Configuring Outbound LLB

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.

Enabling Outbound LLB

To enable outbound LLB, you need to enable outbound proximity detection on the specified interface. Take the following steps:

  1. On the Navigation pane, click Configure > Network > LLB to visit the LLB page.
  2. Click the Outbound tab.
  3. In the outbound LLB page, click Select Interface on the upper-left.
  4. In the Select Interface dialog, select the interface(s) that will be enabled with outbound proximity detection (i.e., the interface(s) that will be enabled with outbound LLB).
  5. Click OK to complete.

Configuring Proximity Route

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. Take the following steps:

  1. On the Navigation pane, click Configure > Network > LLB to visit the LLB page.
  2. To filter the routings shown in the list: select the next hop interface from the Interface drop-down list and select the Vrouter from the VR drop-down list.
  3. On the Task tab in the right auxiliary pane, configure the options for proximity route.
    • 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 num. 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.
  4. Click Save to save the changes, or click Restore to cancel the changes.