Example link load balancing configuration

Two link load balancing pools with the interfaces as follows:

  1. Sales Office - 5 Mbps:
    This pool only needs 5 Mbps to be able to meet all clients’ 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.
  2. 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
  3. 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.
  4. 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:

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