All MIBs › ACMIB › ethernetPhysicalAddr
ethernetPhysicalAddr
Module: ACMIB
OID (symbolic): ACMIB::ethernetPhysicalAddr
OID (numeric): 1.3.6.1.4.1.1751.2.18.2.13.1.3
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-write
Description: The MAC address used by this bridge when it must be referred to in a unique fashion. It is recommended that this be the numerically smallest MAC address of all ports that belong to this bridge. However it is only required to be unique. When concatenated with dot1dSprPriority a unique Bridgeidentifier is formed which is used in the Spanning Tree Protocol.
What is ethernetPhysicalAddr?
Stores the bridge MAC address (6-byte hardware identifier) as a 48-bit value used for unique bridge identification in spanning tree protocol. This address must be unique on your network segment and is typically set to the smallest MAC address among all bridge ports. Example: A typical MAC address value like "00:1a:2b:3c:4d:5e" uniquely identifies this bridge and determines its priority in tree topology calculations.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.13.1.3 snmpwalk -v2c -c public <target> ACMIB::ethernetPhysicalAddr
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.2.13.1.3.1 snmpget -v2c -c public <target> ACMIB::ethernetPhysicalAddr.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.2.13.1.3.1 s <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 |
| 1.3.6.1.4.1.1751.2.18.2 | equipConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13 | ethernetPortConfigTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13.1 | ethernetPortConfigEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.2.13.1.3 | ethernetPhysicalAddr | ACMIB |