NETI-ETH-MIB :: ethIfRstpPathCost

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › NETI-ETH-MIB › ethIfRstpPathCost

ethIfRstpPathCost

Module: NETI-ETH-MIB

OID (symbolic): NETI-ETH-MIB::ethIfRstpPathCost

OID (numeric): 1.3.6.1.4.1.2928.2.2.1.3.9.1.5

Node type: OBJECT-TYPE

Type: Integer32

Access: read-write

Description: The contribution of this port to the path cost of paths towards the spanning tree root which include this port.

A value of zero (0) means that the path cost is automatically calculated based on the port speed, as per formula:

20,000,000 / min(ethIfInSpeed, ethIfOutSpeed)

What is ethIfRstpPathCost?

This port's contribution to the path cost toward the spanning-tree root; 0 (the default) tells the device to auto-calculate the cost as 20,000,000 divided by the port's minimum of in/out speed, so a manual override is only needed to bias path selection away from the automatic speed-based cost.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2928.2.2.1.3.9.1.5
snmpwalk -v2c -c public <target> NETI-ETH-MIB::ethIfRstpPathCost

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2928.2.2.1.3.9.1.5.1
snmpget -v2c -c public <target> NETI-ETH-MIB::ethIfRstpPathCost.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.2928.2.2.1.3.9.1.5.1 i <value>

Start monitoring Net Insight Nimbra media transport node (Ethernet transport services) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the NETI-ETH-MIB::ethIfRstpPathCost OID value, configure state conditions and alerts, and monitor any Net Insight Nimbra media transport node (Ethernet transport services) from a single console.

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
1.3.6.1.4.1.2928netinsightNETI-COMMON-MIB
1.3.6.1.4.1.2928.2netiGenericNETI-COMMON-MIB
Numeric OIDNameModule
1.3.6.1.4.1.2928.2.2netiEthMIBNETI-ETH-MIB
1.3.6.1.4.1.2928.2.2.1ethObjectsNETI-ETH-MIB
1.3.6.1.4.1.2928.2.2.1.3ethInterfaceGroupNETI-ETH-MIB
1.3.6.1.4.1.2928.2.2.1.3.9ethIfRstpTableNETI-ETH-MIB
1.3.6.1.4.1.2928.2.2.1.3.9.1ethIfRstpEntryNETI-ETH-MIB
1.3.6.1.4.1.2928.2.2.1.3.9.1.5ethIfRstpPathCostNETI-ETH-MIB