gw/close_routes is a SAP Parameter attribute which is used to control Timer to close inactive routes between gateways information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
gw/close_routes profile paramerter attributes
Parameter Name: gw/close_routes
Description: Timer to close inactive routes between gateways
Default Value: 120
Parameter Type ( See
IF_PARAMETER_TYPES)
: Integer range(INT_RANGE)
Restriction Values: 0 86400
Parameter Unit: sec
Parameter Group: Gateway
CSN Component: BC-CST-GW
System-Wide parameter: No
Dynamic Parameter: Yes
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No
Parameter documentation
Connections that run over a wide area network cause high running costs.
Connections of this type are realized in an SAP environment using a
SAProuter.
The time period with which inactive gateway connections are closed is 30
minutes by default (gw/gw_disconnect> ). This
is too long for WAN connections of this type. Therefore, connections
that use a SAProuter are handled separately.
If a connection that uses a SAProuter is not used, this connection is
closed after a certain time. This period is determined by the value of
this parameter.
Value 0 deactivates the check of these connections.
Connections between gateways in a local area network (LAN), which do not
usually run through a SAProuter, are not affected by this parameter.
This check can be performed a maximum of every
gw/max_sleep> seconds. It therefore makes no sense to specify a value
smaller than gw/max_sleep.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.