80
Command mode:
Port Mode.
Default:
Loopback test is disabled in Ethernet port by default.
Usage Guide:
Loopback test can be used to verify the Ethernet ports are working
normally. After loopback has been enabled, the port will assume a connection established
to itself, and all traffic sent from the port will be received at the very same port.
Example:
Enabling loopback test in Ethernet ports 1/1-8.
Switch(config)#interface ethernet 1/1-8
Switch(Config-If-Port-Range)#loopback
3.1.7 mdi
Command: mdi { auto | across | normal }
no mdi
Function:
Sets the cable types supported by the Ethernet port; the ―
no mdi
‖ command
sets the cable type to auto-identification. This command is not supported on combo ports
and fiber ports.
Parameters:
auto
indicates auto identification of cable types;
across
indicates crossover
cable support only;
normal
indicates straight-through cable support only.
Command mode:
Port Mode.
Default:
Port cable type is set to auto-identification by default.
Usage Guide:
Auto-identification is recommended. Generally, straight-through cable is
used for switch-PC connection and crossover cable is used for switch-switch connection.
Example:
Setting the cable type support of Ethernet ports 1/1-8 to straight-through cable
only.
Switch(config)#interface ethernet 1/1-8
Switch(Config-Port-Range)#mdi normal
3.1.8 name
Command: name
<string>
no name
Function:
Set name for specified port; the ―
no name
‖ command cancels this
configuration.
Parameter:
<string>
is a character string, which should not exceeds 200 characters.
Command Mode:
Port Mode.
Default:
No port name by default.
Usage Guide:
This command is for helping the user manage switches, such as the user
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