GIGAswitchEthernet-MIB :: gsESwitchPortFastStart

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › GIGAswitchEthernet-MIB › gsESwitchPortFastStart

gsESwitchPortFastStart

Module: GIGAswitchEthernet-MIB

OID (symbolic): GIGAswitchEthernet-MIB::gsESwitchPortFastStart

OID (numeric): 1.3.6.1.4.1.36.2.18.39.5.2.1.1.17

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: When this object is set to enable(1), bridge ports on this switch port transitions right from blocking to forwarding, skipping the listening and learning states. The user should be warned that using the fast start feature greatly increases the likelihood of unintended network loops that would otherwise be prevented by participating in the normal spanning tree algorithm.

The factory default value for this object is disable(2).

What is gsESwitchPortFastStart?

Enables STP fast-start on this switch port (and all its bridge ports), letting them jump straight from Blocking to Forwarding and skip Listening/Learning; this is the current, non-deprecated replacement for gsEBridgePortFastStart. It significantly raises the risk of accidental network loops, so the factory default is disable(2), and admins enable it only on a port they're certain can never form a loop, like a single-host access port needing fast link-up (e.g. for PXE boot).

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.36.2.18.39.5.2.1.1.17
snmpwalk -v2c -c public <target> GIGAswitchEthernet-MIB::gsESwitchPortFastStart

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.36.2.18.39.5.2.1.1.17.1
snmpget -v2c -c public <target> GIGAswitchEthernet-MIB::gsESwitchPortFastStart.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.36.2.18.39.5.2.1.1.17.1 i <value>

Start monitoring Digital Equipment Corporation (DEC) GIGAswitch/Ethernet chassis switch (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the GIGAswitchEthernet-MIB::gsESwitchPortFastStart OID value, configure state conditions and alerts, and monitor any Digital Equipment Corporation (DEC) GIGAswitch/Ethernet chassis switch (legacy) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.36decCMU-MIB
1.3.6.1.4.1.36.2emaDEC-ATM-CHASSIS-MIB
1.3.6.1.4.1.36.2.18decMIBextensionDEC-ATM-CHASSIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.36.2.18.39gsEMIBGIGAswitchEthernet-MIB
1.3.6.1.4.1.36.2.18.39.5gsESwitchingGIGAswitchEthernet-MIB
1.3.6.1.4.1.36.2.18.39.5.2gsESwitchPortMgtGIGAswitchEthernet-MIB
1.3.6.1.4.1.36.2.18.39.5.2.1gsESwitchPortTableGIGAswitchEthernet-MIB
1.3.6.1.4.1.36.2.18.39.5.2.1.1gsESwitchPortEntryGIGAswitchEthernet-MIB
1.3.6.1.4.1.36.2.18.39.5.2.1.1.17gsESwitchPortFastStartGIGAswitchEthernet-MIB