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SetKeepAliveTime method of the Win32_NetworkAdapterConfiguration class

The SetKeepAliveTime WMI class static method is used to set how often TCP attempts to verify that an idle connection is still available by sending a Keep Alive packet.

This topic uses Managed Object Format (MOF) syntax. For more information about using this method, see Calling a Method.

Syntax


uint32 SetKeepAliveTime(
  uint32 KeepAliveTime
);

Parameters

KeepAliveTime

Interval, in milliseconds, the TCP waits to check that an idle connection is still available.

Return value

Return codeDescription
0

Successful completion, no reboot required.

1

Successful completion, reboot required.

64

Method not supported on this platform.

65

Unknown failure.

66

Invalid subnet mask.

67

An error occurred while processing an instance that was returned.

68

Invalid input parameter.

69

More than five gateways specified.

70

Invalid IP address.

71

Invalid gateway IP address.

72

An error occurred while accessing the registry for the requested information.

73

Invalid domain name.

74

Invalid host name.

75

No primary or secondary WINS server defined.

76

Invalid file.

77

Invalid system path.

78

File copy failed.

79

Invalid security parameter.

80

Unable to configure TCP/IP service.

81

Unable to configure DHCP service.

82

Unable to renew DHCP lease.

83

Unable to release DHCP lease.

84

IP not enabled on adapter.

85

IPX not enabled on adapter.

86

Frame or network number bounds error.

87

Invalid frame type.

88

Invalid network number.

89

Duplicate network number.

90

Parameter out of bounds.

91

Access denied.

92

Out of memory.

93

Already exists.

94

Path, file, or object not found.

95

Unable to notify service.

96

Unable to notify DNS service.

97

Interface not configurable.

98

Not all DHCP leases could be released or renewed.

100

DHCP not enabled on adapter.

 

Remarks

If the remote system is still reachable and functioning, it will acknowledge the Keep Alive transmission. Keep Alive packets are not sent by default. This feature may be enabled in a connection by an application.

Examples

The Modify Keep Alive Time for All Network Adapters VBScript sample configures the keep alive time for all network adapters on a computer to 300,000 milliseconds (5 minutes).

Requirements

Minimum supported client

Windows Vista

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

MOF

CIMWin32.mof

DLL

CIMWin32.dll

See also

Computer System Hardware Classes
Win32_NetworkAdapterConfiguration
WMI Tasks: Networking
WMI Tasks: Accounts and Domains
IPv6 and IPv4 Support in WMI

 

 

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