All MIBs › TCP-ESTATS-MIB › tcpEStatsPerfSndLimTransCwnd
tcpEStatsPerfSndLimTransCwnd
Module: TCP-ESTATS-MIB
OID (symbolic): TCP-ESTATS-MIB::tcpEStatsPerfSndLimTransCwnd
OID (numeric): 1.3.6.1.2.1.156.1.1.3.1.32
Node type: OBJECT-TYPE
Type: ZeroBasedCounter32
Access: read-only
Description: The number of transitions into the 'Congestion Limited' state from either the 'Receiver Limited' or 'Sender Limited' states. This state is entered whenever TCP transmission stops because the sender has reached some limit defined by congestion control (e.g., cwnd) or other algorithms (retransmission timeouts) designed to control network traffic. See the definition of 'CONGESTION WINDOW'
in RFC 2581.
What is tcpEStatsPerfSndLimTransCwnd?
Count of times sending stalled because the sender hit a congestion-control limit, cwnd or a retransmission timeout ('Congestion Limited'); frequent transitions here point at network congestion as the bottleneck rather than the receiver or the app.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.156.1.1.3.1.32 snmpwalk -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsPerfSndLimTransCwnd
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.156.1.1.3.1.32.1 snmpget -v2c -c public <target> TCP-ESTATS-MIB::tcpEStatsPerfSndLimTransCwnd.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::tcpEStatsPerfSndLimTransCwnd 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 |
| 1.3.6.1.2.1.156.1.1.3 | tcpEStatsPerfTable | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1.3.1 | tcpEStatsPerfEntry | TCP-ESTATS-MIB |
| 1.3.6.1.2.1.156.1.1.3.1.32 | tcpEStatsPerfSndLimTransCwnd | TCP-ESTATS-MIB |