Qtech QSW-8200-28T-AC — команды для функции обнаружения петли на порту: руководство [23/85]

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Qtech QSW-8200-28T-AC-DC [23/85] Loopback detection control
User Manual
Chapter 3. Commands for Port Loopback Detection Function 23
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Chapter 3 COMMANDS FOR PORT LOOPBACK DETECTION
FUNCTION
3.1 debug loopback-detection
Command: debug loopback-detection
Function: After enabling the loopback detection debug on a port, BEBUG information
will be generated when sending, receiving messages and changing states.
Parameters: None.
Command Mode: Admin Mode.
Default: Disabled by default.
Usage Guide: Display the message sending, receiving and state changes with this
command.
Example:
Switch#debug loopback-detection
%Jan 01 03:29:18 2006 Send loopback detection probe packet:dev Ethernet1/0/10, vlan
id 1
%Jan 01 03:29:18 2006 Send loopback detection probe packet:dev Ethernet1/0/10, vlan
id 2
3.2 loopback-detection control
Command: loopback-detection control {shutdown |block| learning}
no loopback-detection control
Function: Enable the function of loopback detection control on a port, the no operation
of this command will disable the function.
Parameters: shutdown set the control method as shutdown, which means to close
down the port if a port loopback is found.
block set the control method as block, which means to block a port by
allowing bpdu and loopback detection messages only if a port loopback
is found.
learning disable the control method of learning MAC addresses on the
port, not forwarding traffic and delete the MAC address of the port.
Default: Disable the function of loopback diction control.
Command Mode: Port Mode.
Usage Guide: If there is any loopback, the port will not recovery the state of be
controlled after enabling control operation on the port. If the overtime is configured,
the ports will recovery normal state when the overtime is time-out. If the control
method is block, the corresponding relationship between instance and vlan id should be
set manually by users, it should be noticed when be used.
Example: Enable the function of loopback detection control under port1/0/2 mode.

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Изучите команды для управления функцией обнаружения петли на порту. Узнайте, как включить отладку и контролировать состояние портов в сети.

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