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Port Config

Select:

Select the desired port for Loopback Detection configuration. It

is multi-optional.

Port:

Displays the port number.

Status:

Enable or disable Loopback Detection function for the port.

Operation Mode: Select the mode how the switch processes the detected loops.

• Alert: When a loop is detected, display an alert.

• Port based: When a loop is detected, display an alert and

block the port.

Recovery Mode: Select the mode how t

he blocked port recovers to normal

status.

• Auto: Block status can be automatically removed after

recovery time.

•

Manual: Block status only can be removed manually.

Loop Status:

Displays the port status whether a loopback is detected.

Block Status:

Displays the port status about block or unblock.

LAG:

Displays the LAG number the port belongs to.

Recover: Click the Recover button to manually remove the loop or block

status of selected ports.

Note:

Loopback Detection must coordinate with storm control.

5.2 LAG

LAG (Link Aggregation Group) is to combine a number of ports together to make a single

high-bandwidth data path, so as to implement the traffic load sharing among the member ports

in the group and to enhance the connection reliability.

For the member ports in an aggregation group, their basic configuration must be the same. The

basic configuration includes STP, QoS, VLAN, port attributes, MAC Address Learning mode

and other associated settings. More details are explained below:

 If the ports, which are enabled for the 802.1Q VLAN, STP, QoS and Port Configuration

(Speed and Flow Control), are in a LAG, their configurations would be the same as the

LAG’s.

 The ports, which are enabled for the half-duplex, Port Security, Port Mirror and MAC

Address Filtering, cannot be added to the LAG.

If the LAG is needed, you are suggested to configure the LAG function here before configuring

the other functions for the member ports.