration Manual page 135

Configuring LAG
 Configuring LACP
Choose the menu Switching > LAG > LACP to load the following page.
Figure 2-4 LACP Config
Follow these steps to configure LACP:
1) Specify the system priority for the switch and click Apply.
System Priority
2) Select member ports for the LAG and configure the related parameters. Click Apply.
Admin Key
Specify the system priority for the switch. A smaller value means a higher priority.
To keep active ports consistent at both ends, you can set the priority of one
device to be higher than that of the other device. The device with higher priority
will determine its active ports, and the other device can select its active ports
according to the selection result of the device with higher priority. If the two ends
have the same system priority value, the end with a smaller MAC address has the
higher priority.
Specify the Admin Key which you can regard as the group number of the LAG.
Note that the group number of other static LAGs cannot be set as an Admin Key.
The valid value of the Admin Key is determined by the maximum number of LAG
supported by your switch. For example, if your switch supports up to 14 LAGs,
the valid value is from 1 to 14.
LAG Configuration
Configuration Guide 112