PRVT-ELMI-MIB

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Organization: BATM Advanced Communication

Last Updated: 2009-07-13

Category: Carrier Ethernet

Description: Manages BATM Advanced Communication Ethernet Local Management Interface (E-LMI) configuration and UNI status notification.

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What Is PRVT-ELMI-MIB?

PRVT-ELMI-MIB is a proprietary BATM Advanced Communication MIB implementing management for Ethernet Local Management Interface (E-LMI), a MEF-defined protocol used between customer-edge (UNI-C) and provider-edge (UNI-N) devices to communicate Ethernet Virtual Connection (EVC) status. It provides per-interface configuration objects (polling counters, polling and verification timers, operating mode) and statistics tracking for E-LMI protocol exchanges. Monitoring-wise, this MIB concerns the operational/software health of the E-LMI protocol session rather than physical hardware: it lets an operator confirm that status polling between customer and provider equipment is succeeding and that UNI status is being correctly communicated, with prvtELMIClearStatistics available to reset counters during troubleshooting. As an E-LMI implementation it depends conceptually on the MEF Ethernet service model and is typically paired with EVC/service MIBs (such as PRVT-SERV-MIB) on the same platform. It is deployed on BATM carrier Ethernet switches at the network-to-customer boundary (UNI) in Carrier Ethernet service deployments. Network engineers evaluating or troubleshooting this functionality can download the PRVT-ELMI-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PRVT-ELMI-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

BATM Advanced Communication carrier Ethernet switch

Monitoring Examples

An operator would check prvtELMICfgTable entries for prvtELMIIfEnable and prvtELMIIfMode to confirm E-LMI is active and correctly configured (UNI-N or UNI-C) on a given interface, then review prvtELMIStatisticsTable to see whether polling and status enquiries are being answered within the configured prvtELMIPollingTimer. A rising prvtELMIStatusCnt of failed or unanswered polls would indicate a communication breakdown with the customer-edge device, prompting a check of physical connectivity. prvtELMIClearStatistics lets an admin reset the counters after resolving an issue to get a clean baseline.

What Can Be Monitored

E-LMI interface enable/mode
polling counter/timer configuration
E-LMI status poll success/failure counts
UNI status communication health

