FoxGate S6124, Руководство по управлению

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loopbacks through this port or the specified VLAN.
Parameters: < vlan-list> the list of VLANs allowed passing through the port. Given the
situation of a trunk port, the specified VLANs can be checked. So this command is used to
set the vlan list to be checked.
Default: Disable the function of detecting the loopbacks through the port.
Command Mode: Port Mode.
Usage Guide: If a port can be a TRUNK port of multiple Vlans, the detection of loopbacks
can be implemented on the basis of port+Vlan, which means the objects of the detection
can be the specified Vlans on a port. If the port is an ACCESS port, only one Vlan on the
port is allowed to be checked despite the fact that multiple Vlans can be configured. This
function is not supported under Port-channel.
Example: Enable the function of loopback detection under port 1/2 mode.
Switch(config)#interface ethernet 1/2
Switch(Config-If-Ethernet1/2)#switchport mode trunk
Switch(Config-If-Ethernet1/2)#switchport trunk allowed vlan all
Switch(Config-If-Ethernet1/2)#loopback-detection specified-vlan 1;3;5-20
Switch(Config-If-Ethernet1/2)#no loopback-detection specified-vlan 1;3;5-20
5.3 loopback-detection interval-time
Command: loopback-detection interval-time <loopback> <no-loopback>
no loopback-detection interval-time
Function: Set the loopback detection interval. The no operate closes the loopback
detection interval function.
Parameters: < loopback > the detection interval if any loopback is found, ranging from 5
to 300, in seconds.
< no - loopback > the detection interval if no loopback is found, ranging from
1 to 30, in seconds.
Default: The default value is 5s with loopbacks existing and 3s otherwise.
Command Mode: Global Mode.
Usage Guide: When there is no loopback detection, the detection interval can be
relatively shorter, for too short a time would be a disaster for the whole network if there is
any loopback. So, a relatively longer interval is recommended when loopbacks exist.
Example: Set the loopback diction interval as 35, 15.
Switch(config)#loopback-detection interval-time 35 15