WAN Load Balancing Compatibility

When WAN Load Balancing (WLB) is enabled in an Active/Active Cluster, the same WLB interface configuration is used for all nodes in the cluster.

A WAN interface failure can trigger either a WLB failover , an HA pair failover, or an Active/Active failover to another Cluster Node, depending on the following:

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WAN goes down logically due to WLB probe failure – WLB failover
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Physical WAN goes down while Physical Monitoring is enabled – HA pair failover
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Physical WAN goes down while Physical Monitoring is not enabled – Active/Active failover