IEEE8021-AS-MIB :: ieee8021AsDefaultDSNumberPorts

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › IEEE8021-AS-MIB › ieee8021AsDefaultDSNumberPorts

ieee8021AsDefaultDSNumberPorts

Module: IEEE8021-AS-MIB

OID (symbolic): IEEE8021-AS-MIB::ieee8021AsDefaultDSNumberPorts

OID (numeric): 1.3.111.2.802.1.1.20.1.1.2

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: The number of PTP ports on the device. For an end station the value is 1.

What is ieee8021AsDefaultDSNumberPorts?

Reports how many gPTP (802.1AS) ports this device has; an end station always reports 1, while a bridge reports one per participating port. Useful to confirm how many links a switch is expected to be synchronizing time over.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.20.1.1.2
snmpwalk -v2c -c public <target> IEEE8021-AS-MIB::ieee8021AsDefaultDSNumberPorts

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.111.2.802.1.1.20.1.1.2.1
snmpget -v2c -c public <target> IEEE8021-AS-MIB::ieee8021AsDefaultDSNumberPorts.1

Start monitoring Vendor-neutral IEEE 802.1AS standard (gPTP-capable bridge/switch/end station) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEEE8021-AS-MIB::ieee8021AsDefaultDSNumberPorts OID value, configure state conditions and alerts, and monitor any Vendor-neutral IEEE 802.1AS standard (gPTP-capable bridge/switch/end station) from a single console.

OID Breakdown

Upper-level ancestors (3 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.111.2.802.1.1ieee802dot1mibsIEEE8021-TC-MIB
Numeric OIDNameModule
1.3.111.2.802.1.1.20ieee8021AsTimeSyncMibIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1ieee8021AsMIBObjectsIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1.1ieee8021AsDefaultDSIEEE8021-AS-MIB
1.3.111.2.802.1.1.20.1.1.2ieee8021AsDefaultDSNumberPortsIEEE8021-AS-MIB