Parameterization of the SAP Gateway 
The gateway is installed within an instance by the dispatcher and reads its parameters from the profile file located in the profile directory in the SAP directory tree. In standalone operation the gateway is started from the command line or using the administration tools (SAP Management Console).
You can change the following parameters in the gateway.
Some parameters can be changed (dynamically) in production operation (in transaction RZ11 or in the gateway monitor (SMGW 
Goto 
Parameter Change 
).
General/Configuration
The following are configuration parameters:
gw/startup
gw/start_in_homedir
gw/accept_remote_trace_level
gw/rem_start
gw/start_threshold
gw/remsh
gw/ssh
gw/stat
gw/monitor
gw/logging
gw/prxy_info
For more information, see: Configuration Parameters
Load balancing for registered programs is controlled by the following parameters:
gw/reg_lb_level
gw/reg_lb_default
gw/reg_lb_ip
For more information, see: Load Balancing Parameters.
Network
The parameters listed below control the behavior of the gateway within the network.
gw/netstat
gw/netstat_once
gw/alternative_hostnames
gw/so_keepalive
gw/nitrace
gw/nibuf_max
gw/nifragtest
For more information, see: Network Parameters
Timeouts
The gateway recognizes various timeouts, which you can set.
gw/timeout
gw/internal_timeout
gw/frag_timeout
gw/conn_pending
gw/gw_disconnect
gw/deallocate_timeout
gw/max_sleep
gw/keepalive
gw/reg_keepalive
gw/conn_disconnect
gw/cpic_timeout
gw/resolve_timeout
gw/reg_timeout
gw/close_routes
gw/nibuf_retry
gw/accept_timeout
For more information, see: Timeout Parameters
Resource Management
The following parameters enable gateway resource management.
gw/max_sys
gw/max_conn
gw/listen_queue_len
gw/max_overflow_usage
gw/max_overflow_size
gw/req_stack_size
For more information, see: Resource Management Parameters
Security
Use the following parameter to make security settings in the gateway.
gw/acl_file
gw/acl_mode
gw/sec_info
gw/tcp_security
gw/reg_info
snc/enable
snc/permit_insecure_comm
snc/permit_insecure_start
snc/permit_common_name
snc/gssapi_lib
snc/identity/as
For more information, see: