tcpEStatsPerfCongSignals
TCP-ESTATS-MIB ·
.1.3.6.1.2.1.156.1.1.3.1.19
Object
column RMON2-MIBZeroBasedCounter32
The number of multiplicative downward congestion window
adjustments due to all forms of congestion signals,
including Fast Retransmit, Explicit Congestion Notification
(ECN), and timeouts. This object summarizes all events that
invoke the MD portion of Additive Increase Multiplicative
Decrease (AIMD) congestion control, and as such is the best
indicator of how a cwnd is being affected by congestion.
Note that retransmission timeouts multiplicatively reduce
the window implicitly by setting ssthresh, and SHOULD be
included in tcpEStatsPerfCongSignals. In order to minimize
spurious congestion indications due to out-of-order
segments, tcpEStatsPerfCongSignals SHOULD be incremented in
association with the Fast Retransmit algorithm.
Context
- MIB
- TCP-ESTATS-MIB
- OID
.1.3.6.1.2.1.156.1.1.3.1.19- Type
- column
- Access
- readonly
- Status
- current
- Parent
- tcpEStatsPerfEntry
- Groups
- 1
Net-SNMP examples
How SNMP and these commands workWalk the column to discover its indexed instances, or supply every index to read one instance.
Walk the column
/usr/bin/snmpbulkwalk -v2c -c '<community>' -Pud -Ir -OQUs -m 'TCP-ESTATS-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'TCP-ESTATS-MIB::tcpEStatsPerfCongSignals'
More examples
Read one indexed instance
/usr/bin/snmpget -v2c -c '<community>' -Pud -Ir -OQUv -m 'TCP-ESTATS-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'TCP-ESTATS-MIB::tcpEStatsPerfCongSignals.<tcpEStatsConnectIndex>'
Translate to a numeric OID
/usr/bin/snmptranslate -Pud -Ir -On -m 'TCP-ESTATS-MIB' -M '/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'TCP-ESTATS-MIB::tcpEStatsPerfCongSignals'
Syntax
- Source
- RMON2-MIBZeroBasedCounter32
- Base type
Unsigned32
Values & Constraints
No enumerated values or constraints recorded.
Conformance
Member of