CXGwMux-MIB

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Category: Vendor: Memotec

Description: Manages multiplexed gateway services and channel aggregation on CX Memotec devices.

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What Is CXGwMux-MIB?

CXGwMux-MIB is a vendor-specific Aastra/Memotec (CX) MIB managing gateway multiplexing services that combine voice and data traffic over shared WAN links, including channel aggregation between a bus interface and the WAN. It exposes configuration parameters (timing, buffering, flow control factors) alongside live counters for messages and acknowledgments passed between the bus and WAN sides. For hardware/software status monitoring, the key value is in the counters such as gmfCntUnexpLinkNoFromWan and the various message-relay counters, which reveal link synchronization problems, dropped frames, or protocol errors in the multiplexing engine, plus gmfState to see the current operational state of the mux function. It works in conjunction with lower-layer WAN link MIBs (e.g., CXLapBD-MIB, CXMLPPP-MIB) that carry the aggregated traffic. It is typically deployed on Aastra CX gateway/multiplexer devices carrying converged voice-over-data traffic across WAN circuits at enterprise or telco access sites. Engineers can download the CXGwMux-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CXGwMux-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

Aastra ConvertedX (CX) gateway/multiplexer device

Monitoring Examples

An operator would poll gmfState to confirm the multiplexer function is operationally up, then watch gmfCntInfoMsgRelFromBus and gmfCntInfoMsgRelFromWan to compare message throughput in each direction; a growing imbalance can indicate a stalled link. gmfCntUnexpLinkNoFromWan rising unexpectedly signals link-number desynchronization between endpoints, a common precursor to dropped calls or data errors. gmfVoiceOverDataPriorityFactor and gmfOutputFlowControlFactor would be checked when voice quality issues are reported, to confirm voice traffic is still being prioritized correctly over data.

What Can Be Monitored

multiplexer operational state
bus-to-WAN message relay counts
unexpected link number errors from WAN
voice-over-data priority factor
output flow control factor
acknowledgment counters to WAN

