Unisphere-Data-IGMP-MIB

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Organization: Unisphere Networks, Inc.

Last Updated: 2000-09-26

Category: Juniper Unisphere ERX Routing

Description: Covers IGMP multicast group membership, querier settings, and proxy configuration on Unisphere ERX devices.

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What Is Unisphere-Data-IGMP-MIB?

This is the enterprise IGMP (Internet Group Management Protocol) MIB for Unisphere Networks' ERX Edge Router Switch line, later part of Juniper Networks. It exposes multicast-related configuration and state data, primarily around IGMP proxy interfaces used to relay group membership between downstream and upstream multicast networks. Its monitoring value is mainly protocol/software status rather than physical hardware: it reports per-interface IGMP version, proxy state, and error counters like wrong-version reports, letting an administrator confirm multicast forwarding is healthy on a given interface. It depends on the standard interface-index conventions from IF-MIB (via ifIndex references) and on general IGMP protocol semantics defined in RFC standards. It is deployed in service-provider or enterprise networks using ERX routers to deliver IPTV or other multicast services where IGMP proxy behavior needs close monitoring. Engineers can download the Unisphere-Data-IGMP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Unisphere-Data-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/Unisphere ERX Edge Router

Monitoring Examples

An administrator would walk usdIgmpProxyInterfaceTable to see per-interface entries (usdIgmpProxyInterfaceEntry) keyed by usdIgmpProxyInterfaceIfIndex, checking usdIgmpProxyInterfaceState and usdIgmpProxyInterfaceStatus to confirm the proxy is active on a given interface. A rising usdIgmpProxyInterfaceWrongVersionCount would indicate a mismatch between the configured usdIgmpProxyInterfaceVersion and the IGMP version actually used by downstream hosts, a common cause of multicast join failures. usdIgmpProxyInterfaceTotalGroupCount gives a quick health check on how many multicast groups are currently active on that interface.

What Can Be Monitored

IGMP proxy interface state/status
IGMP version per interface
total multicast group count
wrong-version report count
unsolicited report interval
V1 route-present timeout

Imported Objects

From IF-MIB

InterfaceIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION

From Unisphere-Data-MIBs

usDataMibs

MODULE-IDENTITY

How to Use in IPNetwork Monitor

Example using usdIgmpProxyInterfaceTotalGroupCount OID:

Select a Juniper/Unisphere ERX Edge Router (IGMP proxy version/error-counter status) 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 usdIgmpProxyInterfaceTotalGroupCount 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
usdIgmpMIB	1.3.6.1.4.1.4874.2.2.40			The IGMP MIB for Unisphere Networks, Inc. enterprise.
usdIgmpMIBObject	1.3.6.1.4.1.4874.2.2.40.1
usdIgmpProtocol	1.3.6.1.4.1.4874.2.2.40.1.1
usdIgmpProxy	1.3.6.1.4.1.4874.2.2.40.1.2
usdIgmpProxyInterfaceTable	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.
usdIgmpProxyInterfaceEntry	1.3.6.1.4.1.4874.2.2.40.1.2.1.1		not-accessible	An entry in the usdIgmpProxyInterfaceTable.
NUM usdIgmpProxyInterfaceIfIndex	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 usdIgmpProxyInterfaceAddress	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 usdIgmpProxyInterfaceMask	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 usdIgmpProxyInterfaceState	1.3.6.1.4.1.4874.2.2.40.1.2.1.1.4	UsdIgmpProxyInterfaceState	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 usdIgmpProxyInterfaceStatus	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 usdIgmpProxyInterfaceVersion	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 usdIgmpProxyInterfaceV1RoutePresentTimeout	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 usdIgmpProxyInterfaceUnsolicitedReportInterval	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 usdIgmpProxyInterfaceTotalGroupCountEx	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 usdIgmpProxyInterfaceWrongVersionCount	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 usdIgmpProxyInterfaceV1QueryReceiveCount	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 usdIgmpProxyInterfaceV2QueryReceiveCount	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 usdIgmpProxyInterfaceV1ReportReceiveCount	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 usdIgmpProxyInterfaceV2ReportReceiveCount	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 usdIgmpProxyInterfaceV1JoinReportCount	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 usdIgmpProxyInterfaceV2JoinReportCount	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 usdIgmpProxyInterfaceLeaveReportCount	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.
usdIgmpProxyCacheTable	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.
usdIgmpProxyCacheEntry	1.3.6.1.4.1.4874.2.2.40.1.2.2.1		not-accessible	An entry in the usdIgmpProxyCacheTable.
NUM usdIgmpProxyIfIndex	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 usdIgmpProxyAddress	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.
USD usdIgmpProxyStatus	1.3.6.1.4.1.4874.2.2.40.1.2.2.1.3	UsdIgmpProxyGroupState	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 usdIgmpDelayingMember state. When the delay time expires, the IGMP proxy sends an unsolicited report and the state of this group enters usdIgmpDelayMember state.
usdIgmpConformance	1.3.6.1.4.1.4874.2.2.40.4
usdIgmpCompliances	1.3.6.1.4.1.4874.2.2.40.4.1
usdIgmpCompliance	1.3.6.1.4.1.4874.2.2.40.4.1.1			The compliance statement for entities that implement the Unisphere IGMP MIB.
usdIgmpGroups	1.3.6.1.4.1.4874.2.2.40.4.2
usdIgmpProxyInterfaceGroup	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 Unisphere product.
usdIgmpProxyCacheGroup	1.3.6.1.4.1.4874.2.2.40.4.2.2			An object providing management of IGMP proxy caches in a Unisphere product.

RFC description

Manages Unisphere ERX IGMP multicast group membership, querier configuration, and proxy settings.

Start monitoring Juniper/Unisphere ERX Edge Router (IGMP proxy version/error-counter status) 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 Unisphere-Data-IGMP-MIB