NSCRTV-EPON-IGMP-MGM-MIB

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Description: Configures IGMP snooping mode, query intervals, and membership parameters for NSCRTV EPON OLT and ONU access equipment

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What Is NSCRTV-EPON-IGMP-MGM-MIB?

NSCRTV-EPON-IGMP-MGM-MIB is a vendor/industry MIB from the NSCRTV (Chinese cable/broadcast standards body) family for configuring IGMP snooping and multicast group management behavior on EPON (Ethernet Passive Optical Network) access equipment, specifically OLT and ONU devices. It focuses on multicast control-plane configuration, exposing objects for IGMP snooping mode, query intervals, and group membership parameters rather than physical hardware sensors. In monitoring terms it is chiefly useful for verifying multicast/IPTV service configuration health on an access node -- confirming IGMP snooping is enabled and query timers are set correctly -- rather than reporting CPU, temperature, or power status. It is implicitly related to the broader NSCRTV EPON MIB family (e.g. PON tree topology MIBs) since it configures behavior for the same OLT/ONU devices those modules describe. It is typically deployed on EPON-based HFC/cable access networks used for IPTV and broadband multicast delivery in Chinese cable operator networks. Engineers can download the NSCRTV-EPON-IGMP-MGM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NSCRTV-EPON-IGMP-MGM-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

EPON OLT
EPON ONU

Monitoring Examples

No sample objects were provided for this module (module description is only the ambiguous string "IGMP??"), so a concrete polled-object monitoring scenario cannot be honestly constructed from the available data. In practice such a MIB would typically be used to confirm IGMP snooping mode and query-interval settings on each OLT/ONU port to ensure multicast IPTV streams are being forwarded correctly, but no specific object names are available to cite here.

