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AIX 5L Practical Performance Tools and Tuning Guide by IBM Redbooks

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6.1. Network overview

Tuning network utilization is a complex and sometimes very difficult task. You need to know how applications communicate and how the network protocols work on AIX and other systems involved in the communication. The only general recommendation for network tuning is that Interface Specific Network Options (ISNO) should be used and buffer utilization should be monitored.

Note

When tuning network buffers, indiscriminately using buffers that are too large can in fact reduce performance

Knowledge of you network topology is essential, this will help you find the performance bottlenecks on the network. This includes information about the routers and gateways used, the Maximum Transfer Unit (MTU) used on the network path between ...

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