Imported Objects

From IF-MIB

InterfaceIndex
ifIndex	OBJECT-TYPE

From PRVT-SWITCH-MIB

switch

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
transmission

From SNMPv2-TC

RowStatus
StorageType
TEXTUAL-CONVENTION
TimeStamp
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
prvtELMIMib	1.3.6.1.4.1.738.1.5.120			This MIB contains managed object definitions for encapsulating E-LMI that is terminated by the UNI-C on the CE side of the UNI and by the UNI-N on the MEN side of the UNI.
prvtELMINotifications	1.3.6.1.4.1.738.1.5.120.0
NTF prvtELMIStatus	1.3.6.1.4.1.738.1.5.120.0.1			This notification is sent when status of ELMI changes.
NTF prvtELMIChangeEVC	1.3.6.1.4.1.738.1.5.120.0.2			This notification is sent when status of CE-VLAN ID/EVC Map per interface changes.
prvtELMIObjects	1.3.6.1.4.1.738.1.5.120.1
INT prvtELMIEnable	1.3.6.1.4.1.738.1.5.120.1.1	INTEGER	read-write	E-LMI enable protocol
prvtELMICfgTable	1.3.6.1.4.1.738.1.5.120.1.2		not-accessible	This table contains object for configuring E-LMI protocol.
prvtELMICfgEntry	1.3.6.1.4.1.738.1.5.120.1.2.1		not-accessible
INT prvtELMIIfEnable	1.3.6.1.4.1.738.1.5.120.1.2.1.1	INTEGER	read-write	Enables or disables E-LMI feature per interface.
INT prvtELMIIfMode	1.3.6.1.4.1.738.1.5.120.1.2.1.2	INTEGER	read-write	E-LMI working mode per interface.
INT prvtELMIPollingCnt	1.3.6.1.4.1.738.1.5.120.1.2.1.3	INTEGER	read-write	Polling counter - controls the number of polling cycles between Full Status exchanges. Aplicable only in UNI-C mode
INT prvtELMIPollingTimer	1.3.6.1.4.1.738.1.5.120.1.2.1.4	INTEGER	read-write	Polling timer - controls the interval at which STATUS ENQUIRY messages are transmitted. Aplicable only in UNI-C mode
INT prvtELMIVerifPollTimer	1.3.6.1.4.1.738.1.5.120.1.2.1.5	INTEGER	read-write	Polling Verification Timer - controls the interval during which information sent to the UNI-C in a STATUS message is consider valid. The Polling Verification Timer MAY be disabled and thus the PVT never expires. Polling Verification Timer is valid only for UNI-N mode. For disable the counter SET 0 value
INT prvtELMIStatusCnt	1.3.6.1.4.1.738.1.5.120.1.2.1.6	INTEGER	read-write	Status Counter - controls the number of consecutive errors that must occur before E-LMI at the UNI is declared as not operational. Aplicable in both UNI-Cand UNI-N mode
INT prvtELMIClearStatistics	1.3.6.1.4.1.738.1.5.120.1.2.1.7	INTEGER	read-write	Clear ELMI statistics per interface.
INT prvtELMIMapEvcCEVlanType	1.3.6.1.4.1.738.1.5.120.1.2.1.8	INTEGER	read-only	CE-VLAN ID/EVC Map Type .
prvtELMIStatisticsTable	1.3.6.1.4.1.738.1.5.120.1.3		not-accessible	This table contains objects for displaing E-LMI statistics.
prvtELMIStatisticsEntry	1.3.6.1.4.1.738.1.5.120.1.3.1		not-accessible
INT prvtELMIStatusChange	1.3.6.1.4.1.738.1.5.120.1.3.1.1	INTEGER	read-only	E-LMI operational status
TIM prvtELMILastFullReport	1.3.6.1.4.1.738.1.5.120.1.3.1.2	TimeStamp	read-only	E-LMI Time of the last full status report.
INT prvtELMITimeOuts	1.3.6.1.4.1.738.1.5.120.1.3.1.3	INTEGER	read-only	Number of Status Timeouts.
INT prvtELMIMsgISN	1.3.6.1.4.1.738.1.5.120.1.3.1.4	INTEGER	read-only	Number of messages with Invalid Sequence Number.
INT prvtELMIInavlidProtocolVers	1.3.6.1.4.1.738.1.5.120.1.3.1.5	INTEGER	read-only	Invalid Protocol Version.
INT prvtELMIEVCInvalidRefId	1.3.6.1.4.1.738.1.5.120.1.3.1.6	INTEGER	read-only	Invalid Ethernet Virtual Connection Reference Id.
INT prvtELMIInavlidMsgType	1.3.6.1.4.1.738.1.5.120.1.3.1.7	INTEGER	read-only	Invalid Message Type.
INT prvtELMIOOSIE	1.3.6.1.4.1.738.1.5.120.1.3.1.8	INTEGER	read-only	Out of Sequence IE.
INT prvtELMIDuplicateIE	1.3.6.1.4.1.738.1.5.120.1.3.1.9	INTEGER	read-only	Duplicate IE.
INT prvtELMIMandatoryIEMissing	1.3.6.1.4.1.738.1.5.120.1.3.1.10	INTEGER	read-only	Mandatory IE Missing.
INT prvtELMIInavlidMandatoryIE	1.3.6.1.4.1.738.1.5.120.1.3.1.11	INTEGER	read-only	Invalid Mandatory IE.
INT prvtELMIInvalidNonMandatoryIE	1.3.6.1.4.1.738.1.5.120.1.3.1.12	INTEGER	read-only	Invalid non-Mandatory IE.
INT prvtELMIUnrecognizedIE	1.3.6.1.4.1.738.1.5.120.1.3.1.13	INTEGER	read-only	Unrecognized IE.
INT prvtELMIUnexpectedIE	1.3.6.1.4.1.738.1.5.120.1.3.1.14	INTEGER	read-only	Unexpected IE.
INT prvtELMIShortMessage	1.3.6.1.4.1.738.1.5.120.1.3.1.15	INTEGER	read-only	Short Message.
prvtELMIEVCTable	1.3.6.1.4.1.738.1.5.120.1.4		not-accessible	This table contains objects for displaing EVC informations.
prvtELMIEVCEntry	1.3.6.1.4.1.738.1.5.120.1.4.1		not-accessible	An entry display information about EVC.
INT prvtELMIEVCId	1.3.6.1.4.1.738.1.5.120.1.4.1.1	INTEGER	accessible-for-notify	An integer that uniquely identifies EVC Refernces id.
U32 prvtELMIServicesId	1.3.6.1.4.1.738.1.5.120.1.4.1.2	Unsigned32	read-only	An integer that uniquely identifies Services id.
INT prvtELMIEVCStatus	1.3.6.1.4.1.738.1.5.120.1.4.1.3	INTEGER	read-only	EVC State.
INT prvtELMIEVCType	1.3.6.1.4.1.738.1.5.120.1.4.1.4	INTEGER	read-only	EVC Type.
prvtELMIMapEvcCEVlanTable	1.3.6.1.4.1.738.1.5.120.1.5		not-accessible	This table contains objects for displaying the map between EVC and CE-VLAN
prvtELMIMapEvcCEVlanEntry	1.3.6.1.4.1.738.1.5.120.1.5.1		not-accessible	An entry links EVC id with CE-VLAN id.
INT prvtELMIMapEVCId	1.3.6.1.4.1.738.1.5.120.1.5.1.1	INTEGER	read-only	An integer that uniquely identifies EVC id.
INT prvtELMIMapCeVlanId	1.3.6.1.4.1.738.1.5.120.1.5.1.2	INTEGER	read-only	An integer that uniquely identifies CE-VLAN id.
prvtELMIConformance	1.3.6.1.4.1.738.1.5.120.2

RFC description

Manages Ethernet LAN Management Interface (E-LMI) terminated by UNI-C/UNI-N endpoints.

Start monitoring BATM Advanced Communication carrier Ethernet switch (E-LMI protocol) 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 PRVT-ELMI-MIB

What Is PRVT-ELMI-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description