Imported Objects

From NSCRTV-EPONEOC-EPON-MIB

AutoNegotiationTechAbility
EponAlarmCode
EponAlarmInstance
EponCardIndex
EponDeviceIndex
EponPortIndex
EponSeverityType
EponStats15MinRecordType
EponStats24HourRecordType
EponStatsThresholdType
TAddress
igmpManagementObjects	OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE
TimeTicks
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
MacAddress
RowStatus
TEXTUAL-CONVENTION
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
igmpEntityTable	1.3.6.1.4.1.17409.2.3.6.1		not-accessible	IGMP??
igmpEntityEntry	1.3.6.1.4.1.17409.2.3.6.1.1		not-accessible
INT igmpDeviceIndex	1.3.6.1.4.1.17409.2.3.6.1.1.1	INTEGER	not-accessible	????? For OLT, set to corresponding device For ONU, set to 0
INT igmpMode	1.3.6.1.4.1.17409.2.3.6.1.1.2	INTEGER	read-write	IGMP???? centralized(1) - All the multicast control is done by OLT distributedwithcm(2) - Both OLT and ONU perform IGMP proxy and controlled multicast will be enabled. At this case, if igmp joins shall follow the definition in multicastPackageList, for the port disabled(3) - Disable IGMP proxy on OLT and ONU distributedwocm(4) - Both OLT and ONU perform IGMP proxy and controlled multicast will be disabled. At this case, if igmp joins shall be accept even violate the definition in multicastPackageList, for the port.
INT maxQueryResponseTime	1.3.6.1.4.1.17409.2.3.6.1.1.3	INTEGER	read-write	?????? ??1/10 This is used for sending general query
INT robustVariable	1.3.6.1.4.1.17409.2.3.6.1.1.4	INTEGER	read-write	???? This is used for sending general query No less than 1
INT queryInterval	1.3.6.1.4.1.17409.2.3.6.1.1.5	INTEGER	read-write	???????? ?? This is used for sending general query
INT lastMemberQueryInterval	1.3.6.1.4.1.17409.2.3.6.1.1.6	INTEGER	read-write	Max Response Time inserted into Group-Specific Queries sent in response to Leave Group messages, and is also the amount of time between Group-Specific Query messages
INT lastMemberQueryCount	1.3.6.1.4.1.17409.2.3.6.1.1.7	INTEGER	read-write	Number of Group-Specific Queries sent before the router assumes there are no local members
INT igmpVersion	1.3.6.1.4.1.17409.2.3.6.1.1.8	INTEGER	read-write	IGMP???
igmpProxyParaTable	1.3.6.1.4.1.17409.2.3.6.2		not-accessible	IGMP proxy - u???
igmpProxyParaEntry	1.3.6.1.4.1.17409.2.3.6.2.1		not-accessible
INT proxyIndex	1.3.6.1.4.1.17409.2.3.6.2.1.1	INTEGER	not-accessible	IGMP Proxy - u?
OCT proxyName	1.3.6.1.4.1.17409.2.3.6.2.1.2	OCTET STRING	read-create	IGMP Proxy???????????
IP proxySrcIPAddress	1.3.6.1.4.1.17409.2.3.6.2.1.3	IpAddress	read-create	proxy??IP??
INT proxyMulticastVID	1.3.6.1.4.1.17409.2.3.6.2.1.4	INTEGER	read-create	IGMP Proxy?????VID ??????????????????VID
IP proxyMulticastIPAddress	1.3.6.1.4.1.17409.2.3.6.2.1.5	IpAddress	read-create	???IP??
U32 multicastAssuredBW	1.3.6.1.4.1.17409.2.3.6.2.1.6	Unsigned32	read-create	????? ??kbps
U32 multicastMaxBW	1.3.6.1.4.1.17409.2.3.6.2.1.7	Unsigned32	read-create	??? ??kbps
ROW proxyRowStatus	1.3.6.1.4.1.17409.2.3.6.2.1.8	RowStatus	read-create	????
igmpForwardingTable	1.3.6.1.4.1.17409.2.3.6.3		not-accessible	Multicast forwarding table
igmpForwardingEntry	1.3.6.1.4.1.17409.2.3.6.3.1		not-accessible
INT groupDeviceIndex	1.3.6.1.4.1.17409.2.3.6.3.1.1	INTEGER	not-accessible	????? For OLT, set to corresponding OLT device For ONU, set to 0
INT groupVlanIndex	1.3.6.1.4.1.17409.2.3.6.3.1.2	INTEGER	not-accessible	Vlan
MAC groupMacAddress	1.3.6.1.4.1.17409.2.3.6.3.1.3	MacAddress	not-accessible	Mac??
