WWP-OAM-MIB

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Organization: World Wide Packets, Inc

Last Updated: 2005-08-19

Category: World Wide Packets Metro Ethernet

Description: Manages World Wide Packets Ethernet OAM link event notification, fault detection, and loopback operations.

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What Is WWP-OAM-MIB?

WWP-OAM-MIB is a World Wide Packets (Ciena LEOS) proprietary MIB implementing Ethernet Operations, Administration and Maintenance (OAM) as defined by IEEE 802.3ah (Ethernet in the First Mile), covering link-level fault detection, event notification, and remote loopback control. It exposes configuration data (OAM mode, loopback enable settings) and operational/status data such as link fault indications and OAM peer discovery state. Its core monitoring value is link-health fault detection at the physical/data-link layer — detecting conditions like critical link events, dying gasp, or link fault signals from a remote OAM peer, and supporting remote loopback tests to isolate a faulty segment, which is directly analogous to monitoring hardware link status. It explicitly implements the IEEE 802.3ah Clause 30 OAM standard, so it depends on that IEEE specification for its data model and semantics. It is deployed on World Wide Packets/Ciena LEOS Ethernet access devices used in first-mile/last-mile Metro Ethernet links where remote fault detection without physical site visits is valuable. Network engineers evaluating or troubleshooting this functionality can download the WWP-OAM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in WWP-OAM-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

World Wide Packets / Ciena LEOS Ethernet access device
IEEE 802.3ah-compliant Ethernet equipment

Monitoring Examples

No sample object names were supplied for this module; based on the 802.3ah-derived description, the relevant objects would be a per-port OAM status entry (peer discovery state, loopback status) and event/fault indication objects (e.g., link fault, dying gasp, critical event flags). An admin would poll the per-port OAM peer status to confirm the remote end is discovered and responsive, and a link fault or dying-gasp indication would reveal an imminent or occurred failure on that Ethernet segment, prompting a remote loopback test to isolate the problem.

What Can Be Monitored

OAM peer discovery status
link fault/critical event indication
dying gasp notification
remote loopback test control/status

