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The Open method enables an ASP Web page to create a communication path to a specified SNMP agent.
Syntax
HRESULT Open(
[in] BSTR bstrHost,
[in] BSTR bstrCommunity,
[in] VARIANT varRetry,
[in] VARIANT varTimeout
);
Parameters
bstrHost [in]
Caller-supplied pointer to a string identifying the SNMP agent system. This can be either a dotted-decimal IP address or a host name that can be resolved to an IP address, an IPX address (in 8.12 notation), or an ethernet address.
bstrCommunity [in]
Caller-supplied pointer to a string representing the SNMP agent system's community name.
varRetry [in]
Optional, caller-supplied retry value. If not specified, a default value is used. The recommended value is 2.
varTimeout [in]
Optional, caller-supplied time-out value, in milliseconds. If not specified, a default value is used. The recommended value is 1000.
Return value
Win32 error codes can also be returned.
| Return code | Description |
|---|---|
| S_OK | The operation succeeded. |
| E_FAIL | The call to SnmpMgrOpen failed. |
| E_INVALIDARG | Either the varRetry or varTimeOut value could not be converted to a short integer. |
VBScript example
This method calls the SnmpMgrOpen function, which has the same parameters as ISNMP::Open.
After the ISNMP::Open call, the communication path to the SNMP agent remains open until the ISNMP::Close method is called, or until ISNMP::Open is called again.
Dim StrIP, strCommunity, objSNMP
strIP = Session("MS_IPaddress")
strCommunity = Session ("MS_Community")
Set objSNMP = Server.CreateObject("OlePrn.OleSNMP")
objSNMP.Open strIP, strCommunity, 2, 1000
Requirements
Target platform: Desktop
Header: Olesnmp.h