CISCO-WAN-BBIF-ILMI-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2002-12-20

Category: ATM, Vendor: Cisco Devices

Description: Manages Cisco WAN broadband interface ILMI (Interim Local Management Interface) for ATM signaling.

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What Is CISCO-WAN-BBIF-ILMI-MIB?

CISCO-WAN-BBIF-ILMI-MIB configures and reports ILMI (Interim Local Management Interface) status for broadband (ATM logical port) interfaces on the PXM1 service module in Cisco MGX82xx WAN switches. ILMI is the ATM signaling protocol used for address registration and interface status exchange between an ATM switch and attached devices. It exposes configuration such as whether ILMI is enabled, the signaling VPI/VCI, address prefix, customer ID, protocol revision, and trap-related settings, making it primarily a software-configuration/status MIB rather than a raw hardware-counter MIB, used to confirm ILMI signaling is correctly enabled and configured on each broadband port and that trap notifications for ILMI state changes are appropriately throttled. It pairs with CISCO-WAN-BBIF-ATM-CONN-STAT-MIB, both scoped to the same PXM1 broadband interface hardware, and relies on general ATM Forum ILMI concepts rather than a specific IETF ILMI MIB. It is used in legacy Cisco MGX82xx ATM WAN switch deployments requiring ILMI-based address/status signaling, and engineers supporting these switches typically start with a CISCO-WAN-BBIF-ILMI-MIB download to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-WAN-BBIF-ILMI-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

Cisco MGX82xx PXM1 service module broadband ATM interfaces

Monitoring Examples

An operator would check bbIfIlmiEnable and bbIfSignallingProtocolType in bbIfCnfSigILMIGrpTable, indexed by bbIfSigPortNum, to confirm ILMI is active and using the expected signaling protocol on a given broadband port, and verify bbIfSignallingVpi/bbIfSignallingVci match the provisioned signaling channel. If bbIfIlmiTrapEnable is set but bbIfMinTrapInterval is misconfigured, ILMI state-change traps could be suppressed or flood the NMS.

What Can Be Monitored

ILMI enable status
signaling protocol type and VPI/VCI
address prefix and customer ID
trap enable state and minimum trap interval

Imported Objects

From ATM-TC-MIB

AtmIlmiNetworkPrefix

From BASIS-MIB

bbIfCnf	OBJECT-IDENTITY
bbIfCnt	OBJECT-IDENTITY

From CISCOWAN-SMI

ciscoWan

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using bbIfSnmpPduReceived OID:

