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Port Config
Port Select: Click the Select button to quick-se
lect the corresponding port
based on the port number you entered.
Select: Select the desired port for Loopback Detection configuratio
n. It is
multi-optional.
Port: Displays the port number.
St
atus: Enable or disable Loopback Detection function for the port.
Operation Mode: Select the mode how the switch processes the detected loop
s.
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 the 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 S
tatus: Displays the port status about block or unblock.
LAG: Displays the LAG number the port belongs to.
Manual Recover: Manually remove the block status of selected ports.
Note:
1. Recovery Mode is not selectable when Alert is chosen in Operation Mode.
2. 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. The further explains are following:
If the ports, which are enabled for the 802.1Q VLAN, STP, QoS and Port Configuration
(Speed and Duplex, Flow Control), are in a LAG, their configurations should be the same.
The ports, which are enabled for the Port Security, Port Mirror and MAC Address Filtering,
can not 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.
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