LAG Settings Configuration on SFE / SGE Stackable Managed Switches

Objective

A Link Aggregate Group (LAG) is used to link multiple ports together. LAGs multiply bandwidth, increase port flexibility, and provide link redundancy between two devices to optimize port usage.

This article explains how to configure parameters of LAGs and view information about LAGs on the SFE / SGE Stackable Managed Switches.

Applicable Devices

• SFE / SGE Stackable Managed Switches

Software Version

• v3.0.2.0

LAG Settings

Step 1. Log in to the web configuration utility and choose Bridging > Port Management > LAG Settings. The LAG Settings page opens:

Step 2. Click Edit to edit the LAG. The Edit LAG window appears.

Step 3. (Optional) From the LAG drop-down list choose a LAG to configure.

Step 4. Enter a name for the LAG in the Description field. The Lag Type field displays the types of ports that comprise the LAG.

Step 5. From the Admin Status drop-down list choose the status of the LAG. The Current LAG Status field displays the current operational state of the LAG.

Step 6. Check Reactivate Suspended LAG to reactivate a LAG that has been disabled by locked port security or ACL configurations. The Operational Status field displays the current operational state of the LAG.

Step 7. From the Admin Auto Negotiation drop-down list choose enable to enable admin auto negotiation. Auto negotiation is a protocol that allows two link partners to transmit transmission rates and flow controls to each other. The Current Auto Negotiation field displays the current state of auto negotiation.

Step 8. Check the box that corresponds to the desired LAG capabilities that are to be advertised in the Admin Advertisement field.

• Max Capability — All LAG speeds and duplex mode settings can be accepted.

• 10 Full — The LAG advertises a 10 Mbps speed and full duplex mode settings.

• 100 Full — The LAG advertises a 100 Mbps speed and full duplex mode settings.

• 1000 Full — The LAG advertises a 1000 Mbps speed and full duplex mode settings.

The following displays information about the LAG.

• Current Advertisement — The current admin advertisement status of the specified LAN. The LAG advertises its capabilities to its neighbor LAG to start the negotiation process.

• Neighbor Advertisement — The current admin advertisement status of the neighbor LAN. The neighbor LAG advertises its capabilities to the specified LAG to start the negotiation process.

Step 9. From the Admin Speed drop-down list choose the speed for the specified LAG. The Current LAG Speed displays the current operational speed of the LAG.

Step 10. From the Admin Flow Control drop-down list choose enable to enable flow control. Flow control manages data flow between devices so that the data can be handled at an efficient pace. The Current Flow Control displays the user designated flow control setting.

Step 11. From the PVE drop-down list choose an interface to protect the LAG through an uplink. Private VLAN Edge (PVE) provides layer 2 isolation between interfaces that share the same VLAN. This protects the ports of the LAG. A protected port of the LAG does not forward any traffic to any other protected port on the same switch.

Note: PVE is only available when the switch is in layer 2 mode.

Step 12. Click Apply.

Caution: This only saves your configuration to the running configuration file. This means any changes made will be lost if the device is rebooted. If you wish to save these changes even after a system reboot, you need to copy the running configuration file to the startup configuration file. See Copy Configuration File on SFE/SGE Series Managed Switches for more information on how to do this.

Copy Settings

Step 1. Enter a LAG to copy from in the Copy from Entry Number field.

Step 2. Enter a LAG to copy to in the to Entry Number(s) field.

Step 3. Click Apply.

Caution: This only saves your configuration to the running configuration file. This means any changes made will be lost if the device is rebooted. If you wish to save these changes even after a system reboot, you need to copy the running configuration file to the startup configuration file. See Copy Configuration File on SFE/SGE Series Managed Switches for more information on how to do this.