DC-ISIS-MIB :: isisPacketCountUnknown

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DC-ISIS-MIB › isisPacketCountUnknown

isisPacketCountUnknown

Module: DC-ISIS-MIB

OID (symbolic): DC-ISIS-MIB::isisPacketCountUnknown

OID (numeric): 1.2.826.0.1.1578918.5.63.1.1.5.3.1.9

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of unknown IS-IS PDUs seen at this level.

What is isisPacketCountUnknown?

Counts PDUs of an unrecognized IS-IS PDU type seen at this level. An admin investigates a nonzero or climbing count here as a sign of a protocol version mismatch, corrupted traffic, or an unexpected non-IS-IS protocol sharing the circuit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.2.826.0.1.1578918.5.63.1.1.5.3.1.9
snmpwalk -v2c -c public <target> DC-ISIS-MIB::isisPacketCountUnknown

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.2.826.0.1.1578918.5.63.1.1.5.3.1.9.1
snmpget -v2c -c public <target> DC-ISIS-MIB::isisPacketCountUnknown.1

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OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.2member_bodyIEEE802dot11-MIB
1.2.826gbMETASWITCH-MIB
1.2.826.0gbNationalMETASWITCH-MIB
1.2.826.0.1gbNatCompanyMETASWITCH-MIB
1.2.826.0.1.1578918dataConnectionMETASWITCH-MIB
Numeric OIDNameModule
1.2.826.0.1.1578918.5.63.1dcIsisMibDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1isisObjectsDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.5isisCountersDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.5.3isisPacketCounterTableDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.5.3.1isisPacketCounterEntryDC-ISIS-MIB
1.2.826.0.1.1578918.5.63.1.1.5.3.1.9isisPacketCountUnknownDC-ISIS-MIB

Module

This MIB depends on