All MIBs › ACMIB › bridgeDomainPriority
bridgeDomainPriority
Module: ACMIB
OID (symbolic): ACMIB::bridgeDomainPriority
OID (numeric): 1.3.6.1.4.1.1751.2.18.5.9.1.4
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The value of the writeable portion of the Bridge ID, i.e., the first two octets of the (8 octet long) Bridge ID. The other (last) 6 octets of the Bridge ID are given by the value of dot1dBaseBridgeAddress.
What is bridgeDomainPriority?
This OID controls the bridge priority value (range 0–65535) that determines which switch becomes the spanning tree root when multiple bridges compete for the role. Network engineers adjust this parameter to deliberately select a specific switch as the root, ensuring consistent topology and optimal traffic paths. For example, setting this to 0 on the core switch forces it to become root, while setting 65535 on edge switches prevents them from ever competing for root status.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.9.1.4 snmpwalk -v2c -c public <target> ACMIB::bridgeDomainPriority
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.9.1.4.1 snmpget -v2c -c public <target> ACMIB::bridgeDomainPriority.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.5.9.1.4.1 i <value>
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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 |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1751 | lucent | ACMIB |
| 1.3.6.1.4.1.1751.2 | mibs | ACMIB |
| 1.3.6.1.4.1.1751.2.18 | acMIB | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5 | intfConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.9 | bridgeDomainTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.9.1 | bridgeDomainEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.9.1.4 | bridgeDomainPriority | ACMIB |