Imported Objects

From SNMPv2-CONF

NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TimeStamp

From WWP-SMI

wwpModules

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
I32 wwpMaxOamPduSize	1.3.6.1.4.1.6141.2.400.1.2.1.1.4	Integer32	read-only	The largest OAMPDU that the OAM entity supports. OAM entities exchange maximum OAMPDU sizes and negotiate to use the smaller of the two maximum OAMPDU sizes between the peers. This value is determined by the local implementation.
INT wwpOamAdminState	1.3.6.1.4.1.6141.2.400.1.2.1.1.1	INTEGER	read-write	This object is used to provision the default administrative OAM mode for this interface. This object represents the desired state of OAM for this interface. The wwpOamAdminState always starts in the disabled(1) state until an explicity management action or configuration information retained by the system causes a transition to the enabled(2) state. Note that the value of this object is ignored when the interface is not operating in full-duplex mode. OAM is not supported on half-duplex links.
wwpOamCompls	1.3.6.1.4.1.6141.2.400.1.1.2
wwpOamConf	1.3.6.1.4.1.6141.2.400.1.1
U32 wwpOamConfigRevision	1.3.6.1.4.1.6141.2.400.1.2.1.1.5	Unsigned32	read-only	The configuration revision of the OAM entity as reflected in the latest OAMPDU sent by the OAM entity. The config revision is used by OAM entities to indicate configuration changes have occured which might require the peer OAM entity to re-evaluate whether the peering is allowed. See local_satisfied in [802.3ah, 57.3.1.2].
INT wwpOamCriticalEventEnable	1.3.6.1.4.1.6141.2.400.1.2.6.1.12	INTEGER	read-write	Indicates whether the local device should attempt to indicate a critical event fault via the OAMPDU flags field to its peer OAM entity. If the system does not support critical event capability, setting this object has no effect, and reading the object should always result in 'disabled(2)'. By default, this object should have the value disabled(2) for Ethernet like interfaces that support OAM. If the OAM layer does not support event notifications (as indicated via the wwpOamFunctionsSupported attribute), this value is ignored.
C32 wwpOamDuplicateEventNotificationRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.18	Counter32	read-only	A count of the number of duplicate Event OAMPDUs received on this interface. Event notification OAMPDUs may be sent in duplicate to increase the probability of successfully being received, given the possiblity that a frame may be lost in transit. An Event Notification OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Event code. A duplicate Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is identical to the previously received Event Notification OAMPDU Sequence Number. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamDuplicateEventNotificationTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.17	Counter32	read-only	A count of the number of duplicate Event OAMPDUs transmitted on this interface. Event notification OAMPDUs may be sent in duplicate to increase the probability of successfully being received, given the possiblity that a frame may be lost in transit. An Event Notification OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Event code. A duplicate Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is identical to the previously transmitted Event Notification OAMPDU Sequence Number. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
INT wwpOamDyingGaspEnable	1.3.6.1.4.1.6141.2.400.1.2.6.1.11	INTEGER	read-write	Indicates whether the local device should attempt to indicate a dying gasp fault via the OAMPDU flags field to its peer OAM entity. If the system does not support dying gasp capability, setting this object has no effect, and reading the object should always result in 'disabled(2)'. By default, this object should have the value disabled(2) for Ethernet like interfaces that support OAM. If the OAM layer does not support event notifications (as indicated via the wwpOamFunctionsSupported attribute), this value is ignored.
wwpOamEntry	1.3.6.1.4.1.6141.2.400.1.2.1.1		not-accessible	Description.
INT wwpOamErrFrameEvNotifEnable	1.3.6.1.4.1.6141.2.400.1.2.6.1.7	INTEGER	read-write	Indicates whether the occurence of an Errored Frame Event should result in an Event Notification OAMPDU generated by the OAM layer. By default, this object should have the value disabled(2) for Ethernet like interfaces that support OAM. If the OAM layer does not support event notifications (as indicated via the wwpOamFunctionsSupported attribute), this value is ignored.
INT wwpOamErrFramePeriodEvNotifEnable	1.3.6.1.4.1.6141.2.400.1.2.6.1.4	INTEGER	read-write	Indicates whether the occurence of an Errored Frame Period Event should result in an Event Notification OAMPDU generated by the OAM layer. By default, this object should have the value disabled(2) for Ethernet like interfaces that support OAM. If the OAM layer does not support event notifications (as indicated via the wwpOamFunctionsSupported attribute), this value is ignored.
U32 wwpOamErrFramePeriodThreshold	1.3.6.1.4.1.6141.2.400.1.2.6.1.3	Unsigned32	read-write	The number of frame errors that must occur for this event to be triggered. The default value is one frame error. If wwpOamErrFramePeriodThreshold frame errors occur within a window of wwpOamErrFramePeriodWindow frames, an Event Notification OAMPDU should be generated with an Errored Frame Period Event TLV indicating the threshold has been crossed in this window.
