CISCO-TCP-MIB :: ciscoTcpConnFastRetransPkts

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CISCO-TCP-MIB › ciscoTcpConnFastRetransPkts

ciscoTcpConnFastRetransPkts

Module: CISCO-TCP-MIB

OID (symbolic): CISCO-TCP-MIB::ciscoTcpConnFastRetransPkts

OID (numeric): 1.3.6.1.4.1.9.9.6.1.1.1.8

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The total number of packets retransmitted using an advanced algorithm such as Fast Retransmit or Selective Acknowledgement - that is, the number of TCP segments transmitted containing one or more previously transmitted octets.

What is ciscoTcpConnFastRetransPkts?

Counts TCP segments retransmitted via fast retransmit or selective acknowledgment mechanisms rather than a full timeout, another indicator of packet loss on the connection.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.6.1.1.1.8
snmpwalk -v2c -c public <target> CISCO-TCP-MIB::ciscoTcpConnFastRetransPkts

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.6.1.1.1.8.1
snmpget -v2c -c public <target> CISCO-TCP-MIB::ciscoTcpConnFastRetransPkts.1

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OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.6ciscoTcpMIBCISCO-TCP-MIB
1.3.6.1.4.1.9.9.6.1ciscoTcpMIBObjectsCISCO-TCP-MIB
1.3.6.1.4.1.9.9.6.1.1ciscoTcpConnTableCISCO-TCP-MIB
1.3.6.1.4.1.9.9.6.1.1.1ciscoTcpConnEntryCISCO-TCP-MIB
1.3.6.1.4.1.9.9.6.1.1.1.8ciscoTcpConnFastRetransPktsCISCO-TCP-MIB