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Task Remarks
Auto Detect Implementation in VLAN Interface Backup Optional
Auto Detect Basic Configuration
Follow these steps to configure the auto detect function:
To do… Use the command… Remarks
Enter system view system-view —
Create a detected group and
enter detected group view detect-group group-number Required
Add an IP address to be
detected to the detected group
detect-list list-number ip
address ip-address
[ nexthop ip-address ]
Required
Specify a relationship between
detected IP addresses in the
group
option [ and | or ]
Optional
By default, the and keyword is
specified.
Set an interval between
detecting operations timer loop interval
Optional
By default, the detecting interval
is 15 seconds.
Set the number of ICMP
requests during a detecting
operation
retry retry-times Optional
By default, the number is 2.
Set a timeout waiting for an
ICMP reply timer wait seconds
Optional
By default, the timeout is 2
seconds.
Display the detected group
configuration
display detect-group
[ group-number ] Available in any view
If the relationship between IP addresses of a detected group is and, any unreachable IP address in the
group makes the detected group unreachable and the remaining IP addresses will not be detected. If
the relationship is or, any reachable IP address makes the detected group reachable and the remaining
IP addresses will not be detected.
Auto Detect Implementation in Static Routing
A static route is a special route. It is manually configured by the administrator. With a static route
configured, the data packets to the specified destination will be forwarded along the path specified by
the administrator.
The disadvantage of using static routes is that they cannot adapt to network topology changes. If a fault
or a topology change occurs to the network, the routes may be unreachable and the network may
break.