"TISRVLIS CANNOT PROCSS REQUEST GREATER THAN 32K"
CA Gen 8.5 supported Direct Connect for CICS middleware versions are the single socket server listener (TISL / TISRVLIS) and multi-socket server listener (TIML / TISRVMSL). The single socket server listener will be supported in Gen 8.5 and 8.6 with no new features. All new features are built around the multi-socket server listener. The expansion of the view size works only with the multi-socket server listener for Client Server applications. The view size limit of 31K remains for Blockmode applications. See more information in the CA Gen 8.5 Release Notes, page 26 (link below), topic "Remove 32 KB CFB Limit".
This section was taken directly from the Gen 8.5 Release Notes. Link below.
CICS Socket Listener
The CICS Sockets Server Listener (program TISRVLIS) is supported for CA Gen Release 8.5 but with limitations. This Listener cannot be used by Common Format Buffers greater than 32K and will reject such requests with the message "TISRVLIS <eibtrnid> TASK=<eibtaskn> date time TISRVLIS CANNOT PROCESS REQUEST GREATER THAN 32K" if the buffer size exceeds 32K bytes. The CICS Multi-Socket Listener does not have this limitation.