CTATX-MIB :: stGroupAddr

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCTATX-MIBstGroupAddr

stGroupAddr

Module: CTATX-MIB

OID (symbolic): CTATX-MIB::stGroupAddr

OID (numeric): 1.3.6.1.4.1.97.3.3.4.1

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-write

Description: The Spanning Tree Group address, normally 01-80-c2-00-00-00. Changing stGroupAddr will not take effect until the ES/1 reboots.

What is stGroupAddr?

This read-write OCTET STRING holds the Spanning Tree Group address, normally 01-80-c2-00-00-00, used for sending and receiving spanning tree BPDUs, with any change taking effect only after the ES/1 reboots. An administrator relies on this reserved multicast address remaining at its standard value for spanning tree to function correctly with other 802.1D-compliant devices. For example, the admin confirms stGroupAddr still reads the standard 01-80-c2-00-00-00 value after a firmware upgrade, ruling out a misconfiguration as the cause of missing BPDUs.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.97.3.3.4.1
snmpwalk -v2c -c public <target> CTATX-MIB::stGroupAddr

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.97.3.3.4.1.1
snmpget -v2c -c public <target> CTATX-MIB::stGroupAddr.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.97.3.3.4.1.1 s <value>

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OID Breakdown

Upper-level ancestors (7 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
1.3.6.1.4.1.97sigmaCT-ELS10-27-MIB
Numeric OIDNameModule
1.3.6.1.4.1.97.3ecs_1CTATX-MIB
1.3.6.1.4.1.97.3.3adminCTATX-MIB
1.3.6.1.4.1.97.3.3.4stCTATX-MIB
1.3.6.1.4.1.97.3.3.4.1stGroupAddrCTATX-MIB