Imported Objects

From CXProduct-SMI

Alias
cxGwMux	OBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

OIDs

OID symbolic	OID numeric	Type	Access	Description
CTR gmfCntDataFrmDmx	1.3.6.1.4.1.495.2.1.6.5.3.1.5	Counter	read-only	Indicates the number of data frames that have been demuxed since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntDataFrmMx	1.3.6.1.4.1.495.2.1.6.5.3.1.4	Counter	read-only	Indicates the number of data frames that have been muxed since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntDataQueueFull	1.3.6.1.4.1.495.2.1.6.5.3.1.21	Counter	read-only	Indicates the number of times that data entries exceeded the capacity of the queueing controller (FIFO) in system memory since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntFrmTooLongFromWan	1.3.6.1.4.1.495.2.1.6.5.1.14	Counter	read-only	Indicates the number of long frames received from the Frame Relay software layer and then discarded. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntFrmTooShortFromWan	1.3.6.1.4.1.495.2.1.6.5.1.13	Counter	read-only	Indicates the number of short frames received from the Frame Relay software layer and then discarded. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntGlobalFlowCtlCond	1.3.6.1.4.1.495.2.1.6.5.1.20	Counter	read-only	Indicates the number of times that voice/data entries nearly exceeded what the queuing controller (FIFO) in system memory could handle as defined in 'gmfNoOfEntryPerFifo'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntInFlowCtrlMuxSide	1.3.6.1.4.1.495.2.1.6.5.3.1.12	Counter	read-only	Indicates the number of times the GMF software layer has notified the Voice/Data Compression module to slow its traffic. This value is zeroed when 'gmfControlStats' is set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntInfoMsgRelFromBus	1.3.6.1.4.1.495.2.1.6.5.1.9	Counter	read-only	Indicates the number of information messages (including Management Console Interface traffic) received from the Token Bus software layer. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntInfoMsgRelFromVce	1.3.6.1.4.1.495.2.1.6.5.1.19	Counter	read-only	Indicates the number of information messages received from the Voice module (if present). Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntInfoMsgRelFromWan	1.3.6.1.4.1.495.2.1.6.5.1.10	Counter	read-only	Indicates the number of compressed voice/data messages received from the Frame Relay software layer. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntLinkDown	1.3.6.1.4.1.495.2.1.6.5.3.1.8	Counter	read-only	Indicates the number of notifications received from the Frame Relay software layer that the PVC has been down since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntMuxPassTimeExceeded	1.3.6.1.4.1.495.2.1.6.5.1.17	Counter	read-only	Not currently used.
CTR gmfCntNegValidation	1.3.6.1.4.1.495.2.1.6.5.3.1.27	Counter	read-only	Indicates the number of negative validations the GMF software layer has sent the Voice/Data Compression module since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntOutFlowCtrlWanSide	1.3.6.1.4.1.495.2.1.6.5.3.1.13	Counter	read-only	Indicates the number of times the GMF software layer has slowed its muxing of data traffic due to messages received from the Frame Relay software layer with the BECN bit set. This value is zeroed when 'gmfControlStats' is set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntPosValidation	1.3.6.1.4.1.495.2.1.6.5.3.1.26	Counter	read-only	Indicates the number of positive validations the GMF software layer has sent the Voice/Data Compression module since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967,295 Default Value: none
CTR gmfCntRemoteRestarted	1.3.6.1.4.1.495.2.1.6.5.3.1.19	Counter	read-only	Not currently used.
CTR gmfCntRouteChange	1.3.6.1.4.1.495.2.1.6.5.3.1.24	Counter	read-only	Indicates the number of times an active routing entry using this virtual circuit has been killed through on-the-fly route changes with 'gmfRouteEntry' since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntSeqErrorForced	1.3.6.1.4.1.495.2.1.6.5.3.1.17	Counter	read-only	Indicates the number of times the GMF software layer forced a sequence error in a message to the Frame Relay software layer since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntSeqErrorFromMux	1.3.6.1.4.1.495.2.1.6.5.3.1.14	Counter	read-only	Indicates the number of times the GMF software layer detected sequence errors in the data stream coming from the Voice/Data Compression module since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntSeqErrorFromWan	1.3.6.1.4.1.495.2.1.6.5.3.1.15	Counter	read-only	Indicates the number of times the GMF software layer detected sequence errors in the data stream coming from the Frame Relay software layer since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntSilentConnections	1.3.6.1.4.1.495.2.1.6.5.1.16	Counter	read-only	Indicates the number of connections with the Voice Module (CX 900 only) or with a local AC 600/MC 600/HC 600 (CX 1000 only) that have been dropped by the GMF software layer due to inactivity. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntSilentLink	1.3.6.1.4.1.495.2.1.6.5.3.1.16	Counter	read-only	Indicates whether the GMF software layer detected a silence on the virtual circuit between the GMF and Frame Relay software layer since the last power up or since 'gmfControlStats' was set to 'clearStats'. Options: false: silence not detected true: silence detected Default Value: false
CTR gmfCntTooManyCodes	1.3.6.1.4.1.495.2.1.6.5.3.1.25	Counter	read-only	Indicates the number of times the GMF software layer received a compressed voice/data packet containing too many codes from the Voice/Data Compression module since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294,967, 295 Default Value: none
CTR gmfCntTxAckToWan	1.3.6.1.4.1.495.2.1.6.5.1.11	Counter	read-only	Indicates the number of ACKs sent to the Frame Relay software layer. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntUnexpLinkNoFromWan	1.3.6.1.4.1.495.2.1.6.5.1.12	Counter	read-only	Indicates the number of unexpected DLCIs in message headers received from the Frame Relay software layer. Range of Values: 0-4, 294, 967, 295 Default Value: none
