TP-Link TL-SG3109 Switch User Manual


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7.2 Conguring LAGs
Link Aggregation optimizes port usage by linking a group of ports together to form a single LAG. Aggregating ports multiplies
the bandwidth between the devices, increases port exibility, and provides link redundancy.
The TP-Link device supports both static LAGs and Link Aggregation Control Protocol (LACP) LAGs. LACP LAGs negotiate
aggregating port links with other LACP ports located on a different device. If the other device ports are also LACP ports, the
devices establish a LAG between them.
When conguring LAGs, ensure the following:
All ports within a LAG must be the same media type.
A VLAN is not congured on the port.
The port is not assigned to a different LAG.
Auto-negotiation mode is not congured on the port.
The port is in full-duplex mode.
All ports in the LAG have the same ingress ltering and tagged modes.
All ports in the LAG have the same back pressure and ow control modes.
All ports in the LAG have the same priority.
All ports in the LAG have the same transceiver type.
The device supports up to eight LAGs, and eight ports in each LAG.
Ports can be congured as LACP ports only if the ports are not part of a previously congured LAG.
Ports added to a LAG lose their individual port conguration. When ports are removed from the LAG, the original port
conguration is applied to the ports.
This section contains the following topics:
Dening LAG Members
Conguring LACP
7.2.1 Dening LAG Members
To dene LAG members:
1. Click System > Bridging Cong > Interface > LAG Membership. The LAG Membership Page opens:
Figure 67: LAG Membership Page
The LAG Membership Page contains the following elds:
LAG Port — Displays the LAG number.
Name — Displays the user-dened port name.
Link State — Displays the link operational status.
Members— Displays the ports congured to the LAG.
Membership groups are indicated as bold when active
and as grayed when passive.
Remove — Removes the LAG. The possible field
values:
– Checked — Removes the selected LAG.
– Unchecked— Maintains the LAGs.
To modify LAG Membership:
1. Click . The LAG Membership Settings Page opens.
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