Juniper-IGMP-MIB

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Organization: Juniper Networks, Inc.

Last Updated: 2006-08-25

Category: Technology: Multicast, Vendor: Juniper

Description: Provides managed objects for Internet Group Management Protocol (IGMP) snooping and proxy statistics on Juniper Networks E-series routers.

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What Is Juniper-IGMP-MIB?

Juniper-IGMP-MIB is a Juniper Networks enterprise MIB for E-series routers covering Internet Group Management Protocol (IGMP) multicast group membership and interface configuration. It exposes group-membership tables (juniIgmpGroupsTable/juniIgmpGroupsTable2) keyed by slot and port, tracking the number of joined groups against configured maximums (juniIgmpGroupsMaxGroups), as well as an interface table (juniIgmpInterfaceTable) describing IGMP protocol and proxy settings per interface. Its monitoring value is in multicast software-state health: administrators use it to see how many multicast groups are currently joined on a given line-card port relative to the configured limit, catching group-count exhaustion that would cause new joins to be rejected, and to confirm whether IGMP proxy or full protocol mode is active on an interface. It is a Juniper-specific extension that complements the standard IETF IGMP-MIB rather than replacing it. It is used in broadband/edge deployments on Juniper E-series routers delivering IPTV or other multicast services to subscribers. Network engineers evaluating or troubleshooting this functionality can download the Juniper-IGMP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Juniper-IGMP-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 routers

Monitoring Examples

An operator would poll juniIgmpGroupsTable (juniIgmpGroupsSlot/juniIgmpGroupsPort) and compare joined-group counts to juniIgmpGroupsMaxGroups to detect a subscriber port approaching its IGMP group limit, which would explain failed channel-change requests for IPTV subscribers. juniIgmpInterfaceTable is checked to confirm whether juniIgmpProxy or juniIgmpProtocol mode is enabled on an access interface. juniIgmpIfLocationType/juniIgmpIfLocationIndex help map an IGMP-enabled logical interface back to its physical slot/port location for troubleshooting.

What Can Be Monitored

joined multicast group count per port
maximum groups limit per port
IGMP proxy/protocol mode per interface
interface location mapping

Imported Objects

From IF-MIB

InterfaceIndex

From Juniper-MIBs

juniMibs

MODULE-IDENTITY

From Juniper-TC

JuniInterfaceLocationType
JuniInterfaceLocationValue

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using juniIgmpProxyInterfaceTotalGroupCount OID:

