TCP-ESTATS-MIB :: tcpEStatsStackActiveOpen

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › TCP-ESTATS-MIB › tcpEStatsStackActiveOpen

tcpEStatsStackActiveOpen

Module: TCP-ESTATS-MIB

OID (symbolic): TCP-ESTATS-MIB::tcpEStatsStackActiveOpen

OID (numeric): 1.3.6.1.2.1.156.1.1.5.1.1

Node type: OBJECT-TYPE

Type: TruthValue

Access: read-only

Description: True(1) if the local connection traversed the SYN-SENT state, else false(2).

What is tcpEStatsStackActiveOpen?

True if this connection was actively opened, this host sent the first SYN and went through SYN-SENT, false if it was a passive/incoming connection; a basic fact an admin uses to tell client-role connections from server-role ones in the stats tables.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.156.1.1.5.1.1
snmpwalk -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsStackActiveOpen

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.156.1.1.5.1.1.1
snmpget -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsStackActiveOpen.1

Start monitoring vendor-neutral, standards-based MIB, hosts/servers/network devices running a TCP/IP stack (extended TCP performance diagnostics) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TCP-ESTATS-MIB::tcpEStatsStackActiveOpen OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, hosts/servers/network devices running a TCP/IP stack (extended TCP performance diagnostics) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.156tcpEStatsMIBTCP-ESTATS-MIB
1.3.6.1.2.1.156.1tcpEStatsMIBObjectsTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1tcpEStatsTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1.5tcpEStatsStackTableTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1.5.1tcpEStatsStackEntryTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1.5.1.1tcpEStatsStackActiveOpenTCP-ESTATS-MIB