Direct Server Return (DSR) load balancing with Symantec Messaging Gateway


Article ID: 157503


Updated On:


Messaging Gateway


DSR Mode load balancing provides a significant performance improvement over NAT and proxy load balancing configurations. Return packets are not routed back through the load balancer but directly to the source server.

This load balancing configuration requires that a VIP be configured on the loopback interface.


Symantec Messaging Gateway (SMG) does not support configuration of the loopback interface which is required to implement DSR load balancing. Support for DSR load balancing is being considered for implementation in a future product release.

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