All MIBs › SNMP-REPEATER-MIB › rptrMonTxCollisions
rptrMonTxCollisions
Module: SNMP-REPEATER-MIB
OID (symbolic): SNMP-REPEATER-MIB::rptrMonTxCollisions
OID (numeric): 1.3.6.1.2.1.22.2.4.1.1.1
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: For a clause 9 (10Mb/s) repeater, this counter is incremented every time the repeater state machine enters the TRANSMIT COLLISION state from any state other than ONE PORT LEFT (Ref: Fig 9-2 [IEEE 802.3 Std]).
For a clause 27 repeater, this counter is incremented every time the repeater core state
diagram enters the Jam state as a result of Activity(ALL) > 1 (fig 27-2 [IEEE 802.3 Std]).
The approximate minimum time for rollover of this counter is 16 hours in a 10Mb/s repeater and 1.6 hours in a 100Mb/s repeater.
What is rptrMonTxCollisions?
This counter increments each time a network repeater detects and handles a collision (simultaneous transmission from multiple ports) on its media, either entering the TRANSMIT COLLISION state (for 10Mbps repeaters) or the Jam state (for 100Mbps repeaters). High collision counts indicate excessive shared-media contention or misconfigured duplex settings, which degrade network performance. Network administrators monitor this to diagnose physical layer issues and determine if the network segment is oversubscribed.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.22.2.4.1.1.1 snmpwalk -v2c -c public <target> SNMP-REPEATER-MIB::rptrMonTxCollisions
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.22.2.4.1.1.1.1 snmpget -v2c -c public <target> SNMP-REPEATER-MIB::rptrMonTxCollisions.1
Start monitoring vendor-neutral, standards-based MIB, IEEE 802.3 Ethernet repeater/hub device (repeater/port operational status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SNMP-REPEATER-MIB::rptrMonTxCollisions OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, IEEE 802.3 Ethernet repeater/hub device (repeater/port operational status) from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.2.1.22 | snmpDot3RptrMgt | LANART-AGENT |
| 1.3.6.1.2.1.22.2 | rptrMonitorPackage | LANART-AGENT |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.22.2.4 | rptrMonitorAllRptrInfo | SNMP-REPEATER-MIB |
| 1.3.6.1.2.1.22.2.4.1 | rptrMonTable | SNMP-REPEATER-MIB |
| 1.3.6.1.2.1.22.2.4.1.1 | rptrMonEntry | SNMP-REPEATER-MIB |
| 1.3.6.1.2.1.22.2.4.1.1.1 | rptrMonTxCollisions | SNMP-REPEATER-MIB |