Manual
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22.4 Kepalive Gteway Troubleshooting 
If there is any problem happens when using keepalive gateway function, please check whether 
the problem is caused by the following reasons: 
Make sure the device is layer 3 switch, layer 2 switch does not support keepalive gateway 
The detection method is used to point-to-point topology mode only 
Detect IPv4 accessibility by the method, so the detection result only affects IPv4 traffic, other 
traffic such as IPv6 is not affected 
Physical state of interface only controlled by physical signal 
Interface can’t run  IPv4  after determine gateway  is  not reachable,  so  all relative IPv4 routes 
are deleted and IPv4 route protocol can’t establish the neighbor on the interface 










