SSH Reference Manual

PTY_REPLY_LEN <n>
Byte length of reply from STN to SSH.
<n> can be in the range from 1 to 16384. Default is 4096.
RECV_SIZE <nnn>
Specifies the byte length of socket receive buffers used to accept incoming session data. <nnn> is in the range 100-4095,
default 1000. Larger values offer some improvement in performance, but only when large input messages are common.
Smaller values conserve buffers in the memory pool which may be necessary with a large number of simultaneous
sessions.
REPLY_DELAY_MAX <seconds>
This command sets the maximum delay time, in seconds, for an STN reply to an I/O error. An I/O error is defined as
application I/O to the terminal (read, write, etc) which results in an STN reply with non-zero fecode (140, 110, etc.). This
protects against poorly coded applications that hard-loop on I/O errors, consuming a cpu.
The reply to the first I/O error after a normal I/O is not delayed; the second consecutive error is delayed for 0.01 second.
The delay time is multiplied by 4 for successive errors up to REPLY_DELAY_MAX seconds. The first time this limit is
reached for a session, the following EMS event is generated:
zstn-evt-application-loop 1018
<stn-proc> <appl-proc> <progfile> is looping on window
<#window>
Example:
$ZPTY \T.$X1G4 $SYSTEM.SYSTEM.TACL is looping on window
#ZWN0001
REPLY_DELAY_MAX defaults to 2 seconds, and values from 1 to 60 are allowed. REPLY_DELAY_MAX 0 disables
the feature, which means a looping application and STN can consume 100% of a cpu.
RESET SERVICE <service-name> | *
This command will reset the cumulative sessions counter to zero. Note that this is the only counter affected by RESET.
Also note that RESET does not default to "*" like INFO and STATUS; to reset counters for all services, RESET
SERVICE * is required, not just RESET SERVICE.
RSCMGR_DEPTH <n>
Specifies the number of simultaneous Resource Managers internal to STN. The range is 1 to 25, default 3. The Resource
Manager handles dynamic sessions and logon processing, including the creation of the dynamic application. If all
Resource Managers are busy, new dynamic session requests can be delayed. When the rate of new dynamic session
requests is very high, performance can be improved by increasing RSCMGR_DEPTH. Use only under guidance from
HP support staff.
SAVECFG <filename>
SAVECFG creates an edit-101 text file containing the current STN configuration. This is useful for configuration
management and for generating complete documentation for support cases.
SAVECFG also includes commentary information about the STN process. SAVECFG deals only with STN, and does
not include SSH configuration information.
274 • STN Reference HP NonStop SSH Reference Manual