Loopback-Detection Control Enable - H3C MSR 20-20 Command Reference Manual

Description
Examples

loopback-detection control enable

Syntax
View
Parameter
Description
Example
Use the
group-member
manual port group.
Use the
undo group-member
from a manual port group.
By default, a manual port group contains no Ethernet interface.
# Add interface Ethernet 1/0 to the manual port group named group 1.
<Sysname> system-view
[Sysname] port-group manual group1
[Sysname-port-group-manual-group1] group-member ethernet 1/0
loopback-detection control enable
undo loopback-detection control enable
Ethernet interface view
None
Use the
loopback-detection control enable
detection for a Trunk port or Hybrid port.
Use the undo loopback-detection control enable
default.
By default, loopback detection for a Trunk port or Hybrid port is disabled.
When the loopback detection is enabled, if a port has been detected with
■
loopback, it will be shutdown. A Trap message will be sent to the terminal and
the corresponding MAC address forwarding entries will be deleted.
When the loopback detection is disabled, if a port has been detected with
■
loopback, a Trap message will be sent to the terminal. The port is still working
properly.
By default, loopback detection for Trunk port and Hybrid port is disabled.
Note that this command is inapplicable to an Access port as its loopback detection
is enabled by default.
# Enable loopback detection for the Trunk port Ethernet 1/0.
<Sysname> system-view
[Sysname] loopback-detection enable
[Sysname] interface ethernet 1/0
[Sysname-Ethernet1/0] port link-type trunk
[Sysname-Ethernet1/0] loopback-detection enable
[Sysname-Ethernet1/0] loopback-detection control enable
command to add specified Ethernet interfaces to a
command to remove specified Ethernet interfaces
command to enable loopback
179
command to restore the