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Barracuda Load Balancer ADC

Two-Armed with Layer 4 Load Balancing

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Use this option to provide Layer 4 load balancing of TCP or UDP traffic with the Barracuda Load Balancer ADC.

Secure TCP Proxy Service

If you want to provide SSL offloading for TCP/IP traffic, use a Secure TCP Proxy service.

Deploying the Barracuda Load Balancer ADC in a two-armed configuration provides greater performance but requires you to change the IP addresses of all your real servers. If a Layer 4 type of service is used, you must set the Barracuda Load Balancer ADC as the default gateway for all downstream real servers so that the Barracuda Load Balancer ADC can handle the responses that are issued by these servers to client requests.

Figure 1. Two-armed Route-Path network with Layer 4 services.




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