FloodGate-1
Technology Overview

FloodGate-1^® delivers high-performance, policy-based Quality of Service (QoS) management by leveraging the industry's most advanced traffic inspection and bandwidth control technologies.

FloodGate-1 inspects, classifies, queues and schedules traffic. These steps are represented in the diagram below. The related technologies are then briefly described.

1. Stateful Inspection
FloodGate-1 incorporates Check Point's patented Stateful Inspection technology to capture detailed state information on all network traffic, which is stored and updated dynamically. This cumulative data is used by FloodGate-1's IQ Engine to implement the user-defined management policy.

2. INSPECT Virtual Machine Classification
The INSPECT Virtual Machine interprets state information enabling FloodGate-1 to classify more than 150 Internet services and applications.

3. IQ Engine Queuing
FloodGate-1's IQ Engine employs an innovative hierarchical Weighted Fair Queuing (WFQ) algorithm to precisely control the allocation of available bandwidth. The IQ Engine uses detailed traffic information from the INSPECT Virtual Machine to accurately classify traffic and place it in the proper transmission queue.

4. Real-Time Traffic Scheduler
Traffic is then scheduled for transmission based on the QoS policy. The IQ Engine includes a preemptive traffic scheduler so that high priority traffic is always given precedence over lower priority data. This results in exceptional accuracy when allocating bandwidth based on large weighted priorities, such as a 50:1 weighting between two Internet services.