All MIBs › TCP-MIB › tcpHCInSegs
tcpHCInSegs
Module: TCP-MIB
OID (symbolic): TCP-MIB::tcpHCInSegs
OID (numeric): 1.3.6.1.2.1.6.17
Node type: OBJECT-TYPE
Type: Counter64
Access: read-only
Description: The total number of segments received, including those received in error. This count includes segments received
on currently established connections. This object is the 64-bit equivalent of tcpInSegs.
Discontinuities in the value of this counter are indicated via discontinuities in the value of sysUpTime.
What is tcpHCInSegs?
This 64-bit counter counts every TCP segment received by the system, including those with errors and segments on established connections, providing a high-capacity version of the older 32-bit tcpInSegs counter. It reflects total inbound TCP activity and is useful for monitoring systems that handle very high segment volumes where 32-bit counters would overflow. Network operators use this metric to track TCP traffic volume and detect unusual reception patterns.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.6.17 snmpwalk -v2c -c public <target> TCP-MIB::tcpHCInSegs
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.6.17.1 snmpget -v2c -c public <target> TCP-MIB::tcpHCInSegs.1
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OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.6 | tcp | CHECKPOINT-MIB-2 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.6.17 | tcpHCInSegs | TCP-MIB |