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54 CHAPTER 2: USING PORT COMMANDS
[4500]
loopback-detection
per-vlan enable
Syntax
loopback-detection per-vlan enable
undo loopback-detection per-vlan enable
View
Ethernet Port View
Parameter
None
Description
Use the loopback-detection per-vlan enable command to configure the
system to perform loopback detection on all VLANs on Trunk and Hybrid ports.
Use the
undo loopback-detection per-vlan enable command to configure the
system to only perform loopback detection on the default VLANs on the port.
By default, the system performs loopback detection to the default VLAN on Trunk
and Hybrid ports.
Example
Configure the detection interval for the external loopback condition of each port
to 10 seconds.
<4500>system-view
System View: return to User View with Ctrl+Z.
[4500]interface ethernet 1/0/1
[4500-Ethernet1/0/1]port link-type trunk
[4500-Ethernet1/0/1]loopback-detection per-vlan enable
[4500-Ethernet1/0/1]
mdi Syntax
mdi { across | auto | normal }
undo mdi
View
Ethernet Port View
Parameter
across: Enter to configure the network cable type to cross-over cable. Not
available on the Switch 4500.
auto: Enter to configure the use of either straight-through cable or cross-over
cable.
normal: Enter to configure the network cable type to straight-through cable. Not
available on the Switch 4500.