Select a Juniper Networks E-series router (IGMP multicast group membership) 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 juniIgmpProxyInterfaceTotalGroupCount 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. It reports the total number of multicast groups for this upstream interface (interface running IGMP proxy). 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 sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
juniIgmpMIB	1.3.6.1.4.1.4874.2.2.40			The IGMP MIB for Juniper Networks enterprise.
juniIgmpMIBObject	1.3.6.1.4.1.4874.2.2.40.1
juniIgmpProtocol	1.3.6.1.4.1.4874.2.2.40.1.1
juniIgmpInterfaceTable	1.3.6.1.4.1.4874.2.2.40.1.1.1		not-accessible	The table listing the interfaces on which IGMP is enabled.
juniIgmpInterfaceEntry	1.3.6.1.4.1.4874.2.2.40.1.1.1.1		not-accessible	An entry representing an interface on which IGMP is enabled.
NUM juniIgmpInterfaceIfIndex	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.1	InterfaceIndex	not-accessible	The ifIndex value of the interface for which IGMP is enabled.
I32 juniIgmpInterfaceQuerierTimeout	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.2	Integer32	read-write	Configure other-querier-present timeout on an interface.
T/F juniIgmpInterfaceImmediateLeave	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.3	TruthValue	read-write	Enable/disable feature to stop traffic immediately after receive leave.
STR juniIgmpInterfaceAccessGroup	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.4	DisplayString	read-write	Configure the access group list.
T/F juniIgmpInterfacePromiscuous	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.5	TruthValue	read-write	Configure the promiscuous state.
I32 juniIgmpInterfaceMaxGroups	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.6	Integer32	read-write	Configure the multicast groups limit.
NUM juniIgmpInterfaceIoaPacketReplIfIndex	1.3.6.1.4.1.4874.2.2.40.1.1.1.1.7	InterfaceIndex	read-write	Configure the IOA packet replication interface.
T/F juniIgmpRouterPromiscuous	1.3.6.1.4.1.4874.2.2.40.1.1.2	TruthValue	read-write	Configure the promiscuous state of the router.
INT juniIgmpAdminState	1.3.6.1.4.1.4874.2.2.40.1.1.3	INTEGER	read-write	Adminstratively enable/disable the IGMP on the router.
juniIgmpProxy	1.3.6.1.4.1.4874.2.2.40.1.2
juniIgmpProxyInterfaceTable	1.3.6.1.4.1.4874.2.2.40.1.2.1		not-accessible	The IGMP proxy interface table consists of interface on which the IGMP proxy is enabled.
juniIgmpProxyInterfaceEntry	1.3.6.1.4.1.4874.2.2.40.1.2.1.1		not-accessible	An entry in the juniIgmpProxyInterfaceTable.
NUM juniIgmpProxyInterfaceIfIndex	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.1	InterfaceIndex	not-accessible	The ifIndex value of the interface for which the IGMP proxy is enabled.
IP juniIgmpProxyInterfaceAddress	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.2	IpAddress	read-only	The IP address of the interface for which the IGMP proxy is enabled.
IP juniIgmpProxyInterfaceMask	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.3	IpAddress	read-only	The IP subnet mask of the interface for which the IGMP proxy is enabled.
NUM juniIgmpProxyInterfaceState	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.4	JuniIgmpProxyInterfaceState	read-only	When the IGMP proxy interface has v1 router present timeout running, it is in IgmpIntfStateV1RtPresent state. Otherwise, it is in IgmpIntfStateNonV1RtPresent states. While it is in IgmpIntfStateV1RtPresent, it only sends out version 1 group membership report(s). While it is in IgmpIntfStateNonV1RtPresent state, it sends out version 2 group membership report(s).
ROW juniIgmpProxyInterfaceStatus	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.5	RowStatus	read-create	The state of the IGMP proxy interface. This object follows the RowStatus behavior. The destruction of the the row deletes the IGMP proxy inteface.
I32 juniIgmpProxyInterfaceVersion	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.6	Integer32	read-only	The version of IGMP that this IGMP proxy interface is running.
I32 juniIgmpProxyInterfaceV1RoutePresentTimeout	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.7	Integer32	read-create	The IGMP version 1 router present timeout is the time between IGMP proxy receives a version 1 query and the time it assumes that there is no more IGMP version 1 router IGMP running. While before the V1 router present timeout expires, the IGMP proxy only sends out version 1 group membership report. When it expires, it sends out version 2 group membership report.
I32 juniIgmpProxyInterfaceUnsolicitedReportInterval	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.8	Integer32	read-create	The unsolicited report interval specifies the time between the two initial group membership reports that the IGMP proxy sends.
C32 juniIgmpProxyInterfaceTotalGroupCountEx	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.9	Counter32	read-only	Total number of multicast groups for this upstream interface (interface running IGMP proxy).
C32 juniIgmpProxyInterfaceWrongVersionCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.10	Counter32	read-only	Total number of wrong version of IGMP packets received on this interface.
C32 juniIgmpProxyInterfaceV1QueryReceiveCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.11	Counter32	read-only	Total number of version 1 IGMP queries received on this interface
C32 juniIgmpProxyInterfaceV2QueryReceiveCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.12	Counter32	read-only	Total number of version 2 IGMP queries received on this interface.
C32 juniIgmpProxyInterfaceV1ReportReceiveCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.13	Counter32	read-only	Total number of version 1 group membership reports received on this interface.
