MSTP-MIB :: swMSTPInstMaxAge

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsMSTP-MIBswMSTPInstMaxAge

swMSTPInstMaxAge

Module: MSTP-MIB

OID (symbolic): MSTP-MIB::swMSTPInstMaxAge

OID (numeric): 1.3.6.1.4.1.171.12.15.2.3.1.19

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The maximum age of Spanning Tree Protocol information learned from the network on any port before it is discarded, in units of hundredths of a second. This is the actual value that this bridge is currently using.

What is swMSTPInstMaxAge?

This read-only value reports the actual MaxAge (in hundredths of a second) this bridge is currently using for this instance's spanning tree information before discarding it, as opposed to the configured swMSTPStpMaxAge value which only applies when acting as root. Admins compare this to the configured value to see what MaxAge was actually inherited from the network.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.12.15.2.3.1.19
snmpwalk -v2c -c public <target> MSTP-MIB::swMSTPInstMaxAge

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.171.12.15.2.3.1.19.1
snmpget -v2c -c public <target> MSTP-MIB::swMSTPInstMaxAge.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> swMSTPInstMaxAge.1

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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
1.3.6.1.4.1.171d_linkDE1500-MIB
1.3.6.1.4.1.171.12dlink_common_mgmtDLINK-ID-REC-MIB
Numeric OIDNameModule
1.3.6.1.4.1.171.12.15swMSTPMIBMSTP-MIB
1.3.6.1.4.1.171.12.15.2swMSTPCtrlMSTP-MIB
1.3.6.1.4.1.171.12.15.2.3swMSTPInstanceCtrlTableMSTP-MIB
1.3.6.1.4.1.171.12.15.2.3.1swMSTPInstanceCtrlEntryMSTP-MIB
1.3.6.1.4.1.171.12.15.2.3.1.19swMSTPInstMaxAgeMSTP-MIB