Juniper-SLEP-MIB

All MIBs › Juniper-SLEP-MIB

Organization: Juniper Networks, Inc.

Last Updated: 2002-09-16

Category: Domain: WAN, Protocol: PPP, Vendor: Juniper

Description: Juniper Networks MIB for managing Serial Line Encapsulation Protocol (SLEP) WAN interface parameters on Juniper E-series routers.

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What Is Juniper-SLEP-MIB?

Juniper-SLEP-MIB is a Juniper Networks enterprise MIB managing Serial Line Encapsulation Protocol (SLEP) WAN interfaces on E-series routers, a Juniper-specific serial link layer used over lower-layer interfaces. It exposes per-interface configuration (keepalive timer, lower-layer interface binding, loop-detection behavior) in juniSlepIfTable and per-interface operational counters in juniSlepIfStatisticsTable. Its monitoring value centers on link/software health: juniSlepKeepAliveFailures tracks keepalive failures per interface, a direct indicator of a degraded or down serial link, and juniSlepDownWhenLooped configuration combined with observed state reveals loopback-triggered interface shutdowns. It layers on top of a lower physical interface referenced via juniSlepIfLowerIfIndex, so it depends on that underlying interface's MIB state (e.g. IF-MIB ifTable) for full context. It is deployed on Juniper E-series edge routers using serial WAN links for backup or legacy connectivity. Engineers can download the Juniper-SLEP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Juniper-SLEP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Juniper Networks E-series broadband routers

Monitoring Examples

An operator would poll juniSlepIfStatisticsTable entries via juniSlepIfStatsIndex to read juniSlepKeepAliveFailures for each SLEP interface, and a rising failure count signals an unstable serial link. Checking juniSlepIfRowStatus and juniSlepIfLowerIfIndex confirms the interface is active and correctly bound to its underlying physical port. If juniSlepDownWhenLooped is enabled, a sudden interface down event combined with keepalive failures would point to a detected physical loopback rather than a real link fault.

What Can Be Monitored

SLEP interface keepalive failures
interface row status (up/active)
lower-layer interface binding
keepalive timer value
loop-detection triggered shutdowns

Imported Objects

From IF-MIB

InterfaceIndex
InterfaceIndexOrZero

From Juniper-MIBs

juniMibs

MODULE-IDENTITY

From Juniper-TC

JuniEnable
JuniNextIfIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using juniSlepKeepAliveFailures OID:

