Technical data

Brocade ServerIron ADX Advanced Server Load Balancing Guide 37

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Sample deployment topologies

TCS with spoofing

In the following example configuration, the cache server is spoofing the client’s IP address instead

of using its own IP address when accessing the real server.

In Flow 2a, the cache server is using the client’s IP address as the source address instead of using

its own IP address. There is no difference in the CAM programming for spoofing and non-spoofing

cases. Refer to Table 1 for CAM programming details.

TCS with destination NAT

If the cache server is operating in the promiscuous or transparent mode, it can receive packets for

any IP address. But, if the cache server requires that the client traffic arrive at the IP address of the

cache server, destination NAT must be enabled on the ServerIron ADX. The following diagram

illustrates this.

TABLE 1 Required CAM programming for simple TCS configurations

Level Match Hash

1 Destination port Source IP address

2 Source port Destination IP address