CISCO-IETF-ISIS-MIB :: ciiCircIDFieldLenMismatches

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-IETF-ISIS-MIBciiCircIDFieldLenMismatches

ciiCircIDFieldLenMismatches

Module: CISCO-IETF-ISIS-MIB

OID (symbolic): CISCO-IETF-ISIS-MIB::ciiCircIDFieldLenMismatches

OID (numeric): 1.3.6.1.4.1.9.10.118.1.5.2.1.6

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of times an IS-IS control PDU with an ID field length different to that for this system has been received.

What is ciiCircIDFieldLenMismatches?

This is the number of times an IS-IS control PDU with an ID field length different to that for this system has been received. It is the per-circuit version of the system-wide ciiSysStatIDFieldLenMismatches counter, letting an admin pinpoint exactly which circuit, and therefore which neighbor, is sending PDUs with a mismatched System ID length. For example, if the system-wide mismatch counter is climbing but only one circuit's ciiCircIDFieldLenMismatches is incrementing, the admin knows precisely which neighbor to reconfigure rather than needing to inspect every circuit on the router.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.10.118.1.5.2.1.6
snmpwalk -v2c -c public <target> CISCO-IETF-ISIS-MIB::ciiCircIDFieldLenMismatches

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.10.118.1.5.2.1.6.1
snmpget -v2c -c public <target> CISCO-IETF-ISIS-MIB::ciiCircIDFieldLenMismatches.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> ciiCircIDFieldLenMismatches.1

Start monitoring Cisco routers running IS-IS (service-provider/enterprise core) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-IETF-ISIS-MIB::ciiCircIDFieldLenMismatches OID value, configure state conditions and alerts, and monitor any Cisco routers running IS-IS (service-provider/enterprise core) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.10ciscoExperimentCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.10.118ciscoIetfIsisMIBCISCO-IETF-ISIS-MIB
1.3.6.1.4.1.9.10.118.1ciscoIetfIsisMIBObjectsCISCO-IETF-ISIS-MIB
1.3.6.1.4.1.9.10.118.1.5ciiCountersCISCO-IETF-ISIS-MIB
1.3.6.1.4.1.9.10.118.1.5.2ciiCircuitCounterTableCISCO-IETF-ISIS-MIB
1.3.6.1.4.1.9.10.118.1.5.2.1ciiCircuitCounterEntryCISCO-IETF-ISIS-MIB
1.3.6.1.4.1.9.10.118.1.5.2.1.6ciiCircIDFieldLenMismatchesCISCO-IETF-ISIS-MIB