MSTP-MIB :: swMSTPStpMaxAge

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsMSTP-MIBswMSTPStpMaxAge

swMSTPStpMaxAge

Module: MSTP-MIB

OID (symbolic): MSTP-MIB::swMSTPStpMaxAge

OID (numeric): 1.3.6.1.4.1.171.12.15.1.3

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The value that all bridges use for MaxAge when this bridge is acting as the root. Note that the range for this parameter is related to the value of StpForwardDelay and PortAdminHelloTime. MaxAge <= 2(ForwardDelay - 1);MaxAge >= 2(HelloTime + 1) The granularity of this timer is specified by 802.1D-1990 to be 1 second. An agent may return a badValue error if a set is attempted to a value which is not a whole number of seconds.

What is swMSTPStpMaxAge?

This read-write value (600-4000, in hundredths of a second) sets the MaxAge used by all bridges in the network when this bridge is the root, i.e. how long STP information can be held before being discarded. It must satisfy MaxAge <= 2*(ForwardDelay-1) and MaxAge >= 2*(HelloTime+1), so admins should adjust ForwardDelay/HelloTime together rather than in isolation.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.12.15.1.3
snmpwalk -v2c -c public <target> MSTP-MIB::swMSTPStpMaxAge

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.171.12.15.1.3.1
snmpget -v2c -c public <target> MSTP-MIB::swMSTPStpMaxAge.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.171.12.15.1.3.1 i <value>

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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
1.3.6.1.4.1.171.12.15.1swMSTPGblMgmtMSTP-MIB
1.3.6.1.4.1.171.12.15.1.3swMSTPStpMaxAgeMSTP-MIB