ISIS-MIB :: isisSysID

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsISIS-MIBisisSysID

isisSysID

Module: ISIS-MIB

OID (symbolic): ISIS-MIB::isisSysID

OID (numeric): 1.3.6.1.2.1.138.1.1.1.3

Node type: OBJECT-TYPE

Type: IsisSystemID

Access: read-write

Description: The ID for this Intermediate System. This value is appended to each of the area addresses to form the Network Entity Titles. The derivation of a value for this object is implementation specific. Some implementations may automatically assign values and not permit an SNMP write, while others may require the value to be set manually.

Configured values MUST survive an agent reboot.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.138.1.1.1.3
snmpwalk -v2c -c public <target> ISIS-MIB::isisSysID

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.138.1.1.1.3.1
snmpget -v2c -c public <target> ISIS-MIB::isisSysID.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.2.1.138.1.1.1.3.1 s <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::isisSysID 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
1.3.6.1.2.1.138.1.1isisSystemISIS-MIB
1.3.6.1.2.1.138.1.1.1isisSysObjectISIS-MIB
1.3.6.1.2.1.138.1.1.1.3isisSysIDISIS-MIB