Allocating the Request Buffer
CLI allocates a single request buffer per session. The allocation takes place when the session is first established.
DBCHCL automatically:
Set the size of the send queue buffer (through which data is sent to the Teradata Database internally) with the environment variable TCP_BUF_SIZE.
Use environment variable COPANOMLOG to acquire log information and size values of the send/receive queue buffer.
See the Teradata Tools and Utilities Installation Guide for the appropriate operating system for information how to set TCP_BUF_SIZE.