TPLINK-ETHERNETOAMPDUSTAT-MIB

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Category: Link Layer and Ethernet Protocols

Description: Monitors TP-Link switch Ethernet OAM PDU transmission and reception statistics per port.

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What Is TPLINK-ETHERNETOAMPDUSTAT-MIB?

TPLINK-ETHERNETOAMPDUSTAT-MIB is a private TP-Link enterprise MIB that monitors Ethernet OAM (IEEE 802.3ah) protocol data unit statistics on a per-port basis, tracking counts of OAM PDUs transmitted and received on each interface. It exposes performance-counter category data specific to the OAM control channel rather than general traffic statistics. Its monitoring value is squarely in the software/protocol-health domain: verifying that an OAM session is actively exchanging PDUs on a given port is a proxy for confirming the link-level OAM heartbeat is alive, so a stalled or zero PDU count indicates the OAM session (and potentially the underlying link) has failed even if the physical link still shows up. It is a companion module to TPLINK-ETHERNETOAMBASICCFG-MIB, depending on that module's per-port OAM configuration being enabled for these counters to be meaningful. It is deployed on TP-Link managed switches wherever Ethernet OAM is used to monitor link health toward a peer device, such as at a service demarcation point, and administrators can download the TPLINK-ETHERNETOAMPDUSTAT-MIB file to load into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TPLINK-ETHERNETOAMPDUSTAT-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

TP-Link managed Ethernet switch

Monitoring Examples

No sample object names were provided, but consistent with the module's stated purpose an admin would poll a per-port PDU statistics table for OAM PDUs transmitted and received counts, where a port showing OAM enabled (per TPLINK-ETHERNETOAMBASICCFG-MIB) but zero or stalled received PDU counts indicates the OAM session with the link partner has dropped, signaling a link-level fault worth investigating.

What Can Be Monitored

OAM PDUs transmitted per port
OAM PDUs received per port
OAM session activity/heartbeat status

Imported Objects

From RFC1155-SMI

Counter

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

OBJECT-TYPE

From SNMPv2-TC

DisplayString

From TPLINK-ETHERNETOAM-MIB

ethernetOamStatistics

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using ethernetOamPduStatInfoTx OID:

Select a TP-Link managed Ethernet switch (OAM PDU transmit/receive counter status) 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 ethernetOamPduStatInfoTx 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. Displays the number of information OAMPDUs transmitted on the port. 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
ethernetOamPduStatTable	1.3.6.1.4.1.11863.6.60.1.6.1		not-accessible	A table that contains the Ethernet OAM traffic information of each port.
ethernetOamPduStatEntry	1.3.6.1.4.1.11863.6.60.1.6.1.1		not-accessible	An entry that contains the Ethernet OAM traffic information of each port.
STR ethernetOamPduStatPort	1.3.6.1.4.1.11863.6.60.1.6.1.1.1	DisplayString	read-only	Displays the port number.
INT ethernetOamPduStatClear	1.3.6.1.4.1.11863.6.60.1.6.1.1.2	INTEGER	read-write	Clear the statistics of OAMPDUs.
CTR ethernetOamPduStatInfoTxEx	1.3.6.1.4.1.11863.6.60.1.6.1.1.3	Counter	read-only	Displays the number of information OAMPDUs transmitted on the port.
CTR ethernetOamPduStatInfoRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.4	Counter	read-only	Displays the number of information OAMPDUs received on the port.
CTR ethernetOamPduStatUniEventTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.5	Counter	read-only	Displays the number of unique event notification OAMPDUs transmitted on the port.
CTR ethernetOamPduStatUniEventRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.6	Counter	read-only	Displays the number of unique event notification OAMPDUs received on the port.
CTR ethernetOamPduStatDupEventTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.7	Counter	read-only	Displays the number of duplicate event notification OAMPDUs transmitted on the port.
CTR ethernetOamPduStatDupEventRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.8	Counter	read-only	Displays the number of duplicate event notification OAMPDUs received on the port.
CTR ethernetOamPduStatVarReqTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.9	Counter	read-only	Displays the number of variable request OAMPDUs transmitted on the port.
CTR ethernetOamPduStatVarReqRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.10	Counter	read-only	Displays the number of variable request OAMPDUs received on the port.
CTR ethernetOamPduStatVarRespTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.11	Counter	read-only	Displays the number of variable response OAMPDUs transmitted on the port.
CTR ethernetOamPduStatVarRespRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.12	Counter	read-only	Displays the number of variable response OAMPDUs received on the port.
CTR ethernetOamPduStatLoopbackCtrlTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.13	Counter	read-only	Displays the number of loopback control OAMPDUs transmitted on the port.
CTR ethernetOamPduStatLoopbackCtrlRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.14	Counter	read-only	Displays the number of loopback control OAMPDUs received on the port.
CTR ethernetOamPduStatOrgSpecTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.15	Counter	read-only	Displays the number of organization specific OAMPDUs transmitted on the port.
CTR ethernetOamPduStatOrgSpecRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.16	Counter	read-only	Displays the number of organization specific OAMPDUs received on the port.
CTR ethernetOamPduStatUnsupportedTx	1.3.6.1.4.1.11863.6.60.1.6.1.1.17	Counter	read-only	Displays the number of unsupported OAMPDUs transmitted on the port.
CTR ethernetOamPduStatUnsupportedRx	1.3.6.1.4.1.11863.6.60.1.6.1.1.18	Counter	read-only	Displays the number of unsupported OAMPDUs received on the port.
CTR ethernetOamPduStatFrmLostDueToOam	1.3.6.1.4.1.11863.6.60.1.6.1.1.19	Counter	read-only	Displays the number of frames that would otherwise be transmitted by the OAM sublayer, but could not be due to an internal OAM sublayer transmit error.

RFC description

Tracks Ethernet OAM protocol data unit statistics and transmission/reception counts per port on TP-Link devices.

Start monitoring TP-Link managed Ethernet switch (OAM PDU transmit/receive counter status) 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 TPLINK-ETHERNETOAMPDUSTAT-MIB