MIBs
accessed for IS-IS discovery
sends SNMP requests to Juniper devices to discover routing
topology objects and their relationships. It supports SNMPv1, v2c,
and v3 access to the IS-IS MIB objects that are defined in RFC 1195.
Because the IS-IS MIB is used by Juniper
devices but not by Cisco devices, uses SNMP discovery and SNMP polling to discover and monitor
the IS-IS topology for Juniper devices, and uses CLI discovery and
CLI polling to discover and monitor the IS-IS topology for Cisco devices.
The CLI commands that are invoked for IS-IS discovery are identified
in “CLI commands
for IS-IS discovery” on page 111, and the CLI commands that
are invoked for IS-IS monitoring are identified in the
.
For Juniper devices, reads the IS-IS MIB objects
that are identified in this section to discover the following routing
topology objects and their relationships:
- IS-IS areas
- IS-IS services
- IS-IS networks
- IS-IS interfaces
- IS-IS neighbor endpoints
- IS-IS adjacenciesAfter discovering and creating the IS-IS topology objects in its repository, monitors the status of the IS-IS objects by periodically establishing SNMP sessions to the managed devices and polling the IS-IS MIB objects that are identified in the.MIB objects accessed for IS-IS discovery lists the discovery IS-IS MIB objects that are accessed by .
MIB object | OID | Description | Module |
|---|---|---|---|
isisISAdjIPAddress | .1.3.6.1.3.37.1.5.3.1.3 | One IP Address
as reported in IS-IS Hello (IIH) protocol
data units (PDUs) that are received from the neighbor. | IS-IS MIB |
isisISAdjAreaAddress | .1.3.6.1.3.37.1.5.2.1.2 | One Area Address as reported
in IIH PDUs that are received from the neighbor. | IS-IS
MIB |
isisISAdjNeighSysID | .1.3.6.1.3.37.1.5.1.1.5 | System ID and 4-byte circuit ID of the neighboring
Intermediate System set from the source ID field of the Three-Way-Handshake
information from the neighbor’s IIH PDUs. | IS-IS MIB |
isisISAdjNeighSysType | .1.3.6.1.3.37.1.5.1.1.4 | Type of the neighboring system: 1 (l1IntermediateSystem) 2 (l2IntermediateSystem) 3 (l1l2IntermediateSystem) 4 (Unknown) | IS-IS MIB |
isisISAdjNeighPriority | .1.3.6.1.3.37.1.5.1.1.8 | Priority of the
neighboring Intermediate System for becoming the:
| IS-IS MIB |
IS-IS
object creation shows the mapping between
the discovery MIB objects and the creation of the IS-IS objects.
- Discovered MIB Objects
- isisISAdjIPAddress
- Created IS-IS Objects
- ISISArea
- Created IS-IS Objects
- ISISService
- isisISAdjAreaAddress
- ISISInterface
- ISISNeighborEndpoint
- isisISAdjNeighSysID
- ISISAdjacency
- ISISNetwork
- (Created from AM-created IPNetwork object)
IS-IS
object creation