DIFF-SERV-MIB :: diffServClassifierNextFree

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDIFF-SERV-MIBdiffServClassifierNextFree

diffServClassifierNextFree

Module: DIFF-SERV-MIB

OID (symbolic): DIFF-SERV-MIB::diffServClassifierNextFree

OID (numeric): 1.3.6.1.2.1.12345.1.1

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-only

Description: This object yields a value when read that is currently-unused for a diffServClassifierId instance. If a configuring system attempts to create a new row in the diffServClassifierTable using this value, that operation will fail if the value has, in the meantime, been used to create another row that is currently valid.

What is diffServClassifierNextFree?

Reading this object returns an unused ID suitable for creating a new row in the classifier table, saving the management station from having to scan existing entries to find a free index. It's a convenience counter rather than a live traffic statistic. If two managers grab the same value before either commits a row, the second row-creation attempt will simply fail.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.12345.1.1
snmpwalk -v2c -c public <target> DIFF-SERV-MIB::diffServClassifierNextFree

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.12345.1.1.1
snmpget -v2c -c public <target> DIFF-SERV-MIB::diffServClassifierNextFree.1

Start monitoring Router/switch performing DiffServ QoS traffic conditioning (vendor-neutral, RFC 2475) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DIFF-SERV-MIB::diffServClassifierNextFree OID value, configure state conditions and alerts, and monitor any Router/switch performing DiffServ QoS traffic conditioning (vendor-neutral, RFC 2475) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.12345diffServMibDIFF-SERV-MIB
1.3.6.1.2.1.12345.1diffServObjectsDIFF-SERV-MIB
1.3.6.1.2.1.12345.1.1diffServClassifierNextFreeDIFF-SERV-MIB