TCP-ESTATS-MIB :: tcpEStatsPathIpTosIn

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › TCP-ESTATS-MIB › tcpEStatsPathIpTosIn

tcpEStatsPathIpTosIn

Module: TCP-ESTATS-MIB

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

OID (numeric): 1.3.6.1.2.1.156.1.1.4.1.21

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: The value of the IPv4 Type of Service octet, or the IPv6 traffic class octet, carried in the most recently received IP header.

This is useful to diagnose interactions between TCP and any IP layer packet scheduling and delivery policy, which might be in effect to implement Diffserv.

What is tcpEStatsPathIpTosIn?

The IPv4 Type-of-Service (or IPv6 traffic-class) octet on the most recently received packet for this connection; used to check whether inbound Diffserv/QoS marking is what an admin expects.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.156.1.1.4.1.21
snmpwalk -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsPathIpTosIn

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.156.1.1.4.1.21.1
snmpget -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsPathIpTosIn.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::tcpEStatsPathIpTosIn 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
1.3.6.1.2.1.156.1.1.4tcpEStatsPathTableTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1.4.1tcpEStatsPathEntryTCP-ESTATS-MIB
1.3.6.1.2.1.156.1.1.4.1.21tcpEStatsPathIpTosInTCP-ESTATS-MIB