The Gateway is started within an instance of the dispatcher. It reads its parameters from the profile file stored in the profile directory. 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 (transactiob SMGW
).Parameter | Description | Default Value |
---|---|---|
gw/accept_remote_trace_level |
Specifies whether the trace level of a CPIC or RFC connection should be transferred. (configuration parameter) |
1 |
gw/accept_timeout |
Maximum allowed time period for the login process of a server program. (timeout parameter) |
60 seconds |
gw/acl_file |
Specifies the name of an access control list (ACL) file. (security parameter) |
No ACL file is used |
gw/acl_mode |
The parameter defines the behavior of the gateway, if no ACL file (gw/sec_info oder gw/reg_info) exists. (security parameter) |
1 |
gw/alternative_hostnames |
List of alternative host names for local host. Network Parameters |
No alternative host names |
gw/close_routes |
Specifies the period (in seconds) after which a route to a remote gateway through which a CPIC connection is open is closed. (timeout parameter) |
120 seconds |
gw/conn_disconnect |
Specifies the maximum number of seconds for which an active connection can remain in the status DISCONNECT or DISCONNECTED. (timeout parameter) |
900 seconds |
gw/conn_pending |
Specifies the maximum number of seconds for which a connection can remain in the status CONN_PENDING. (timeout parameter) |
60 seconds |
gw/cpic_timeout |
Specifies the maximum wait time for a connection setup. (timeout parameter) |
20 seconds |
gw/deallocate_timeout |
Time period in which the network connection for a DEALLOCATE must be closed. (timeout parameter) |
600 seconds |
gw/frag_timeout |
Determines the timeout for incomplete network write operations. (timeout parameter) |
120 seconds |
gw/gw_disconnect |
Specifies the maximum number of seconds for which a GW-GW connection can remain inactive. (timeout parameter) |
1800 seconds |
gw/internal_timeout |
Specifies the timeout value for NiRead and NiWrite calls. (timeout parameter) |
0 milliseconds |
gw/keepalive |
Specifies the maximum time period (in seconds) before the system checks, using a ping, whether the partner is still alive when there is no data transfer across a CPIC connection. (timeout parameter) |
300 seconds |
gw/listen_queue_len |
The operating system must keep requests in a queue while the connection is being set up. (parameter for resource management) |
512 |
gw/local_addr |
Network Parameters |
|
gw/logging |
With this parameter you can configure gateway logging. (configuration parameter) |
see detailed parameter documentation. |
gw/max_conn |
Specifies the maximum number of connections that can be active at a time. (parameter for resource management) |
500 |
gw/max_conn_per_dest |
Configures how many TCP/IP connections to a remote gateway or ABAP Application Server can be opened in parallel. (parameter for resource management) |
10 |
gw/max_overflow_size |
This parameter specifies the size of the overflow area in bytes. (parameter for resource management) |
10000000 Bytes (10 MB) |
gw/max_overflow_usage |
Specifies the usage of the overflow area as a percentage from which the gateway slows down its clients, that is it sends SYNC requests. (parameter for resource management) |
20 % |
gw/max_sleep |
Specifies the maximum time in seconds for which the gateway read process sleeps on the select. (timeout parameter) |
20 seconds |
gw/max_sys |
Specifies the maximum number of clients connected at a time. (parameter for resource management) |
300 |
gw/monitor |
This parameter determines whether the gateway should communicate with the monitor locally or remotely. (configuration parameter) |
1 |
gw/netstat_once |
There are high availability solutions in which the IP addresses can move from one host to another. This means that the entries read when the gateway was started up may no longer be valid. In such cases, the current configuration must always be read using the command when making the test for a local IP address. Network Parameters |
1 |
gw/nibuf_max |
Number of entries in the host name buffer. Network Parameters |
Used by NI interface |
gw/nibuf_retry |
Time period after which the invalid entries are deleted in the host name buffer. (timeout parameter) |
Used by NI interface. |
gw/nifragtest |
Tests fragmentation on the network layer. Network Parameters |
0 |
gw/nitrace |
Activates or deactivates the trace for NI connections. Network Parameters |
0 |
gw/prxy_info |
This parameter is used to specify the proxy settings of the gateway. (configuration parameter) |
/usr/sap/<SID>/<instance>/data/prxyinfo |
gw/reg_info |
File with the security information for registered programs. (security parameter) |
<Data directory>/reg info |
gw/reg_keepalive |
Specifies the maximum time period in seconds before the system checks, using a ping, whether the partners are still alive in a registered server program with the status WAITING. (timeout parameter) |
300 seconds |
gw/reg_lb_default |
Default value for the load of a server if its IP address cannot be found in the list. (Load balancing parameter) |
20 |
gw/reg_lb_ip |
Specifies the load value for an IP address or for a range of IP addresses. (Load balancing parameter) |
see detailed parameter documentation. |
gw/reg_lb_level |
Defines the type of load balancing for registered programs. (Load balancing parameter) |
1 |
gw/reg_timeout |
Specifies the maximum wait time for setting up the connection with a registered program. (timeout parameter) |
60 seconds |
gw/remsh |
Specifies the call path of the remote shell to start programs on other hosts. (configuration parameter) |
see detailed parameter documentation. |
gw/rem_start |
Determines how remote CPIC programs are to be started. (configuration parameter) |
REMOTE_SHELL |
gw/req_stack_size |
Specifies the number of CICP requests that can be stacked for each CPIC connection. (parameter for resource management) |
30 |
gw/resolve_phys_addr | This parameter specifies whether the Gateway will resolve names of IP addresses. | Perform name resolution |
gw/resolve_timeout |
This parameter is used to activate a time measurement for the network lookup calls (host name - IP address, service name - port number). (timeout parameter) |
0 milliseconds |
gw/sec_info |
File with the security information. (security parameter) |
<Data Directory>/secinfo |
gw/so_keepalive |
Parameter to activate the socket option KEEPALIVE for the network connections. Network Parameters |
0 |
gw/ssh |
Specifies the call path of the secure shell to start programs on other hosts. (configuration parameter) |
see detailed parameter documentation. |
gw/start_in_homedir |
Determines the directory in which the gateway starts programs. (configuration parameter) |
1 |
gw/start_threshold |
If programs are started using rexec, blockages may occur in the gateway. To make it easier to analyze any blockages, a warning is written to the trace file once the time has exceeded by the defined time. (configuration parameter) |
5 seconds |
gw/startup |
File containing statements to start programs when the gateway starts. (configuration parameter) |
- |
gw/stat |
Determines the status of the gateway statistics after starting the gateway. (configuration parameter) |
0 |
gw/tcp_security |
(security parameter) |
|
gw/timeout |
Specifies the timeout value for the establishing connections to other gateways. (timeout parameter) |
0 milliseconds |
snc/enable |
Specifies whether the gateway accepts connections that protect the data via SNC. (security parameter) |
0 |
snc/gssapi_lib |
Path for the shared library of the security system in use. (security parameter) |
- |
snc/identity/as |
Identity of the gateway application server (security parameter) |
- |
snc/permit_common_name |
Specifies whether the gateway can use a default SNC name specified by the parameter snc/identity/as, if an SNC name for the connection cannot be read from the secinfo. (security parameter) |
0 |
snc/permit_insecure_comm |
Specifies whether the gateway accepts connections without SNC. (security parameter) |
0 |
snc/permit_insecure_start |
Specifies whether the gateway may establish connections with programs that communicate without SNC. (security parameter) |
0 |