System > Network > Basic Network > Load Balancing > Link Load Balancing > Outbound
After enabling LLB for outbound traffic, the system will detect the best link using proximity detection technique if it fails to find the egress via existing PBR, SIBR, SBR, destination route (except for the default route 0.0.0.0/0) and ISP route.
To enable the outbound LLB, you should enable the proximity detection function on the specified interfaces. Take the following steps:
After successfully detecting a link via proximity detection technique, the system will generate a static route (known as proximity route) and add it to the routing table. You can customize the proximity route as needed. To configure a proximity route, take the following steps:
Options on the Proximity Route Options dialog:
Option | Description |
Aging Time |
Specifies the aging time for the proximity route. The value range is 1 to 1440 minutes. The default value is 10. If no traffic matches to the route after aging time, the system will age out the route and delete it from the routing table. |
Subnet Mask |
Specifies the mask for the proximity route. The system supports two mask formats: A.B.C.D and number. The value range of A.B.C.D is 255.0.0.0 to 255.255.255.255, the default value is 255.255.255.0; the value range of num is 8 to 32, the default value is 24. |
Restore Default |
Restores the settings to the default values. |