R3303-HP HSR6800 Routers Interface Command Reference

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display loopback-detection
Use display loopback-detection to display the status of the loopback detection function.
Syntax
display loopback-detection [ | { begin | exclude | include } regular-expression ]
Views
Any view
Default command level
1: Monitor level
Parameters
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.
Usage guidelines
If loopback detection is enabled, this command also displays the detection interval and all ports in a
loop condition.
Examples
# Display information about loopback detection.
<Sysname> display loopback-detection
Loopback detection is running.
Loopback detection is in multi-port mode.
Detection interval is 30 seconds.
No port is detected with loopback.
Table 10 Command output
Field Description
Loopback-detection is in multi-port mode.
Multi-port loopback detection is enabled. This field is
displayed for only a device that supports the
loopback-detection multi-port-mode enable command.
Detection interval time is 30 seconds. Loopback detection interval is 30 seconds.
No port is detected with loopback. No loops are detected on any port.
display port-group manual
Use display port-group manual to display information about port groups.