Example link load balancing configuration
Two link load balancing pools with the interfaces as follows:
- Sales Office - 5-Mbps:
This pool only needs 5-Mbps to be able to meet all devices’ bandwidth needs. This pool can use these three connections to fulfill this. Link 1 provides the bandwidth needed, the other two are only used if the first link fails. Link 3 is only used if Link 1 and Link 2 are unavailable. - Research Office - Use maximum bandwidth:
This pool can use the maximum available bandwidth. Therefore, the Smoothwall Filter and Firewall uses both connections for traffic, but balances the load using a 2:1 weighting ratio because Link 4 has double the allocated bandwidth than Link 3.
| Local Address | Bandwidth |
| MyTelecom Link 1 (1.0.1.0/24) | 5-Mbps |
| MyTelecom Link 2 (1.0.1.1/24) | 5-Mbps |
| MyTelecom Link 3 (1.0.1.2/24) | 10-Mbps |
| Local Address | Bandwidth |
| MyTelecom Link 3 (1.0.1.2/24) | 10-Mbps |
| MyTelecom Link 4 (1.0.1.3/24) | 20-Mbps |
Link 3 can be used by both pools. If Link 3 is used by both pools, traffic is balanced as follows:
- All traffic from the Sales Office pool.
- 1/3 of traffic from the Research Office pool weighting of 2:1 is still maintained for this pool, even if other pools are using the same link as available bandwidth, and link saturation isn't measured.