Select a Cisco MGX ATM service module 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 bbIfSnmpPduReceived 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 snmp packets received on this logical interface. 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
ATM bbIfAddrPrefix	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.6	AtmIlmiNetworkPrefix	read-write	Network Prefix for the ATM address.
INT bbIfAddrRegEnable	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.16	INTEGER	read-write	Enable/disable ILMI Address Registration.
C32 bbIfAsn1ParseError	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.12	Counter32	read-only	The number of parse errors on ASN.1.
bbIfCnfSigILMIGrp	1.3.6.1.4.1.351.110.5.2.6.1.2
bbIfCnfSigILMIGrpEntry	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1		not-accessible	An entry for a boradband interface used as a UNI port. Each entry contains ILMI configuration parameters and variables for a broadband interface.
bbIfCnfSigILMIGrpTable	1.3.6.1.4.1.351.110.5.2.6.1.2.1		not-accessible	This table contains ILMI configuration parameters for a broadband interface.
bbIfCntSigILMIGrp	1.3.6.1.4.1.351.110.5.2.6.4.2
bbIfCntSigILMIGrpEntry	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1		not-accessible	An entry for a boradband interface used as a UNI port.
bbIfCntSigILMIGrpTable	1.3.6.1.4.1.351.110.5.2.6.4.2.1		not-accessible	This table contains statistics related to ILMI.
I32 bbIfCustomerId	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.7	Integer32	read-write	This represents the customer Id.
I32 bbIfErrorThresholdN491	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.12	Integer32	read-write	This object specifies Error Threshold (N491) value. The number of keep alive polls that must fail within a window of N491 polls, before the port is placed in the failed state. This attribute is applicable only when bbIfSignallingProtocolType set to iLMI(3).
I32 bbIfEventThresholdN492	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.13	Integer32	read-write	This object specifies Error Threshold (N492) value. The number of keep alive polls that must fail within a window of N492 polls, before the port is placed in the failed state. This attribute is applicable only when bbIfSignallingProtocolType set to iLMI(3).
C32 bbIfGetNextRequestReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.4	Counter32	read-only	The number of get-next messages received.
C32 bbIfGetRequestReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.3	Counter32	read-only	The number of get request messages received.
C32 bbIfGetRequestTransmitted	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.9	Counter32	read-only	The number of Keep Alive get request messages transmitted.
C32 bbIfGetResponseReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.7	Counter32	read-only	The number of Keep Alive response messages received.
C32 bbIfGetResponseTransmitted	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.8	Counter32	read-only	The number of response messages transmitted.
INT bbIfIlmiEnable	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.2	INTEGER	read-write	The logical interface is a generic entity, it can be used as either a virtual trunk, or user port with UNI support. This variable is provided to enable/disable ILMI. ILMI should only be enabled on 'user ports' and not on 'virtual trunks' 1 - disable 2 - enable
INT bbIfIlmiTrapEnable	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.9	INTEGER	read-write	This object is used for enabling/disabling the sending of ILMI traps.
C32 bbIfInvalidPDUReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.11	Counter32	read-only	The number of invalid PDUs received.
INT bbIfKeepAlivePollingEnable	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.11	INTEGER	read-write	Enable/disable Keep Alive Polling.
I32 bbIfMinEnquiryIntervalT493	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.15	Integer32	read-write	This object specifies minimum Enquiry Interval(T493) value. The T493 value is the number of seconds between each keep alive poll transmitted by port. This attribute is applicable only when bbIfSignallingProtocolType set to iLMI(3).
I32 bbIfMinTrapInterval	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.10	Integer32	read-write	This object specifies the minimum throttling period of notification generation. The notificaton events should be suppressed by the agent until the current throttling period expires.
C32 bbIfNoSuchNameError	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.13	Counter32	read-only	The number of errors for name not present.
INT bbIfPollingIntervalT491	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.14	INTEGER	read-write	This object specifies Polling Interval (T491) value. The T491 value is the number of seconds between each keep alive poll transmitted by port. This attribute is applicable only when bbIfSignallingProtocolType set to iLMI(3).
I32 bbIfProtocolRevNo	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.8	Integer32	read-write	This object represents the protocol revision number.
C32 bbIfSetRequestReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.5	Counter32	read-only	The number of set messages received.
INT bbIfSigCntClrButton	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.15	INTEGER	read-write	Writing a value of 2 resets all the counters from bbIfCntSigILMIGrpTable.
INT bbIfSignallingProtocolType	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.3	INTEGER	read-write	This will set the signalling protocol other(1) : other noSignalling(2) : noSignalling iLMI(3) : ILMI
I32 bbIfSignallingVci	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.5	Integer32	read-write	This object specifies the VPI on which signalling cells received.
I32 bbIfSignallingVpi	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.4	Integer32	read-write	This object specifies the VPI on which signalling cells received.
I32 bbIfSigPortNum	1.3.6.1.4.1.351.110.5.2.6.1.2.1.1.1	Integer32	read-only	This object refers to the broadband interface. The value for this object is same as value specified in bbIfNum object from bbIfCnfGrpTable.
C32 bbIfSnmpPduReceivedEx	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.2	Counter32	read-only	The number of snmp packets received on this logical interface.
C32 bbIfTooBigError	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.14	Counter32	read-only	The number of messages received with len > 484.
C32 bbIfTrapReceived	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.6	Counter32	read-only	The number of traps received.
C32 bbIfTrapTransmitted	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.10	Counter32	read-only	The number of trap messages transmitted.
ciscoWanBbifIlmiMIB	1.3.6.1.4.1.351.150.33			The MIB module for ILMI configuration and ILMI statistics for broad band interface ports in PXM1 service module. PXM1 service module is supported in MGX82xx series products. The broadband interface referred to in this mib is for ATM logical ports.
cwbIlmiCompliance	1.3.6.1.4.1.351.150.33.2.2.1			The compliance statement for objects related to SRM MIB.
cwbIlmiConfGroup	1.3.6.1.4.1.351.150.33.2.1.1			The collection of objects which are used for configuring ILMI on broad band interface ports.
cwbIlmiMIBCompliances	1.3.6.1.4.1.351.150.33.2.2
cwbIlmiMIBConformance	1.3.6.1.4.1.351.150.33.2
cwbIlmiMIBGroups	1.3.6.1.4.1.351.150.33.2.1
cwbIlmiStatsGroup	1.3.6.1.4.1.351.150.33.2.1.2			The collection of objects containing the ILMI statistics on broad band interface ports.
I32 sigCntBbIfNum	1.3.6.1.4.1.351.110.5.2.6.4.2.1.1.1	Integer32	read-only	This object refers to the broadband interface. The value for this object is same as value specified in bbIfSigPortNum object from bbIfCnfSigILMIGrpTable.

RFC description

MIB for Integrated Local Management Interface (ILMI) configuration on ATM broadband interfaces.

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Download CISCO-WAN-BBIF-ILMI-MIB