PRVT-L2TUNNELING-MIB

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Organization: BATM Advanced Communication

Last Updated: 2009-10-20

Category: Pseudowire and L2VPN

Description: Manages BATM Advanced Communication Layer 2 protocol tunneling configuration for transporting STP, VTP, and CDP across provider networks.

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What Is PRVT-L2TUNNELING-MIB?

PRVT-L2TUNNELING-MIB is a proprietary BATM Advanced Communication MIB for configuring Layer 2 protocol tunneling, a feature that lets service providers transparently carry customer control-plane protocols — such as Spanning Tree Protocol (STP), VLAN Trunking Protocol (VTP), and Cisco Discovery Protocol (CDP) — across a provider Ethernet network without the provider's own switches processing them. It defines tunneling profiles and per-protocol entries specifying the Ethertype and destination MAC address to match, plus a replacement MAC address used to encapsulate/tag the tunneled frames. The monitoring value here is primarily configuration/service-state verification rather than hardware health: administrators confirm which protocols are tunneled on a profile, that the correct Ethertype/MAC matching rules are in place, and that a profile's row status is active, since a misconfigured tunnel could cause a customer's STP topology to interact incorrectly with the provider network. It is designed for use alongside the broader BATM carrier Ethernet service and switch MIBs (e.g., PRVT-SERV-MIB, PRVT-SWITCH-MIB) that apply tunneling profiles to actual customer services. It is deployed on BATM carrier Ethernet switches at service provider network edges supporting Carrier Ethernet/Metro Ethernet services. Engineers can download the PRVT-L2TUNNELING-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in PRVT-L2TUNNELING-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 inspect prvtL2TunnProfileTable and prvtL2ProtocolsTable to confirm which protocols (via prvtL2ProtocolName, prvtL2ProtocolEthertype, and prvtL2ProtocolMAC) are configured for tunneling under a given prvtL2TunnProfileName. prvtL2ReplaceMAC shows the substitute destination MAC address used to tunnel the frame across the provider core, and verifying this matches expectations helps catch a misconfiguration that would otherwise let a customer's STP BPDUs interfere with the provider's own spanning tree. Checking prvtL2TunnProfileRowStatus confirms whether a profile is active before troubleshooting a customer service issue.

What Can Be Monitored

tunneling profile configuration
tunneled protocol/Ethertype
destination MAC matching and replacement
tunneling enable state
profile row status

Imported Objects

From PRVT-QOS-MIB

serviceAccessSwitch

OBJECT-IDENTITY

From PRVT-SERV-MIB

sapBaseInfoEntry	OBJECT-TYPE
sapEncapValue	OBJECT-TYPE
sapPortId	OBJECT-TYPE
sdpId	OBJECT-TYPE
sdpInfoEntry	OBJECT-TYPE
svcId	OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using l2TunnSapRxPackets OID:

Select a BATM Advanced Communication carrier Ethernet switch (Layer 2 protocol tunneling) 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 l2TunnSapRxPackets 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 SAP Rx L2Tunneling packets. 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
prvtL2TunnelingMIB	1.3.6.1.4.1.738.1.7.3			This document is the SNMP MIB module to manage tunneling feature, designed for service providers.
prvtL2TunnNotifications	1.3.6.1.4.1.738.1.7.3.0
prvtL2TunnObjects	1.3.6.1.4.1.738.1.7.3.1
INT prvtL2TunnEnable	1.3.6.1.4.1.738.1.7.3.1.1	INTEGER	read-write	Enable/Disable L2Tunneling feature
prvtL2TunnProfileTable	1.3.6.1.4.1.738.1.7.3.1.2		not-accessible	A Table that contain all predefined and defined profiles.
prvtL2TunnProfileEntry	1.3.6.1.4.1.738.1.7.3.1.2.1		not-accessible	An entry in this table contains a TLS tunneling profile
OCT prvtL2TunnProfileName	1.3.6.1.4.1.738.1.7.3.1.2.1.1	OCTET STRING	read-create	TLS profile name. There will be three special profiles that will represent predefined policies: - Discard-All, - Tunnel-BPDUs-only - Tunnel-All.
ROW prvtL2TunnProfileRowStatus	1.3.6.1.4.1.738.1.7.3.1.2.1.2	RowStatus	read-create	TLS profile rowStatus. It is not possible to modify the predefined profiles.
prvtL2ProtocolsTable	1.3.6.1.4.1.738.1.7.3.1.3		not-accessible	A table that contain all predefine and custom defined L2Protocols
prvtL2ProtocolsEntry	1.3.6.1.4.1.738.1.7.3.1.3.1		not-accessible	An entry is a L2 protocol with the replacement multicast MAC addresses.
OCT prvtL2ProtocolName	1.3.6.1.4.1.738.1.7.3.1.3.1.1	OCTET STRING	read-create	L2 Protocol Name. There will the follow default protocol: - xSTP - LACP/LAMP - Link OAM (802.3ah) - Port Authentication (802.1x) - E-LMI - LLDP - All other bridge block of protocols - All Bridges - GARP Block of Protocols - Provider Bridge STP.
I32 prvtL2ProtocolEthertype	1.3.6.1.4.1.738.1.7.3.1.3.1.2	Integer32	read-create	Protocol Ethertype.
OCT prvtL2ProtocolMAC	1.3.6.1.4.1.738.1.7.3.1.3.1.3	OCTET STRING	read-create	The protocol Multicast MAC address used for PDU distribution.
OCT prvtL2ReplaceMAC	1.3.6.1.4.1.738.1.7.3.1.3.1.4	OCTET STRING	read-create	Replacement multicast MAC addresses.
ROW prvtL2ProtocolRowStatus	1.3.6.1.4.1.738.1.7.3.1.3.1.5	RowStatus	read-create	prvtL2CustomProtocols RowStatus used for CREATE/DELETE the custom protocols. It is not possible to modify the predefined protocols.
prvtL2TunnProfMapProtoTable	1.3.6.1.4.1.738.1.7.3.1.4		not-accessible	A Table that contain actions configured for each L2 protcol per TLS tunneling profile.
prvtL2TunnProfMapProtoEntry	1.3.6.1.4.1.738.1.7.3.1.4.1		not-accessible	An entry in this table contain th action for specified profile and L2 protocol
INT prvtL2TunnAction	1.3.6.1.4.1.738.1.7.3.1.4.1.1	INTEGER	read-write	Define action discard/tunnel per TLS tunneled protocol
prvtL2TunnSAPPointsTable	1.3.6.1.4.1.738.1.7.3.1.5		not-accessible	A Table that contain an assigment of a profile to a SAP.
prvtL2TunnSAPPointsEntry	1.3.6.1.4.1.738.1.7.3.1.5.1		not-accessible	An entry in this table contain information about the map between SAP and L2Tunneling profile.
OCT profileSAP	1.3.6.1.4.1.738.1.7.3.1.5.1.1	OCTET STRING	read-write	Profile Id associated to a SAP point. Setting this object with an empty string will disable the profile.
prvtL2TunnSDPPointsTable	1.3.6.1.4.1.738.1.7.3.1.6		not-accessible	A Table that contain an assigment of a profile to a SDP.
prvtL2TunnSDPPointsEntry	1.3.6.1.4.1.738.1.7.3.1.6.1		not-accessible	An entry in this table contain information about the map between SDP and L2Tunneling profile.
OCT profileSDP	1.3.6.1.4.1.738.1.7.3.1.6.1.1	OCTET STRING	read-write	Profile Id associated to an SDP point. Setting this object with an empty string will disable the profile.
INT prvtL2TunnClearStatistics	1.3.6.1.4.1.738.1.7.3.1.7	INTEGER	read-write	Clear L2Tunneling statistics for each tunneling point
prvtL2TunnSapStatisticsTable	1.3.6.1.4.1.738.1.7.3.1.8		not-accessible	A Table that provide statistics for each tunneling point per protocol.
prvtL2TunnSapStatisticsEntry	1.3.6.1.4.1.738.1.7.3.1.8.1		not-accessible	An entry in this table contain the number of SAP tunneling RX and TX packets .
C32 l2TunnSapRxPacketsEx	1.3.6.1.4.1.738.1.7.3.1.8.1.1	Counter32	read-only	The number of SAP Rx L2Tunneling packets
C32 l2TunnSapTxPackets	1.3.6.1.4.1.738.1.7.3.1.8.1.2	Counter32	read-only	The number of SAP Tx L2Tunneling packets
prvtL2TunnSdpStatisticsTable	1.3.6.1.4.1.738.1.7.3.1.9		not-accessible	A Table that provide statistics for each tunneling point per protocol.
prvtL2TunnSdpStatisticsEntry	1.3.6.1.4.1.738.1.7.3.1.9.1		not-accessible	An entry in this table contain the number of SDP tunneling RX and TX packets .
C32 l2TunnSdpRxPackets	1.3.6.1.4.1.738.1.7.3.1.9.1.1	Counter32	read-only	The number of SDP Rx L2Tunneling packets
C32 l2TunnSdpTxPackets	1.3.6.1.4.1.738.1.7.3.1.9.1.2	Counter32	read-only	The number of SDP Tx L2Tunneling packets
prvtL2TunnConformance	1.3.6.1.4.1.738.1.7.3.2
prvtL2TunnCompliances	1.3.6.1.4.1.738.1.7.3.2.1
prvtL2TunnCompliance	1.3.6.1.4.1.738.1.7.3.2.1.1			The compliance statement for L2Tunneling.
prvtL2TunnGroups	1.3.6.1.4.1.738.1.7.3.2.2
prvtL2TunnProtocolGroup	1.3.6.1.4.1.738.1.7.3.2.2.1			The group of objects regarding Layer 2 protocol with a special MAC address .
prvtL2TunnProfileGroup	1.3.6.1.4.1.738.1.7.3.2.2.2			The group of objects used to configure a L2Tunneling profile .
prvtL2TunnPointGroup	1.3.6.1.4.1.738.1.7.3.2.2.3			The group of objects used L2Tunneling point .

RFC description

Manages Layer 2 tunneling features on BATM/Telco Systems service provider equipment.

Start monitoring BATM Advanced Communication carrier Ethernet switch (Layer 2 protocol tunneling) 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-L2TUNNELING-MIB