Layer 7 Load Balancing
For Layer 7 load balancing, the decision can be made only after the TCP setup is complete and multiple packets are received with more details about the application layer, such as HTTP URL, cookies, header fields, SSL session ID, FTP data channel port, and generic application data. To load balance traffic based on application layer information, ACE first terminates the TCP connection on itself and buffers application data. After the load balancing decision is made, a shortcut for this flow is programmed in the hardware, and subsequent packets are forwarded using the shortcut. Figure 19-9 shows an example of Layer 7 load balancing performed by ACE.
Figure 19-9 Layer 7 Load Balancing
In this mode, ACE terminates the front-end ...
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