Summary

How Does TCP_NODELAY Work?

Synopsis

How Does TCP_NODELAY Work?

Discussion

When a licensing session is established, TCP/IP packages and sends data between server and client using packets. By default, the TCP/IP processing kernel delays small packet transmissions in the hope of gaining an efficiency advantage by using a buffer to coalesce a large number of small packets prior to sending them across the network. These delays can result in artificially high latency times for the small packets that are related to most licensing operations.

The TCP_NODELAY system setting (as a server environment variable) can be set to overcome this behavior, and reduce the licensing wait period. Use of the setting causes data packets to be sent through the network more frequently, so there will be less delay in the licensing process due to TCP/IP operations. Please be aware that network traffic can increase due to smaller and more frequent licensing related packet transmission.