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Operation Manual – Port Basic Configuration
Quidway S5600 Series Ethernet Switches-Release 1510
Chapter 1 Port Basic Configuration
Huawei Technologies Proprietary
1-9
Table 1-11
Set loopback detection for an Ethernet port
Operation
Command
Remarks
Enter system view
system-view
—
Enable loopback
detection globally
loopback-detection
enable
Optional
By default, loopback detection
is disabled globally.
Set time interval for
port loopback
detection
loopback-detection
interval-time time
Optional
The default interval is 30
seconds.
Enter Ethernet port
view
interface
interface-type
interface-number
—
Enable loopback
detection on a
specified port
loopback-detection
enable
Optional
By default, port loopback
detection is disabled.
Enable loopback port
control on the trunk or
hybrid port
loopback-detection
control enable
Optional
By default, loopback port
control is not enabled.
Configure the system
to run loopback
detection on all
VLANs for the trunk
and hybrid ports
loopback-detection
per-vlan enable
Optional
By default, the system runs
loopback detection only on the
default VLAN for the trunk and
hybrid ports.
Display port loopback
detection information
display
loopback-detection
Optional
You can use the command in
any view.
Caution:
z
To enable loopback detection on a specific port, you must use the
loopback-detection enable
command in both system view and the specific port
view.
z
After you use the
undo loopback-detection enable
command in system view,
loopback detection will be disabled on all ports.
1.2.9 Configuring the Ethernet Port to Run Loopback Test
You can configure the Ethernet port to run loopback test to check if it operates normally.
The port running loopback test cannot forward data packets normally. The loopback
test terminates automatically after a specific period.