How do Web Security Manager and Web Security Manager Premier work in High Availability?

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    Lindsey Stirneman

    WSM and WSM Premier can be configured for HA as either an Active-Passive or Active-Active pair.

    In an Active-Passive setup, one appliance serves all requests while the passive appliance drops the requests. In an Active-Active setup, both appliances serve requests.

    WSM offers different load-balancing modes depending on the environment's requirements:

     - IP-Load mode uses a multicast MAC address. A switch sends incoming traffic towards both nodes.

    - IP-Stealth mode never sends packets with its virtual MAC address as the source.

    - IP-Unicast can be safely used in scenarios where a hub is used, as it's not necessary to use a multicast MAC address.

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