U32 wwpOamErrFramePeriodWindow	1.3.6.1.4.1.6141.2.400.1.2.6.1.2	Unsigned32	read-write	The number of frames over which the threshold is defined. The default value of the window is the number of minimum size Ethernet frames that can be received over the physical layer in one second. If wwpOamErrFramePeriodThreshold frame errors occur within a window of wwpOamErrFramePeriodWindow frames, an Event Notification OAMPDU should be generated with an Errored Frame Period Event TLV indicating the threshold has been crossed in this window.
INT wwpOamErrFrameSecsEvNotifEnable	1.3.6.1.4.1.6141.2.400.1.2.6.1.10	INTEGER	read-write	Indicates whether the occurence of an Errored Frame Seconds Summary Event should result in an Event Notification OAMPDU generated by the OAM layer. By default, this object should have the value disabled(2) for Ethernet like interfaces that support OAM. If the OAM layer does not support event notifications (as indicated via the wwpOamFunctionsSupported attribute), this value is ignored.
I32 wwpOamErrFrameSecsSummaryThreshold	1.3.6.1.4.1.6141.2.400.1.2.6.1.9	Integer32	read-write	The number of errored frame seconds that must occur for this event to be triggered. The default value is one errored frame second. If wwpOamErrFrameSecsSummaryThreshold frame errors occur within a window of wwpOamErrFrameSecsSummaryWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Seconds Summary Event TLV indicating the threshold has been crossed in this window.
I32 wwpOamErrFrameSecsSummaryWindow	1.3.6.1.4.1.6141.2.400.1.2.6.1.8	Integer32	read-write	The amount of time (in 100ms intervals) over which the threshold is defined. The default value is 600 (60 seconds). If wwpOamErrFrameSecsSummaryThreshold frame errors occur within a window of wwpOamErrFrameSecsSummaryWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Seconds Summary Event TLV indicating the threshold has been crossed in this window.
U32 wwpOamErrFrameThreshold	1.3.6.1.4.1.6141.2.400.1.2.6.1.6	Unsigned32	read-write	The number of frame errors that must occur for this event to be triggered. The default value is one frame error. If wwpOamErrFrameThreshold frame errors occur within a window of wwpOamErrFrameWindow (in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Event TLV indicating the threshold has been crossed in this window.
U32 wwpOamErrFrameWindow	1.3.6.1.4.1.6141.2.400.1.2.6.1.5	Unsigned32	read-write	The amount of time (in 100ms increments) over which the threshold is defined. The default value is 10 (1 second). If wwpOamErrFrameThreshold frame errors occur within a window of wwpOamErrFrameWindow seconds (measured in tenths of seconds), an Event Notification OAMPDU should be generated with an Errored Frame Event TLV indicating the threshold has been crossed in this window.
wwpOamEventConfigEntry	1.3.6.1.4.1.6141.2.400.1.2.6.1		not-accessible	Event configuration information is available for every Ethernet like interface that supports OAM and the event function of OAM as indicated in the wwpOamFunctionsSupported attribute. Event configuration controls when the local management entity sends Event Notification OAMPDUs to its OAM peer.
wwpOamEventConfigTable	1.3.6.1.4.1.6141.2.400.1.2.6		not-accessible	Ethernet OAM includes the ability to generate and receive event notifications to indicate various link problems. This table contains the mechanisms to configure the thresholds to generate the standard Ethernet OAM events. These events are: - Errored Symbol Period Event. Generated when the number of symbol errors exceeds a threshold within a given window defined by a number of symbols (e.g. 1,000 symbols out of 1,000,000 had errors). - Errored Frame Period Event. Generated when the number of frame errors exceeds a threshold within a given window defined by a number of frames (e.g. 10 frames out of 1000 had errors). - Errored Frame Event. Generated when the number of frame errors exceeds a threshold within a given window defined by a period of time (e.g. 10 frames in 1 second had errors). - Errored Frame Seconds Summary Event. Generated when the number of errored frame seconds exceeds a threshold within a given time period (e.g. 10 errored frame seconds within the last 100 seconds). An errored frame second is defined as a 1 second interval which had >0 frame errors.
wwpOamEventLogEntry	1.3.6.1.4.1.6141.2.400.1.2.7.1		not-accessible	An entry in the wwpOamEventLogTable.
U32 wwpOamEventLogEventTotal	1.3.6.1.4.1.6141.2.400.1.2.7.1.13	Unsigned32	read-only	This value respresents the total number of times one or ore of these occurences have resulted in an event (e.g. 51 when 3253 symbol errors have occurred since the last reset, which has resulted in 51 symbol error threshold crossing events since the last reset).
U32 wwpOamEventLogIndex	1.3.6.1.4.1.6141.2.400.1.2.7.1.2	Unsigned32	read-only	An arbitrary integer for identifiying individual events within the event log.
INT wwpOamEventLogLocation	1.3.6.1.4.1.6141.2.400.1.2.7.1.6	INTEGER	read-only	Whether this event occurred locally, or was received from the OAM peer via Ethernet OAM.
OCT wwpOamEventLogOui	1.3.6.1.4.1.6141.2.400.1.2.7.1.4	OCTET STRING	read-only	The OUI of the entity defining the object type. All IEEE 802.3 defined events (as appearing in [802.3ah] except for the Organizationally Unique Event TLVs) use the IEEE 802.3 OUI of 0x0180C2. Organizations defining their own Event Notification TLVs include their OUI in the Event Notification TLV which gets reflected here.
I32 wwpOamEventLogPort	1.3.6.1.4.1.6141.2.400.1.2.7.1.1	Integer32	read-only	An Ethernet port on the switch
