ISIS-MIB :: isisCircLevelHelloTimer

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › ISIS-MIB › isisCircLevelHelloTimer

isisCircLevelHelloTimer

Module: ISIS-MIB

OID (symbolic): ISIS-MIB::isisCircLevelHelloTimer

OID (numeric): 1.3.6.1.2.1.138.1.4.1.1.9

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-write

Description: Maximum period, in milliseconds, between IIH PDUs on multiaccess networks at this level for LANs. The value at L1 is used as the period between Hellos on L1L2 point-to-point circuits. Setting this value at level 2 on an L1L2 point-to-point circuit will result in an error of InconsistentValue.

This object follows the ResettingTimer behavior.

What is isisCircLevelHelloTimer?

Sets the maximum interval, in milliseconds, between hello PDUs on this circuit at this level for LANs (the Level 1 value doubles as the point-to-point hello interval on L1L2 circuits). Setting the Level 2 value on an L1L2 point-to-point circuit is rejected with an error, since only one hello timer applies there.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.138.1.4.1.1.9
snmpwalk -v2c -c public <target> ISIS-MIB::isisCircLevelHelloTimer

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.138.1.4.1.1.9.1
snmpget -v2c -c public <target> ISIS-MIB::isisCircLevelHelloTimer.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.2.1.138.1.4.1.1.9.1 i <value>

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::isisCircLevelHelloTimer 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
1.3.6.1.2mgmtAPERTUS-NPG-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
1.3.6.1.2.1.138.1.4.1.1.9isisCircLevelHelloTimerISIS-MIB