H3C Technologies H3C S3600 Series Switches - Manual (Page 243)

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Auto Detect Configuration
When configuring the auto detect function, go to these sections for information you are interested in:
z Introduction to the Auto Detect Function
z Auto Detect Configuration
z Auto Detect Configuration Examples
Introduction to the Auto Detect Function
The Auto Detect function uses Internet Control Message Protocol (ICMP) request/reply packets to test
network connectivity regularly between the Auto Detect-enabled switch and the detected object.
The detected object of the Auto Detect function is a detected group, which is a set of IP addresses. To
check the reachability to a detected group, a switch enabled with Auto Detect sends ICMP requests to
the IP addresses in the group and waits for the ICMP replies from the group based on the user-defined
policy (which includes the number of ICMP requests and the timeout waiting for a reply). Then
according to the check result, the switch determines whether to make the applications using the
detected group take effect.
Currently, the following features are used in conjunction with Auto Detect:
z Static route
z Virtual Router Redundancy Protocol (VRRP)
z Interface backup
z When the Auto Detect feature is used in conjunction with multiple features (static routing, VRRP, or
interface backup), if the detected object is the same, you can apply a detected group to multiple
features, thus reducing the configuration workload.
z For details about static routing, refer to the Routing Protocol part of the manual.
z For details about VRRP, refer the VRRP part of the manual.
Auto Detect Configuration
Complete the following tasks to configure auto detect:
Task Remarks
Auto Detect Basic Configuration Required
Auto Detect Implementation in Static Routing Optional