Gateway Parameters - Reference

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

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