Select a Juniper Networks E-series router (Serial Line Encapsulation Protocol WAN links) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type juniSlepKeepAliveFailures into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of link drops due to keep-alive failures. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
juniSlepMIBS	1.3.6.1.4.1.4874.2.2.15			The Serial Line Encapulation Protocol (SLEP) MIB for the Juniper Networks enterprise.
juniSlepObjects	1.3.6.1.4.1.4874.2.2.15.1
juniSlepIfLayer	1.3.6.1.4.1.4874.2.2.15.1.1
JUN juniSlepNextIfIndex	1.3.6.1.4.1.4874.2.2.15.1.1.1	JuniNextIfIndex	read-only	Coordinate ifIndex value allocation for entries in juniSlepIfTable. A GET of this object returns the next available ifIndex value to be used to create an entry in the associated interface table; or zero, if no valid ifIndex value is available. This object also returns a value of zero when it is the lexicographic successor of a varbind presented in an SNMP GETNEXT or GETBULK request, for which circumstance it is assumed that ifIndex allocation is unintended. Successive GETs will typically return different values, thus avoiding collisions among cooperating management clients seeking to create table entries simultaneously.
juniSlepIfTable	1.3.6.1.4.1.4874.2.2.15.1.1.2		not-accessible	The parameters for the SLEP service on this interface.
juniSlepIfEntry	1.3.6.1.4.1.4874.2.2.15.1.1.2.1		not-accessible	The Parameters for a particular SLEP interface. Creating/deleting entries in this table causes corresponding entries for be created/deleted in ifTable/ifXTable/juniIfTable.
NUM juniSlepIfIndex	1.3.6.1.4.1.4874.2.2.15.1.1.2.1.1	InterfaceIndex	not-accessible	The ifIndex value of the corresponding ifEntry.
INT juniSlepKeepAliveTimer	1.3.6.1.4.1.4874.2.2.15.1.1.2.1.2	INTEGER	read-create	The interface keep alive timer for this entry. The time in seconds that this entity will wait for sending a keep-alive-message to the remote SLEP entity, and the time in seconds that this entity will wait for the reception of a keep-alive-message from the remote SLEP entity.
NUM juniSlepIfLowerIfIndex	1.3.6.1.4.1.4874.2.2.15.1.1.2.1.3	InterfaceIndexOrZero	read-create	The ifIndex of an interface over which this SLEP interface is to be layered. A value of zero indicates no layering. An implementation may choose to require that a nonzero value be configured at entry creation.
ROW juniSlepIfRowStatus	1.3.6.1.4.1.4874.2.2.15.1.1.2.1.4	RowStatus	read-create	Controls creation/deletion of entries in this table according to the RowStatus textual convention, constrained to support the following values only: createAndGo destroy To create an entry in this table, the following entry objects MUST be explicitly configured: juniSlepIfRowStatus juniSlepIfLowerIfIndex In addition, when creating an entry the following conditions must hold: A value for juniSlepIfIndex must have been determined previously, by reading juniSlepNextIfIndex. The interface identified by juniSlepIfLowerIfIndex must exist, and must be an interface type that permits layering of SLEP Interface above it. A corresponding entry in ifTable/ifXTable/juniIfTable is created/ destroyed as a result of creating/destroying an entry in this table.
JUN juniSlepDownWhenLooped	1.3.6.1.4.1.4874.2.2.15.1.1.2.1.5	JuniEnable	read-create	The down-when-looped control for this entry. This attribute determines if loop detection is enabled for the interface. If set to disable, loop detection is disabled for the interface.
juniSlepIfStatisticsTable	1.3.6.1.4.1.4874.2.2.15.1.1.3		not-accessible	The statistics for the SLEP service on this interface.
juniSlepIfStatisticsEntry	1.3.6.1.4.1.4874.2.2.15.1.1.3.1		not-accessible	The statistics for a particular SLEP interface.
NUM juniSlepIfStatsIndex	1.3.6.1.4.1.4874.2.2.15.1.1.3.1.1	InterfaceIndex	not-accessible	The ifIndex value of that identifies this entry.
C32 juniSlepKeepAliveFailuresEx	1.3.6.1.4.1.4874.2.2.15.1.1.3.1.2	Counter32	read-only	The number of link drops due to keep-alive failures.
C32 juniSlepLinkStatusTooLongPackets	1.3.6.1.4.1.4874.2.2.15.1.1.3.1.3	Counter32	read-only	The number of packets that were too long for this SLEP entity.
C32 juniSlepLinkStatusBadFCSs	1.3.6.1.4.1.4874.2.2.15.1.1.3.1.4	Counter32	read-only	The number of FCS's errors for this SLEP entity.
juniSlepConformance	1.3.6.1.4.1.4874.2.2.15.4
juniSlepCompliances	1.3.6.1.4.1.4874.2.2.15.4.1
juniSlepCompliance	1.3.6.1.4.1.4874.2.2.15.4.1.1			Obsolete compliance statement for entities which implement the Juniper SLEP MIB. This compliance statement became obsolete when the juniSlepDownWhenLooped object was added.
juniSlepCompliance2	1.3.6.1.4.1.4874.2.2.15.4.1.2			The compliance statement for entities which implement the Juniper SLEP MIB.
juniSlepGroups	1.3.6.1.4.1.4874.2.2.15.4.2
juniSlepGroup	1.3.6.1.4.1.4874.2.2.15.4.2.1			Obsolete collection of objects providing management of SLEP interfaces in a Juniper product. This group became obsolete when the juniSlepDownWhenLooped object was added.
juniSlepGroup2	1.3.6.1.4.1.4874.2.2.15.4.2.2			A collection of objects providing management of SLEP interfaces in a Juniper product.

RFC description

Manages Serial Line Encapsulation Protocol (SLEP) interface creation and configuration on Juniper routers.

Start monitoring Juniper Networks E-series router (Serial Line Encapsulation Protocol WAN links) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download Juniper-SLEP-MIB