C32 juniIgmpProxyInterfaceV2ReportReceiveCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.14	Counter32	read-only	Total number of version 2 group membership reports received on this interface.
C32 juniIgmpProxyInterfaceV1JoinReportCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.15	Counter32	read-only	Total number of version 1 group membership reports sent on this interface.
C32 juniIgmpProxyInterfaceV2JoinReportCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.16	Counter32	read-only	Total number of version 2 group membership reports sent on this interface.
C32 juniIgmpProxyInterfaceLeaveReportCount	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.17	Counter32	read-only	Total number of group leave reports sent on this interface.
juniIgmpProxyCacheTable	1.3.6.1.4.1.4874.2.2.40.1.2.2		not-accessible	The IP multicast group table. The table is a union of multicast member groups from all its downstream interfaces and for which the IGMP proxy send group membership report.
juniIgmpProxyCacheEntry	1.3.6.1.4.1.4874.2.2.40.1.2.2.1		not-accessible	An entry in the juniIgmpProxyCacheTable.
NUM juniIgmpProxyIfIndex	1.3.6.1.4.1.4874.2.2.40.1.2.2.1.1	InterfaceIndex	not-accessible	The ifIndex value of the interface for which IGMP proxy is enabled.
IP juniIgmpProxyAddress	1.3.6.1.4.1.4874.2.2.40.1.2.2.1.2	IpAddress	not-accessible	The IP multicast group address that the IGMP proxy sends group membership for.
JUN juniIgmpProxyStatus	1.3.6.1.4.1.4874.2.2.40.1.2.2.1.3	JuniIgmpProxyGroupState	read-only	The state of this entry. When the IGMP proxy has a delay time running for this multicast group, the state of this enry is in the juniIgmpDelayingMember state. When the delay time expires, the IGMP proxy sends an unsolicited report and the state of this group enters juniIgmpDelayMember state.
juniIgmpGlobal	1.3.6.1.4.1.4874.2.2.40.1.3
juniIgmpGroupsTable	1.3.6.1.4.1.4874.2.2.40.1.3.1		not-accessible	Deprecated table of max multicast groups for each physical port. This has been replaced by juniIgmpGroupsTable2.
juniIgmpGroupsEntry	1.3.6.1.4.1.4874.2.2.40.1.3.1.1		not-accessible	Deprecated entry representing per physical port max multicast groups configurations. This has been replaced by juniIgmpGroupsEntry2.
I32 juniIgmpGroupsSlot	1.3.6.1.4.1.4874.2.2.40.1.3.1.1.1	Integer32	not-accessible	Deprecated physical slot position to configure the max multicast groups for any selected port. This has been replaced by juniIgmpIfLocationIndex.
I32 juniIgmpGroupsPort	1.3.6.1.4.1.4874.2.2.40.1.3.1.1.2	Integer32	not-accessible	Deprecated physical port to configure max multicast groups. This has been replaced by juniIgmpIfLocationIndex.
I32 juniIgmpGroupsMaxGroups	1.3.6.1.4.1.4874.2.2.40.1.3.1.1.3	Integer32	read-write	Deprecated max multicast groups limit value for each physical port. This has been replaced by juniIgmpGroupsMaxGroups2.
NUM juniIgmpIfLocationType	1.3.6.1.4.1.4874.2.2.40.1.3.2	JuniInterfaceLocationType	read-only	Describes the interpretation of JuniInterfaceLocationValue object values into platform-dependent interface location components, e.g., 'slot.port' on an ERX.
juniIgmpGroupsTable2	1.3.6.1.4.1.4874.2.2.40.1.3.3		not-accessible	The table of max multicast groups for each physical port.
juniIgmpGroupsEntry2	1.3.6.1.4.1.4874.2.2.40.1.3.3.1		not-accessible	Each entry represents per physical port max multicast groups configurations.
NUM juniIgmpIfLocationIndex	1.3.6.1.4.1.4874.2.2.40.1.3.3.1.1	JuniInterfaceLocationValue	not-accessible	The value of a platform interface location.
I32 juniIgmpGroupsMaxGroups2	1.3.6.1.4.1.4874.2.2.40.1.3.3.1.2	Integer32	read-write	Configure the max multicast groups limit for each physical port.
juniIgmpConformance	1.3.6.1.4.1.4874.2.2.40.4
juniIgmpCompliances	1.3.6.1.4.1.4874.2.2.40.4.1
juniIgmpCompliance	1.3.6.1.4.1.4874.2.2.40.4.1.1			Obsolete compliance statement for entities that implement the Juniper IGMP MIB. This statement became obsolete when support was added for interface addresses and multicast group limits.
juniIgmpCompliance2	1.3.6.1.4.1.4874.2.2.40.4.1.2			Obsolete compliance statement for entities that implement the Juniper IGMP MIB. This statement became obsolete when support was added for the administrative state object.
juniIgmpCompliance3	1.3.6.1.4.1.4874.2.2.40.4.1.3			Deprecated compliance statement for entities that implement the Juniper IGMP MIB. This statement was deprecated when support was added for the juniIgmpIfLocationType object.
juniIgmpCompliance4	1.3.6.1.4.1.4874.2.2.40.4.1.4			The compliance statement for entities that implement the Juniper IGMP MIB.
juniIgmpGroups	1.3.6.1.4.1.4874.2.2.40.4.2
juniIgmpProxyInterfaceGroup	1.3.6.1.4.1.4874.2.2.40.4.2.1			A collection of objects providing management of IGMP proxy interfaces in a Juniper product.
juniIgmpProxyCacheGroup	1.3.6.1.4.1.4874.2.2.40.4.2.2			An object providing management of IGMP proxy caches in a Juniper product.
juniIgmpInterfaceGroup	1.3.6.1.4.1.4874.2.2.40.4.2.3			Obsolete collection of objects providing management of IGMP interfaces in a Juniper product. This group became obsolete when the administrative state object was added.
juniIgmpGroupsGroup	1.3.6.1.4.1.4874.2.2.40.4.2.4			Deprecated object providing management of IGMP global mCast groups in a Juniper product. This group was deprecated when support was added for juniIgmpIfLocationType.
juniIgmpInterfaceGroup2	1.3.6.1.4.1.4874.2.2.40.4.2.5			A collection of objects providing management of IGMP interfaces in a Juniper product.
juniIgmpGroupsGroup2	1.3.6.1.4.1.4874.2.2.40.4.2.6			A collection of objects providing management of IGMP global mCast groups in a Juniper product.

RFC description

Juniper Internet Group Management Protocol MIB for managing multicast group memberships on Juniper devices. Provides SNMP monitoring of IGMP functionality for IP multicast on Juniper networks.

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Download Juniper-IGMP-MIB