gtpc1m0r | Transmission Control Protocol/Internet Protocol |
The number of file descriptor entries and CLAW send message blocks is defined using the CLAWFD parameter of the SNAKEY macro. The value of the CLAWFD parameter for a particular processor depends on the CLAWADP value you are defining for that processor and the number of file descriptors you define for each TCP/IP offload device. Increasing the CLAWFD value does not significantly raise the amount of main storage needed, so set the number of file descriptors you define for each TCP/IP offload device equal to the maximum number of socket descriptors which can be created for each TCP/IP offload device. The maximum number of socket descriptors which can be created for the IBM 3172 Model 3 Interconnect Controller is 2000. In choosing a CLAWFD value for a particular processor, use the following:
CLAWFD = Number of file descriptors × number of TCP/IP offload devices attached to a processor
Example: If you plan to use three IBM 3172 Model 3 Interconnect Controllers on processor A, set the CLAWFD parameter for that processor as follows:
2000 × 3 = 6000