ISIS-MIB :: isisCircLevelID

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsISIS-MIBisisCircLevelID

isisCircLevelID

Module: ISIS-MIB

OID (symbolic): ISIS-MIB::isisCircLevelID

OID (numeric): 1.3.6.1.2.1.138.1.4.1.1.6

Node type: OBJECT-TYPE

Type: IsisCircuitID

Access: read-only

Description: On a point-to-point circuit with a fully initialized adjacency to a peer IS, the value of this object is the circuit ID negotiated during adjacency initialization.

On a point to point circuit without such an adjacency, the value is the concatenation of the local system ID and the one-byte isisCircLevelIDOctet for this circuit, i.e., the value that would be proposed for the circuit ID. On other circuit types, the value returned is the zero- length OCTET STRING.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.138.1.4.1.1.6
snmpwalk -v2c -c public <target> ISIS-MIB::isisCircLevelID

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.138.1.4.1.1.6.1
snmpget -v2c -c public <target> ISIS-MIB::isisCircLevelID.1

Start monitoring Vendor-neutral IETF standard, RFC 4444 (router/Layer 3 switch running IS-IS) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ISIS-MIB::isisCircLevelID OID value, configure state conditions and alerts, and monitor any Vendor-neutral IETF standard, RFC 4444 (router/Layer 3 switch running IS-IS) 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
1.3.6.1.2.1.138isisMIBISIS-MIB
1.3.6.1.2.1.138.1isisObjectsISIS-MIB
1.3.6.1.2.1.138.1.4isisCircLevelValuesISIS-MIB
1.3.6.1.2.1.138.1.4.1isisCircLevelTableISIS-MIB
1.3.6.1.2.1.138.1.4.1.1isisCircLevelEntryISIS-MIB
1.3.6.1.2.1.138.1.4.1.1.6isisCircLevelIDISIS-MIB