Figure 1-2
Multi-tier gateway deployment
Advantages
A multi-tier gateway deployment maximizes Symantec Mail Security's network
administration capacities.
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This configuration meets a common security audit requirement in that all data
stores are in the second tier, including the Control Center and Spam Quarantine
databases.
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Inbound traffic may be load balanced across multiple scanners with this model.
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Compared with basic gateway deployment, this configuration eliminates a
single point of failure for message scanning.
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This model allows administrators to take individual Scanners offline for
maintenance without incurring downtime.
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This scenario enables load balancing of filtered mail across multiple
downstream MTAs.
Considerations
With its greater administrative controls, a multi-tier deployment requires higher
administrative and maintenance overhead.
■
This approach requires more administrative overhead and complex networking
than a basic gateway deployment.
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With increased hardware and maintenance costs, this model could require a
higher total cost of operation.
Planning your deployment
Deployment models
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