Compressing Data

Data compression is supported for both the RUI and SLI API interfaces. The use of data compression is negotiated per session by the BIND and BIND response. If compression is negotiated for use on the session, then LZ9 or run-length encoding (RLE) compression algorithms are accepted inbound from the primary LU (PLU) and RLE will be used for sending data to the PLU.

For both the RUI and SLI APIs, data compression can be handled by either of the following:
  • The application compresses and decompresses data
  • Communications Server compresses and decompresses data with the host, but delivers and accepts uncompressed data to and from the application.