Applications using Parcel mode (request_mode='P')
CLI uses, either Response (PclRESP) or the KeepResponse (PclKEEPRESP) parcel to inform
the server about the size of response buffer allocated to receive the response message.
Use of 'PclRESP' or 'PclKEEPRESP' parcel is directed by the client to CLI through
DBCAREA field 'keep_resp'.
Initial buffer size that needs to be allocated by CLI for collecting the response
messages is directed by the client using DBCAREA field 'resp_buf_len'.
If this response buffer size does not fit one single response message then server
sends a 'Message overflow' error (3115 or 3116) through error parcel. CLI parses
this error parcel and grows its response buffer as indicated in 'info code' of error
parcel.
Currently NW CLI controls the maximum limit of the response size that can directed
by the client in DBCAREA field 'resp_buf_len' through another DBCAREA field 'maximum_parcel'.
If 'maximum_parcel' is set to 'O', then 'resp_buf_len' can be set to not more than
32K.
If 'maximum_parcel' is set to 'H', then 'resp_buf_len' can be set to not more than
64K.