CTRON-BDG-MIB :: bdgPortDesigBrdg

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCTRON-BDG-MIBbdgPortDesigBrdg

bdgPortDesigBrdg

Module: CTRON-BDG-MIB

OID (symbolic): CTRON-BDG-MIB::bdgPortDesigBrdg

OID (numeric): 1.3.6.1.4.1.52.1.3.1.2.21

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-only

Description: The network address of the bridge that is assumed to be the root bridge on the network.

What is bdgPortDesigBrdg?

This read-only octet string identifies the network address of the bridge that this port's segment currently believes is the root bridge. An admin compares this per-port value against the device-wide bdgdeviceDesigRoot to confirm all ports agree on the same root, since a mismatch could indicate a spanning tree inconsistency. For example, if bdgPortDesigBrdg for port 2 shows a different bridge identifier than bdgdeviceDesigRoot, the admin would investigate a potential spanning tree misconfiguration on that segment.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.1.3.1.2.21
snmpwalk -v2c -c public <target> CTRON-BDG-MIB::bdgPortDesigBrdg

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.1.3.1.2.21.1
snmpget -v2c -c public <target> CTRON-BDG-MIB::bdgPortDesigBrdg.1

Start monitoring Legacy Cabletron Systems bridge device with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-BDG-MIB::bdgPortDesigBrdg OID value, configure state conditions and alerts, and monitor any Legacy Cabletron Systems bridge device from a single console.

OID Breakdown

Upper-level ancestors (11 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
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.1commsDeviceCabletron-MIB
1.3.6.1.4.1.52.1.3bridgeCabletron-MIB
1.3.6.1.4.1.52.1.3.1bridgeRev1Cabletron-MIB
1.3.6.1.4.1.52.1.3.1.2bdgPortCabletron-MIB
Numeric OIDNameModule
1.3.6.1.4.1.52.1.3.1.2.21bdgPortDesigBrdgCTRON-BDG-MIB