OCT groupPortList	1.3.6.1.4.1.17409.2.3.6.3.1.4	OCTET STRING	read-only	Forwarding port list 1. OLT ------------------------------------------------------------------- It is presented by member port list. Each member port is identified by 4-byte format, same as TC of EponDeviceIndex. The actual length of this string depends of the number of member ports in the port list. The relationship is: Length of the string = 4 * (NUM of member ports) For example, if device 1, port 1/2 and 2/3 is the member ports, then this object will be presented as: 01 01 02 00 01 02 03 00 2. ONU ------------------------------------------------------------------- It is presented by member port list. Each member port is identified by 2-byte format, One for slot ID, the last for port ID. The actual length of this string depends of the number of member ports. If the ONU is fixed (not modulized), set slot ID to 0, the NMS could ignore the slot info. Note that, slot here shall follow the last byte definition of EponCardIndex to indicate the main-slot and sub-slot index. The relationship is: Length of the string = 2 * (NUM of member ports) For example, if port 1/2 and 3/4 is the member ports of the group, then the object is presented as: 01 02 03 04
controllededMulticastTable	1.3.6.1.4.1.17409.2.3.6.4			?????
controlledMulticastUserAuthorityTable	1.3.6.1.4.1.17409.2.3.6.4.1		not-accessible	???????????
controlledMulticastUserAuthorityEntry	1.3.6.1.4.1.17409.2.3.6.4.1.1		not-accessible
EPO cmDeviceIndex	1.3.6.1.4.1.17409.2.3.6.4.1.1.1	EponDeviceIndex	not-accessible	??? For OLT, set to corresponding device/slot/port/ONU For ONU, set to 0
EPO cmCardIndex	1.3.6.1.4.1.17409.2.3.6.4.1.1.2	EponCardIndex	not-accessible	??? Set to corresponding UNI slot
EPO cmPortIndex	1.3.6.1.4.1.17409.2.3.6.4.1.1.3	EponPortIndex	not-accessible	Port ID Set to corresponding UNI port
OCT multicastPackageList	1.3.6.1.4.1.17409.2.3.6.4.1.1.4	OCTET STRING	read-create	???????. ??cmProxyList??bit??cmIndex
U32 igmpGlobalBW	1.3.6.1.4.1.17409.2.3.6.4.1.1.5	Unsigned32	read-create	IGMP???????? - ??????????? ??kbps
U32 igmpGlobalBWUsed	1.3.6.1.4.1.17409.2.3.6.4.1.1.6	Unsigned32	read-only	IGMP?????????????? - ????????????????? ??kbps
ROW cmUserAuthorityRowStatus	1.3.6.1.4.1.17409.2.3.6.4.1.1.7	RowStatus	read-create
controlledMulticastPackageTable	1.3.6.1.4.1.17409.2.3.6.4.2		not-accessible	???????
controlledMulticastPackageEntry	1.3.6.1.4.1.17409.2.3.6.4.2.1		not-accessible
INT cmIndex	1.3.6.1.4.1.17409.2.3.6.4.2.1.1	INTEGER	not-accessible
OCT cmName	1.3.6.1.4.1.17409.2.3.6.4.2.1.2	OCTET STRING	read-create	?????????
OCT cmProxyList	1.3.6.1.4.1.17409.2.3.6.4.2.1.3	OCTET STRING	read-create	?????????????Proxy?? INTERNET????????OCTET????OCTET 0, OCTET 1, ... ??OCTETbit??????bit0bit1...bit7 bitOCTET??????bit??igmpProxyParaTable?? ??proxyIndexbit????proxyIndex???????? ?????80u?proxyIndex????1..8010?????? proxy??PON????u???1,15,38??cmProxyList ??0x80 02 00 00 04 00 00 00 00 00
INT multicastUserAuthority	1.3.6.1.4.1.17409.2.3.6.4.2.1.4	INTEGER	read-create	??????permitpreviewdeny
INT maxRequestChannelNum	1.3.6.1.4.1.17409.2.3.6.4.2.1.5	INTEGER	read-create	u?
INT singlePreviewTime	1.3.6.1.4.1.17409.2.3.6.4.2.1.6	INTEGER	read-create	??????
INT totalPreviewTime	1.3.6.1.4.1.17409.2.3.6.4.2.1.7	INTEGER	read-create	??????
INT previewResetTime	1.3.6.1.4.1.17409.2.3.6.4.2.1.8	INTEGER	read-create	???????????
INT previewCount	1.3.6.1.4.1.17409.2.3.6.4.2.1.9	INTEGER	read-create	??
ROW cmRowStatus	1.3.6.1.4.1.17409.2.3.6.4.2.1.10	RowStatus	read-create	????
igmpOnuUniTable	1.3.6.1.4.1.17409.2.3.6.5		not-accessible	A list of igmpOnuUniTable entries.
igmpOnuUniEntry	1.3.6.1.4.1.17409.2.3.6.5.1		not-accessible	The igmpOnuUniEntry Information
EPO uniMvlanDeviceIndex	1.3.6.1.4.1.17409.2.3.6.5.1.1	EponDeviceIndex	not-accessible	???
EPO uniMvlanCardIndex	1.3.6.1.4.1.17409.2.3.6.5.1.2	EponCardIndex	not-accessible	???
EPO uniMvlanPortIndex	1.3.6.1.4.1.17409.2.3.6.5.1.3	EponPortIndex	not-accessible	??
OCT uniMvlanVid	1.3.6.1.4.1.17409.2.3.6.5.1.4	OCTET STRING	read-create	uni?????vlan 8
INT uniMaxMultiNum	1.3.6.1.4.1.17409.2.3.6.5.1.5	INTEGER	read-create	???
INT uniMvlanTag	1.3.6.1.4.1.17409.2.3.6.5.1.6	INTEGER	read-create	?????0 1
INT uniMvlanRowstatus	1.3.6.1.4.1.17409.2.3.6.5.1.7	INTEGER	read-create	????

RFC description

IGMP multicast management for EPON systems with device, port, and mode configuration.

Start monitoring EPON OLT/ONU (NSCRTV, IGMP snooping/multicast) 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 NSCRTV-EPON-IGMP-MGM-MIB

What Is NSCRTV-EPON-IGMP-MGM-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description