C64 wwpOamEventLogRunningTotal	1.3.6.1.4.1.6141.2.400.1.2.7.1.12	Counter64	read-only	This value respresents the total number of times this occurence has happened since the last reset (e.g. 3253, when 3253 symbol errors have occurred since the last reset, which has resulted in 51 symbol error threshold crossing events since the last reset).
wwpOamEventLogTable	1.3.6.1.4.1.6141.2.400.1.2.7		not-accessible	This table records a history of the events that have occurred at the Ethernet OAM level. These events can include locally detected events, which may result in locally generated OAMPDUs, and remotely detected events, which are detected by the OAM peer entity and signaled to the local entity via Ethernet OAM. Ethernet OAM events can be signaled by Event Notification OAMPDUs or by the flags field in any OAMPDU.
U32 wwpOamEventLogThresholdHi	1.3.6.1.4.1.6141.2.400.1.2.7.1.9	Unsigned32	read-only	If the event represents a threshold crossing event, the two objects wwpOamEventThresholdHi and wwpOamEventThresholdLo form an unsigned 64-bit integer yielding the value that was crossed for the threshold crossing event (e.g. 10, when 11 occurrences happened in 5 seconds while the threshold was 10). The two objects are combined as: wwpOamEventLogThreshold = ((2^32) * wwpOamEventLogThresholdHi) + wwpOamEventLogThresholdLo Otherwise, this value is returned as all F's (0xFFFFFFFF) and adds no useful information.
U32 wwpOamEventLogThresholdLo	1.3.6.1.4.1.6141.2.400.1.2.7.1.10	Unsigned32	read-only	If the event represents a threshold crossing event, the two objects wwpOamEventThresholdHi and wwpOamEventThresholdLo form an unsigned 64-bit integer yielding the value that was crossed for the threshold crossing event (e.g. 10, when 11 occurrences happened in 5 seconds while the threshold was 10). The two objects are combined as: wwpOamEventLogThreshold = ((2^32) * wwpOamEventLogThresholdHi) + wwpOamEventLogThresholdLo Otherwise, this value is returned as all F's (0xFFFFFFFF) and adds no useful information.
TIM wwpOamEventLogTimestamp	1.3.6.1.4.1.6141.2.400.1.2.7.1.3	TimeStamp	read-only	The value of sysUpTime at the time of the logged event. For locally generated events, the time of the event can be accurately retrieved from sysUpTime. For remotely generated events, the time of the event is indicated by the reception of the Event Notification OAMPDU indicating the event occurred on the peer. A system may attempt to adjust the timestamp value to more accurately reflect the time of the event at the peer OAM entity by using other information, such as that found in the timestamp found of the Event Notification TLVs, which provides an indication of the relative time between events at the peer entity.
U32 wwpOamEventLogType	1.3.6.1.4.1.6141.2.400.1.2.7.1.5	Unsigned32	read-only	The type of event that generated this entry in the event log. When the OUI is the IEEE 802.3 OUI of 0x0180C2, the following event types are defined: erroredSymbolEvent(1), erroredFramePeriodEvent (2), erroredFrameEvent(3), erroredFrameSecondsEvent(4), linkFault(256), dyingGaspEvent(257), criticalLinkEvent(258) The first four are considered threshold crossing events as they are generated when a metric exceeds a given value within a specified window. The other three are not threshold crossing events. When the OUI is not 0x0180C2, then some other organization has defined the event space. If event subtyping is known to the implementation, it may be reflected here. Otherwise, this value should return all Fs (0xFFFFFFFF).
C64 wwpOamEventLogValue	1.3.6.1.4.1.6141.2.400.1.2.7.1.11	Counter64	read-only	If the event represents a threshold crossing event, this value indicates the value of the parameter within the given window that generated this event (e.g. 11, when 11 occurrences happened in 5 seconds while the threshold was 10). Otherwise, this value is returned as all F's (0xFFFFFFFFFFFFFFFF) and adds no useful information.
U32 wwpOamEventLogWindowHi	1.3.6.1.4.1.6141.2.400.1.2.7.1.7	Unsigned32	read-only	If the event represents a threshold crossing event, the two objects wwpOamEventWindowHi and wwpOamEventWindowLo form an unsigned 64-bit integer yielding the window over which the value was measured for the threshold crossing event (e.g. 5, when 11 occurrences happened in 5 seconds while the threshold was 10). The two objects are combined as: wwpOamEventLogWindow = ((2^32) * wwpOamEventLogWindowHi) + wwpOamEventLogWindowLo Otherwise, this value is returned as all F's (0xFFFFFFFF) and adds no useful information.
U32 wwpOamEventLogWindowLo	1.3.6.1.4.1.6141.2.400.1.2.7.1.8	Unsigned32	read-only	If the event represents a threshold crossing event, the two objects wwpOamEventWindowHi and wwpOamEventWindowLo form an unsigned 64-bit integer yielding the window over which the value was measured for the threshold crossing event (e.g. 5, when 11 occurrences happened in 5 seconds while the threshold was 10). The two objects are combined as: wwpOamEventLogWindow = ((2^32) * wwpOamEventLogWindowHi) + wwpOamEventLogWindowLo Otherwise, this value is returned as all F's (0xFFFFFFFF) and adds no useful information.
I32 wwpOamEventPort	1.3.6.1.4.1.6141.2.400.1.2.6.1.1	Integer32	read-only	An Ethernet port on the switch
wwpOamEvents	1.3.6.1.4.1.6141.2.400.1.3
wwpOamEventsV2	1.3.6.1.4.1.6141.2.400.1.3.0
C32 wwpOamframesLostDueToOam	1.3.6.1.4.1.6141.2.400.1.2.4.1.15	Counter32	read-only	A count of the number of frames that were dropped by the OAM multiplexer. Since the OAM mulitplexer has multiple inputs and a single output, there may be cases where frames are dropped due to transmit resource contention. This counter is incremented whenever a frame is dropped by the OAM layer. When this counter is incremented, no other counters in this MIB are incremented. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
