REMOTE options

Use REMOTE options to override a limited number of TDMF defaults. You can specify only these options on the REMOTE control statement, and are as follows.

Read syntax diagramSkip visual syntax diagramSNDbuf( buffer_size_KB)RCVbuf( buffer_size_KB)

The purpose of the SNDBUF and RCVBUF options is to provide flexibility in TCP/IP buffer storage allocation. For example, in a storage constrained system, you can specify as little as one track's worth of data - OPT(SNDB(56)). And, in a system with plenty of available storage and at the end of a link with a high latency time, it might be beneficial to request a much larger receive buffer - OPT(RCVB(512)).

The SNDbuf option is only used by TDMF to increase the buffer size from the installation default. If this default is the usual 65,535 bytes, a specification of anything less than 64 KB does not cause TDMF to change the buffer size.

Table 1. Remote options
Parameter Description Function Options Default
SNDBuf Minimum size of the data portion of the TCP/IP sends buffer (in KB). Speed up the data transfer. Numeric value from 1 -2048. 112 (approximate capacity of two 3390 tracks).
RCVBuf Minimum size of the data portion of the TCP/IP receives buffer (in KB). This option takes effect at the Remote TDMF Master system. Speed up the data transfer. Numeric value from 1 -2048. 112 (approximate capacity of two 3390 tracks).