All MIBs › TCP-ESTATS-MIB › tcpEStatsStackCongOverCount
tcpEStatsStackCongOverCount
Module: TCP-ESTATS-MIB
OID (symbolic): TCP-ESTATS-MIB::tcpEStatsStackCongOverCount
OID (numeric): 1.3.6.1.2.1.156.1.1.5.1.26
Node type: OBJECT-TYPE
Type: ZeroBasedCounter32
Access: read-only
Description: The number of congestion events that were 'backed out' of the congestion control state machine such that the congestion window was restored to a prior value. This can happen due to the Eifel algorithm [RFC3522] or other algorithms that can be used to detect and cancel spurious invocations of the Fast Retransmit Algorithm.
Although it may be feasible to undo the effects of spurious invocation of the Fast Retransmit congestion events cannot easily be backed out of tcpEStatsPerfCongSignals and tcpEStatsPathPreCongSumCwnd, etc.
What is tcpEStatsStackCongOverCount?
Count of congestion events that were 'backed out' - the congestion window was restored after being cut, because an algorithm like Eifel determined the Fast Retransmit that triggered the cut was spurious.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.156.1.1.5.1.26 snmpwalk -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsStackCongOverCount
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.156.1.1.5.1.26.1 snmpget -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsStackCongOverCount.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::tcpEStatsStackCongOverCount 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 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 | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.156 | tcpEStatsMIB | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1 | tcpEStatsMIBObjects | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1 | tcpEStats | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1.5 | tcpEStatsStackTable | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1.5.1 | tcpEStatsStackEntry | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1.5.1.26 | tcpEStatsStackCongOverCount | TCP-ESTATS-MIB |