BIT wwpOamFunctionsSupported	1.3.6.1.4.1.6141.2.400.1.2.1.1.6	Bits	read-only	The OAM functions supported on this Ethernet like interface. OAM consists of separate functional sets beyond the basic discovery process which is always required. These functional groups can be supported independently by any implementation. These values are communicated to the peer via the local configuration field of Information OAMPDUs.
wwpOamGroups	1.3.6.1.4.1.6141.2.400.1.1.1
C32 wwpOamInformationRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.2	Counter32	read-only	A count of the number of Information OAMPDUs received on this interface. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Information code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamInformationTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.1	Counter32	read-only	A count of the number of Information OAMPDUs transmitted on this interface. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Information code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
I32 wwpOamLocalPort	1.3.6.1.4.1.6141.2.400.1.2.2.1.9	Integer32	read-only	An Ethernet port on local switch.
INT wwpOamLoopbackCommand	1.3.6.1.4.1.6141.2.400.1.2.3.1.1	INTEGER	read-write	This attribute initiates or terminates remote loopback with an OAM peer. Writing startRemoteLoopback(2) to this attribute cause the local OAM client to send a loopback OAMPDU to the OAM peer with the loopback enable flags set. Writing stopRemoteLoopback(3) to this attribute will cause the local OAM client to send a loopback OAMPDU to the OAM peer with the loopback enable flags cleared. Writing noLoopback to this attribute has no effect. Writes to this attribute are ignored unless the OAM status of this interface is 'operational' (wwpOamOperStatus). The attribute always returns noLoopback on a read. To determine the loopback status, use the attribute wwpOamLoopbackStatus.
C32 wwpOamLoopbackControlRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.6	Counter32	read-only	A count of the number of Loopback Control OAMPDUs transmitted on this interface. An Loopback Control OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Loopback Control code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamLoopbackControlTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.5	Counter32	read-only	A count of the number of Loopback Control OAMPDUs transmitted on this interface. An Loopback Conrol OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Loopback Control code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
wwpOamLoopbackEntry	1.3.6.1.4.1.6141.2.400.1.2.3.1		not-accessible	An entry in the table, containing information on the loopback status for a single Ethernet like interface. There is an entry in this table for every Ethernet like interface on which supports OAM and loopback function within OAM (as indicated in wwpOamFunctionsSupported).
INT wwpOamLoopbackIgnoreRx	1.3.6.1.4.1.6141.2.400.1.2.3.1.3	INTEGER	read-write	Since OAM loopback is a distruptive operation (user traffic does not pass), this attribute provides a mechanism to provide controls over whether received OAM loopback commands are processed or ignored. When the value is ignore(1), received loopback commands are ignored. When the value is process(2), OAM loopback commands are processed. The default value is to ignore loopback commands (ignore(1)). The attribute has no meaning if the local OAM entity does not support the loopback function (as defined in wwpOamFunctionsSupported).
I32 wwpOamLoopbackPort	1.3.6.1.4.1.6141.2.400.1.2.3.1.4	Integer32	read-only	An Ethernet port on the switch
INT wwpOamLoopbackStatus	1.3.6.1.4.1.6141.2.400.1.2.3.1.2	INTEGER	read-only	The loopback status of the OAM entity. This status is determined by a combination of the local parser and multiplexer states, the remote parser and multiplexer states, as well as by the actions of the local OAM client. When operating in normal mode with no loopback in progress, the status reads noLoopback(1). If the OAM client has sent an Loopback OAMPDU and is waiting for a response, where the local parser and multiplexer states are DISCARD (see [802.3ah, 57.2.11.1]), the status is 'initiatingLoopback'. In this case, the local OAM entity has yet to receive any acknowledgement that the remote OAM entity has received its loopback command request. If the local OAM client knows that the remote OAM entity is in loopback mode (via the remote state information as described in [802.3ah, 57.2.11.1, 30.3.6.1.15]), the status is remoteLoopback(3). If the local OAM client is in the process of terminating the remote loopback [802.3ah, 57.2.11.3, 30.3.6.1.14], with its local multiplexer and parser states in DISCARD, the status is terminatingLoopback(4). If the remote OAM client has put the local OAM entity in loopback mode as indicated by its local parser state, the status is localLoopback(5). The unknown(6) status indicates the parser and multiplexer combination is unexpected. This status may be returned if the OAM loopback is in a transition state but should not persist. The values of this attribute correspond to the following values of the local and remote parser and multiplexer states. value LclPrsr LclMux RmtPrsr RmtMux noLoopback FWD FWD FWD FWD initLoopback DISCARD DISCARD FWD FWD rmtLoopback DISCARD FWD LPBK DISCARD tmtngLoopback DISCARD DISCARD LPBK DISCARD lclLoopback LPBK DISCARD DISCARD FWD unknown * any other combination *
