WINDOWS-NT-PERFORMANCE :: tcpConnectionsActive

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsWINDOWS-NT-PERFORMANCEtcpConnectionsActive

tcpConnectionsActive

Module: WINDOWS-NT-PERFORMANCE

OID (symbolic): WINDOWS-NT-PERFORMANCE::tcpConnectionsActive

OID (numeric): 1.3.6.1.4.1.311.1.1.3.1.1.9.3

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Connections Active is the number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.9.3
snmpwalk -v2c -c public <target> WINDOWS-NT-PERFORMANCE::tcpConnectionsActive

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.9.3.1
snmpget -v2c -c public <target> WINDOWS-NT-PERFORMANCE::tcpConnectionsActive.1

Start monitoring Windows NT/Server host running the Microsoft SNMP service (CPU/memory/disk-I/O performance-counter status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the WINDOWS-NT-PERFORMANCE::tcpConnectionsActive OID value, configure state conditions and alerts, and monitor any Windows NT/Server host running the Microsoft SNMP service (CPU/memory/disk-I/O performance-counter status) from a single console.

OID Breakdown

Upper-level ancestors (12 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.311microsoftInternetServer-MIB
1.3.6.1.4.1.311.1softwareInternetServer-MIB
1.3.6.1.4.1.311.1.1systemsMSFT-MIB
1.3.6.1.4.1.311.1.1.3osMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1windowsNTMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1.1workstationMSFT-MIB
Numeric OIDNameModule
1.3.6.1.4.1.311.1.1.3.1.1.9tCPWINDOWS-NT-PERFORMANCE
1.3.6.1.4.1.311.1.1.3.1.1.9.3tcpConnectionsActiveWINDOWS-NT-PERFORMANCE