BAY-STACK-IGMP-EXT-MIB

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Organization: Nortel Ltd.

Last Updated: 2009-10-26

Category: VLAN and Bridging, Vendor: Avaya

Description: Extends IGMP snooping configuration and multicast group membership tracking on Avaya/Nortel ERS switches.

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What Is BAY-STACK-IGMP-EXT-MIB?

BAY-STACK-IGMP-EXT-MIB is a Nortel proprietary MIB extending the standard IGMP MIBs with port/VLAN-based multicast filtering on BayStack switches. It exposes filter-profile tables (profile ID, type, applicable port list) and separate range tables constraining which multicast group ranges a profile permits or denies, along with a counter of packets dropped by each filter. As a configuration/performance MIB it lets an administrator confirm a multicast filter profile's port scope and group range are correct, and watch the dropped-packet counter to verify the filter is actually being enforced. It is deployed on Nortel BayStack switches doing multicast group filtering. Engineers can download the BAY-STACK-IGMP-EXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BAY-STACK-IGMP-EXT-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

Nortel BayStack switches

Monitoring Examples

An administrator checks bsIgmpExtFilterProfileDroppedPackets alongside the profile's configured port list and group range to confirm a multicast filter is actively blocking the intended traffic rather than passing it through unfiltered.

What Can Be Monitored

multicast filter profile scope (ports/group ranges)
packets dropped per filter

Imported Objects

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From Q-BRIDGE-MIB

PortList

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

From SYNOPTICS-ROOT-MIB

bayStackMibs

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using bsIgmpExtFilterProfileDroppedPackets OID:

Select an Avaya/Nortel BayStack Ethernet Routing Switch (ERS) (legacy) 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 bsIgmpExtFilterProfileDroppedPackets 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 packets that were matched by this profile and dropped. 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
bayStackIgmpExtMib	1.3.6.1.4.1.45.5.32			This MIB module is an extension to the standard IGMP MIBs.
bsIgmpExtNotifications	1.3.6.1.4.1.45.5.32.0
bsIgmpExtObjects	1.3.6.1.4.1.45.5.32.1
bsIgmpExtFilterProfileTable	1.3.6.1.4.1.45.5.32.1.1		not-accessible	This table contains IGMP filter profile information.
bsIgmpExtFilterProfileEntry	1.3.6.1.4.1.45.5.32.1.1.1		not-accessible	An entry representing an IGMP filter profile.
I32 bsIgmpExtFilterProfileId	1.3.6.1.4.1.45.5.32.1.1.1.1	Integer32	not-accessible	A unique integer value used to identify entries in this table.
INT bsIgmpExtFilterProfileType	1.3.6.1.4.1.45.5.32.1.1.1.2	INTEGER	read-create	This value indicates whether IGMP messages from the address ranges in this profile are allowed or denied.
POR bsIgmpExtFilterProfilePortList	1.3.6.1.4.1.45.5.32.1.1.1.3	PortList	read-create	The list of ports to which this profile applies.
ROW bsIgmpExtFilterProfileRowStatus	1.3.6.1.4.1.45.5.32.1.1.1.4	RowStatus	read-create	This object is used to create/delete entries in this table.
C32 bsIgmpExtFilterProfileDroppedPacketsEx	1.3.6.1.4.1.45.5.32.1.1.1.5	Counter32	read-only	The number of packets that were matched by this profile and dropped.
bsIgmpExtFilterRangeTable	1.3.6.1.4.1.45.5.32.1.2		not-accessible	This table contains IGMP filter profile address ranges.
bsIgmpExtFilterRangeEntry	1.3.6.1.4.1.45.5.32.1.2.1		not-accessible	An entry containing an IGMP filter profile address range.
I32 bsIgmpExtFilterRangeId	1.3.6.1.4.1.45.5.32.1.2.1.1	Integer32	not-accessible	An integer value used to uniquely identify entries in this table within a particular IGMP filter profile.
IPt bsIgmpExtFilterRangeAddressType	1.3.6.1.4.1.45.5.32.1.2.1.2	InetAddressType	read-create	This value indicates the type of address contained in the corresponding instances of bsIgmpExtFilterRangeAddressStart and bsIgmpExtFilterRangeAddressEnd. Currently only values of ipv4(1) and ipv6(2) are allowed.
IP bsIgmpExtFilterRangeAddressStart	1.3.6.1.4.1.45.5.32.1.2.1.3	InetAddress	read-create	The starting address of this range. Only multicast addresses are allowed.
IP bsIgmpExtFilterRangeAddressEnd	1.3.6.1.4.1.45.5.32.1.2.1.4	InetAddress	read-create	The ending address of this range. Only multicast addresses are allowed.
ROW bsIgmpExtFilterRangeRowStatus	1.3.6.1.4.1.45.5.32.1.2.1.5	RowStatus	read-create	This object is used to create/delete entries in this table.
bsIgmpExtFilterProfileScalars	1.3.6.1.4.1.45.5.32.1.3
I32 bsIgmpExtFilterProfileClearStats	1.3.6.1.4.1.45.5.32.1.3.1	Integer32	read-write	This object is used to clear IGMP profile statistics. Setting it to a particular profile ID will clear statistics for that profile. Setting it to 0 will clear statistics for all profiles. When read, the value is always 0.
bsIgmpExtScalars	1.3.6.1.4.1.45.5.32.1.4
G32 bsIgmpExtAvailableHardwareResources	1.3.6.1.4.1.45.5.32.1.4.1	Gauge32	read-only	This object returns the number of available hardware resources for IGMP.
INT bsIgmpExtHardwareCompatibilityMode	1.3.6.1.4.1.45.5.32.1.4.2	INTEGER	read-write	This object is used to set the 5510 hardware compatilibity mode for IGMP.

RFC description

Extends standard IGMP MIBs with additional filter profiles and hardware resource management for Nortel switches.

Start monitoring Avaya/Nortel BayStack Ethernet Routing Switch (ERS) (legacy) 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 BAY-STACK-IGMP-EXT-MIB