wwpOamLoopbackTable	1.3.6.1.4.1.6141.2.400.1.2.3		not-accessible	This table contains methods to control the loopback state of the local link as well as indicating the status of the loopback function. Loopback can be used to place the remote OAM entity in a state where every received frame (except OAMPDUs) are echoed back over the same interface on which they were received. In this state, at the remote entity, 'normal' traffic is disabled as only the looped back frames are transmitted on the interface. Loopback is thus an intrusive operation that prohibits normal data flow and should be used accordingly.
wwpOamMIB	1.3.6.1.4.1.6141.2.400.1
wwpOamMibModule	1.3.6.1.4.1.6141.2.400			The MIB module for managing the new Ethernet OAM features introduced by the Ethernet in the First Mile task force (IEEE 802.3ah). The functionality presented here is based on IEEE 802.3ah [802.3ah], released in October, 2004. In particular, this MIB focused on the changes to Clause 30 of the draft that are not specific to any physical layer. These changes are primarily reflected in the new OAM features developed under this project, that can be applied to any Ethernet like interface. The OAM features are described in Clause 57 of [802.3ah]. The following reference is used throughout this MIB module: [802.3ah] refers to: IEEE Std 802.3ah-2004: 'Draft amendment to - Information technology - Telecommunications and information exchange between systems - Local and metropolitan are networks - Specific requirements - Part 3: Carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications - Media Access Control Parameters, Physical Layers and Management Parameters for subscriber access networks', October 2004. [802-2001] refers to: 'IEEE Standard for LAN/MAN (Local Area Network/Metropolitan Area Network): Overview and Architecture', IEEE 802, June 2001. Copyright (c) The Internet Society (2005). This version of this MIB module is part of RFC XXXX; See the RFC itself for full legal notices.
INT wwpOamMode	1.3.6.1.4.1.6141.2.400.1.2.1.1.3	INTEGER	read-write	This object configures the mode of OAM operation for this Ethernet like interface. OAM on Ethernet interfaces may be in 'active' mode or 'passive' mode. These two modes differ in that active mode provides additional capabilities to initiate monitoring activities with the remote OAM peer entity, while passive mode generally waits for the peer to initiate OAM actions with it. As an example, an active OAM entity can put the remote OAM entity in a loopback state, where a passive OAM entity cannot. The default value of wwpOamMode is dependent on the type of system on which this Ethernet like interface resides. The default value should be 'active(1)' unless it is known that this system should take on a subservient role to the other device connected over this interface. Changing this value results in incrementing the configuration revision field of locally generated OAMPDUs (30.3.6.1.12) and potentially re-doing the OAM discovery process if the wwpOamOperStatus was already operational(9).
wwpOamObjs	1.3.6.1.4.1.6141.2.400.1.2
INT wwpOamOperStatus	1.3.6.1.4.1.6141.2.400.1.2.1.1.2	INTEGER	read-only	At initialization and failure conditions, two OAM entities on the same full-duplex Ethernet link begin a discovery phase to determine what OAM capabilities may be used on that link. The progress of this initialization is controlled by the OAM sublayer. This value is always disabled(1) if OAM is disabled on this interface via the wwpOamAdminState. If the link has detected a fault and is transmitting OAMPDUs with a link fault indication, the value is linkFault(2). The passiveWait(3) state is returned only by OAM entities in passive mode (wwpOamMode) and reflects the state in which the OAM entity is waiting to see if the peer device is OAM capable. The activeSendLocal(4) is used by active mode devices (wwpOamMode) and reflects the OAM entity actively trying to discover whether the peer has OAM capability but has not yet made that determination. The state sendLocalAndRemote(5) reflects that the local OAM entity has discovered the peer but has not yet accepted or rejected the configuration of the peer. The local device can, for whatever reason, decide that the peer device is unacceptable and decline OAM peering. If the local OAM entity rejects the peer OAM entity, the state becomes oamPeeringLocallyRejected(7). If the OAM peering is allowed by the local device, the state moves to sendLocalAndRemoteOk(6). Note that both the sendLocalAndRemote(5) and oamPeeringLocallyRejected(7) states fall within the state SEND_LOCAL_REMOTE of the Discovery state diagram [802.3ah, Figure 57-5], with the difference being whether the local OAM client has actively rejected the peering or has just not indicated any decision yet. Whether a peering decision has been made is indicated via the local flags field in the OAMPDU (reflected in the aOAMLocalFlagsField of 30.3.6.1.10). If the remote OAM entity rejects the peering, the state becomes oamPeeringRemotelyRejected(8). Note that both the sendLocalAndRemoteOk(6) and oamPeeringRemotelyRejected(8) states fall within the state SEND_LOCAL_REMOTE_OK of the Discovery state diagram [802.3ah, Figure 57-5], with the difference being whether the remote OAM client has rejected the peering or has just not yet decided. This is indicated via the remote flags field in the OAM PDU (reflected in the aOAMRemoteFlagsField of 30.3.6.1.11). When the local OAM entity learns that both it and the remote OAM entity have accepted the peering, the state moves to operational(9) corresponding to the SEND_ANY state of the Discovery state diagram [802.3ah, Figure 57-5].
C32 wwpOamOrgSpecificRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.12	Counter32	read-only	A count of the number of Organization Specific OAMPDUs received on this interface. An Organization Specific OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Organization Specific code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamOrgSpecificTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.11	Counter32	read-only	A count of the number of Organization Specific OAMPDUs transmitted on this interface. An Organization Specific OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Organization Specific code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
U32 wwpOamPeerConfigRevision	1.3.6.1.4.1.6141.2.400.1.2.2.1.7	Unsigned32	read-only	The configuration revision of the OAM peer as reflected in the latest OAMPDU. This attribute is changed by the peer whenever it has a local configuration change for Ethernet OAM this interface. This value is initialized to all zeros (0x00000000), and is invalid if the wwpOamPeerStatus is inactive. The configuration revision can be determined from the Revision field of the Local Information TLV of the most recently received Information OAMPDU with a Local Information TLV. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) a OAM code that equals the code reserved for Information OAMPDUs.
wwpOamPeerEntry	1.3.6.1.4.1.6141.2.400.1.2.2.1		not-accessible	An entry in the table, containing information on the peer OAM entity for a single Ethernet like interface. Note that there is at most one OAM peer for each Ethernet like interface. There is exactly one row in this table for each Ethernet like interface supporting OAM.
BIT wwpOamPeerFunctionsSupported	1.3.6.1.4.1.6141.2.400.1.2.2.1.8	Bits	read-only	The OAM functions supported on this Ethernet like interface. OAM consists of separate functionality sets above the basic discovery process. This value indicates the capabilities of the peer OAM entity with respect to these functions. This value is initialized so all bits are clear, and is invalid if the wwpOamPeerStatus is inactive. The capbilities of the OAM peer can be determined from the configuration field of the Local Information TLV of the most recently received Information OAMPDU with a Local Information TLV. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) a OAM code that equals the code reserved for Information OAMPDUs.
OCT wwpOamPeerMacAddress	1.3.6.1.4.1.6141.2.400.1.2.2.1.2	OCTET STRING	read-only	The MAC address of the peer OAM entity. The MAC address is derived from the most recently received OAMPDU. This value is initialized to all zeros (0x000000000000). This value is invalid if the wwpOamPeerStatus is inactive. An OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) and a Slow Protocols subtype equal to that of the subtype reserved for OAM.
I32 wwpOamPeerMaxOamPduSize	1.3.6.1.4.1.6141.2.400.1.2.2.1.6	Integer32	read-only	The maximum size of OAMPDU supported by the peer as reflected in the latest Information OAMPDU received with a Local Information TLV. Ethernet OAM on this interface must not use OAMPDUs that exceed this size. The maximum OAMPDU size can be determined from the PDU Configuration field of the Local Information TLV of the last Information OAMPDU received from the peer. This value is initialized to 64, and is invalid if the wwpOamPeerStatus is inactive. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) a OAM code that equals the code reserved for Information OAMPDUs.
INT wwpOamPeerMode	1.3.6.1.4.1.6141.2.400.1.2.2.1.5	INTEGER	read-only	The mode of the OAM peer as reflected in the latest Information OAMPDU received with a Local Information TLV. The mode of the peer can be determined from the Configuration field in the Local Information TLV of the last Information OAMPDU received from the peer. This value is initialized to unknown(3), and is not valid if the wwpOamPeerStatus is inactive. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) a OAM code that equals the code reserved for Information OAMPDUs.
INT wwpOamPeerStatus	1.3.6.1.4.1.6141.2.400.1.2.2.1.1	INTEGER	read-only	This object indicates whether the information in this row should be considered valid. When active(1), the information is valid and represents the current peer of the OAM entity. When inactive(2), the information in this row is invalid. A value of inactive(2) is returned if the wwpOamOperStatus is disabled, passiveWait, or activeSendLocal. For all other values of wwpOamOperStatus, a value of active(1) is returned.
wwpOamPeerTable	1.3.6.1.4.1.6141.2.400.1.2.2		not-accessible	Information about the OAM peer for a particular Ethernet like interface. OAM entities communicate with a single OAM peer entity on full-duplex Ethernet links on which OAM is enabled and operating properly. In certain states, the OAM peer information is not available. Whether peer information is available is communicated via the wwpOamPeerStatus object. When this object is inactive, all other information in the row is to be considered invalid.
U32 wwpOamPeerVendorInfo	1.3.6.1.4.1.6141.2.400.1.2.2.1.4	Unsigned32	read-only	The Vendor Info of the OAM peer as reflected in the latest Information OAMPDU received with a Local Information TLV. The vendor information field is within the Local Information TLV, and can be used to determine additional information about the peer entity. The format of the vendor information is unspecified within the 32-bit field. This value is intialized to all zeros (0x00000000). This value is invalid if the wwpOamPeerStatus is inactive. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) a OAM code that equals the code reserved for Information OAMPDUs.
