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Packets are duplicated when you configure a portgroup or a vSwitch to use a route that is based on IP-hash and Beaconing Probing policies simultaneously (1017612)
Starting with the VirtualCenter 2.5 Update 6 release, the VI Client disallows such a configuration and displays the following error message:
Setting Network Failover Detection to "Beacon Probing" and Load balancing to "Route based on
ip hash" at the same time is not a valid configuration. Please change your settings.
However, a few corner cases do exist, which allow a portgroup to inherit a policy setting, and therefore have the Route based on IP-hash and Beaconing Probing policies set on it.
Note: For additional information concerning the VirtualCenter 2.5 Update 6 release, see the Release Notes
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