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Description Use the group-member command to add specified Ethernet interfaces to a
manual port group.
Use the
undo group-member command to remove specified Ethernet interfaces
from a manual port group.
By default, a manual port group contains no Ethernet interface.
Examples # 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
Syntax loopback-detection control enable
undo loopback-detection control enable
View Ethernet interface view
Parameter None
Description Use the
loopback-detection control enable command to enable loopback
detection for a Trunk port or Hybrid port.
Use the
undo loopback-detection control enable command to restore the
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.
Example # 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