OCT wwpOamPeerVendorOui	1.3.6.1.4.1.6141.2.400.1.2.2.1.3	OCTET STRING	read-only	The OUI of the OAM peer as reflected in the latest Information OAMPDU received with a Local Information TLV. The OUI can be used to identify the vendor of the remote OAM entity. This value is initialized to all zeros (0x000000). This value is considered invalid if the wwpOamPeerStatus is inactive. An Information OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, (4) a OAM code that equals the code reserved for Information OAMPDUs.
I32 wwpOamPort	1.3.6.1.4.1.6141.2.400.1.2.1.1.7	Integer32	read-only	An Ethernet port on the switch.
wwpOamStatsEntry	1.3.6.1.4.1.6141.2.400.1.2.4.1		not-accessible	An entry in the table, containing statistics information on the Ethernet OAM function for a single Ethernet like interface.
I32 wwpOamStatsPort	1.3.6.1.4.1.6141.2.400.1.2.4.1.16	Integer32	read-only	An Ethernet port on the switch
wwpOamStatsTable	1.3.6.1.4.1.6141.2.400.1.2.4		not-accessible	Statistics for the OAM function on a particular Ethernet like interface.
INT wwpOamSystemEnableDisable	1.3.6.1.4.1.6141.2.400.1.2.5	INTEGER	read-write	Global Enable/disable OAM on the switch
wwpOamTable	1.3.6.1.4.1.6141.2.400.1.2.1		not-accessible	Primary controls and status for the OAM capabilities of an Ethernet like interface. There will be one row in this table for each Ethernet like interface in the system that supports the Ethernet OAM functions defined in [802.3ah].
C32 wwpOamUniqueEventNotificationRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.4	Counter32	read-only	A count of the number of unique Event OAMPDUs received on this interface. Event notification OAMPDUs may be sent in duplicate to increase the probability of successfully being received, given the possiblity that a frame may be lost in transit. An Event Notification OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Event code. A unique Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is distinct from the previously received Event Notification OAMPDU Sequence Number. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamUniqueEventNotificationTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.3	Counter32	read-only	A count of the number of unique Event OAMPDUs transmitted on this interface. Event notifications may be sent in duplicate to increase the probability of successfully being received, given the possiblity that a frame may be lost in transit. An Event Notification OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Event code. A unique Event Notification OAMPDU is indicated as an Event Notification OAMPDU with a Sequence Number field that is distinct from the previously transmitted Event Notification OAMPDU Sequence Number. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamUnsupportedCodesRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.14	Counter32	read-only	A count of the number of OAMPDUs received on this interface with an unsupported op-code. An unsupported opcode OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the opcode for a function that is not supported by the device. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamUnsupportedCodesTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.13	Counter32	read-only	A count of the number of OAMPDUs transmitted on this interface with an unsupported op-code. An unsupported opcode OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the opcode for a function that is not supported by the device. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamVariableRequestRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.8	Counter32	read-only	A count of the number of Variable Request OAMPDUs received on this interface. An Variable Request OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Variable Request code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamVariableRequestTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.7	Counter32	read-only	A count of the number of Variable Request OAMPDUs transmitted on this interface. An Variable Request OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Variable Request code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamVariableResponseRx	1.3.6.1.4.1.6141.2.400.1.2.4.1.10	Counter32	read-only	A count of the number of Variable Response OAMPDUs received on this interface. An Variable Response OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Variable Response code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.
C32 wwpOamVariableResponseTx	1.3.6.1.4.1.6141.2.400.1.2.4.1.9	Counter32	read-only	A count of the number of Variable Response OAMPDUs transmitted on this interface. An Variable Response OAMPDU is indicated by a valid frame with (1) destination MAC address equal to that of the reserved MAC address for Slow Protocols (See 43B of [802.3ah]), (2) a lengthOrType field equal to the reserved type for Slow Protocols, (3) a Slow Protocols subtype equal to that of the subtype reserved for OAM, and (4) an OAMPDU code equals the OAM Variable Response code. Discontinuities of this counter can occur at re-initialization of the management system, and at other times as indicated by the value of the ifCounterDiscontinuityTime.

RFC description

Manages Ethernet OAM (Operations, Administration, Maintenance) features based on IEEE 802.3ah standards on World Wide Packets systems.

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