CTR gmfCntUnexpLoopBack	1.3.6.1.4.1.495.2.1.6.5.3.1.18	Counter	read-only	Not currently used.
CTR gmfCntUnexpSliceType	1.3.6.1.4.1.495.2.1.6.5.3.1.23	Counter	read-only	Indicates the number of times the GMF software layer detected a message of an unexpected type from a Voice/Data Compression module since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntVoiceFrmDmx	1.3.6.1.4.1.495.2.1.6.5.3.1.7	Counter	read-only	Indicates the number of compressed voice frames that have been demuxed since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntVoiceFrmMx	1.3.6.1.4.1.495.2.1.6.5.3.1.6	Counter	read-only	Indicates the number of voice frames that have been muxed since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntVoiceMuxInterrupted	1.3.6.1.4.1.495.2.1.6.5.3.1.20	Counter	read-only	Indicates the number of times the GMF software layer stopped muxing current voice traffic to allow for muxing of data traffic in accordance with the 'gmfVoiceOverDataPriorityFactor' since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfCntVoiceQueueFull	1.3.6.1.4.1.495.2.1.6.5.3.1.22	Counter	read-only	Indicates the number of times that voice entries exceeded the capacity of the queueing controller (FIFO) in system memory since the last power up or since 'gmfControlStats' was set to 'clearStats'. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
gmfConfig	1.3.6.1.4.1.495.2.1.6.5.1
INT gmfControlLink	1.3.6.1.4.1.495.2.1.6.5.3.1.29	INTEGER	write-only	Determines whether the GMF software layer puts link in normal mode or in loopback mode. Options: forceNormal (1): puts link in normal mode forceLoopback (2): puts link in loopback mode Default Value: none Configuration Changed: operative
INT gmfControlStats	1.3.6.1.4.1.495.2.1.6.5.1.22	INTEGER	write-only	Clears GMF statistics not related to sampling period. Options: clearStats (1): clear statistics Default Value: none Configuration Changed: operative
INT gmfDataOutPriority	1.3.6.1.4.1.495.2.1.6.5.3.1.31	INTEGER	read-write	Determines the priority given to outbound data traffic routed through the FRIM software layer. Priority for traffic routed directly through the Frame Relay software layer is controlled with 'frCircuitPriorityLevel'. Range of Values: 1 - 4 (4 is the lowest) Default Value: 1 Configuration Changed: operative
INT gmfDataOutWindowWidth	1.3.6.1.4.1.495.2.1.6.5.3.1.30	INTEGER	read-write	Determines the width in the transmit window given to data traffic in relation to voice traffic. The lower this value, the more restricted will be the flow of data traffic. Range of Values: 1-16 Default Value: 6 Configuration Changed: operative
INT gmfDest	1.3.6.1.4.1.495.2.1.6.5.2.1.3	INTEGER	read-write	Determines the slot in an equivalent chassis across the network occupied by a CPU card receiving compressed voice/data packets. Range of Values: 1-16 Default Value: undefined Configuration Changed: operative
INT gmfLink	1.3.6.1.4.1.495.2.1.6.5.2.1.2	INTEGER	read-only	Indicates a valid route number established in 'gmfNoOfLinkSupported' that is used by the Voice/Data Compression module to send compressed voice/data packets to the Frame Relay software layer. Range of Values: 1-48 Default Value: none Configuration Changed: administrative
CTR gmfLinkErrorRate	1.3.6.1.4.1.495.2.1.6.5.3.1.11	Counter	read-only	Indicates the number of sequence errors occurring within the last sampling period on the virtual circuit between the GMF and the Frame Relay software layers. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
INT gmfLinkIndex	1.3.6.1.4.1.495.2.1.6.5.3.1.1	INTEGER	read-only	Indicates the row containing objects for monitoring the virtual circuit. Range of Values: 1 - 48 Default Value: none
gmfLinkStatEntry	1.3.6.1.4.1.495.2.1.6.5.3.1		not-accessible	Each row contains the state variables and general counters associated with a particular link.
gmfLinkStatTable	1.3.6.1.4.1.495.2.1.6.5.3		not-accessible	GMF links statistics table. The table maintains a row per link.
INT gmfLinkStatus	1.3.6.1.4.1.495.2.1.6.5.3.1.2	INTEGER	read-only	Indicates the virtual circuit's current state. Options: down (1): circuit is down init (2): circuit is initializing up (3): circuit is up Default Value: none
INT gmfLinkType	1.3.6.1.4.1.495.2.1.6.5.3.1.3	INTEGER	read-only	Indicates routing of virtual circuit from GMF software layer. Options: bound-to-FR (1): direct to Frame Relay module routed-to-IAM (2): direct to Inter-Application module in-loopback (3): looped back to Token Bus module or Voice module (if present) Default Value: none
CTR gmfLinkUtilizationRx	1.3.6.1.4.1.495.2.1.6.5.3.1.10	Counter	read-only	Indicates the transfer rate in bits per second of data moving from the Frame Relay module to the local Voice/Data Compression module within the last sampling period. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfLinkUtilizationTx	1.3.6.1.4.1.495.2.1.6.5.3.1.9	Counter	read-only	Indicates the transfer rate in bits per second of data moving from the local Voice/Data Compression module to the Frame Relay module within the last sampling period. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
CTR gmfLongestTimeToMux	1.3.6.1.4.1.495.2.1.6.5.1.15	Counter	read-only	Indicates the duration in milliseconds for the longest mux pass. Range of Values: 0 - 4, 294, 967, 295 Default Value: none
INT gmfMciCurrentConnection	1.3.6.1.4.1.495.2.1.6.5.1.18	INTEGER	read-only	Not currently used.
INT gmfMuxInterPassPeriodInMs	1.3.6.1.4.1.495.2.1.6.5.1.1	INTEGER	read-write	Determines the minimum period in milliseconds between the muxing of queued frames. Range of Values: 1-500 Default Value: 10 Configuration Changed: operative
INT gmfNoOfEntryPerFiFo	1.3.6.1.4.1.495.2.1.6.5.1.5	INTEGER	read-write	Determines the maximum number of voice/data entries that the queueing controller (FIFO) in system memory can handle. Range of Values: 32 - 10,000 Default Value: 256 Configuration Changed: administrative
INT gmfNoOfLinkSupported	1.3.6.1.4.1.495.2.1.6.5.1.4	INTEGER	read-write	Determines the number of virtual circuits that the GMF software layer currently supports for compressed voice/data traffic. If '0', voice/data traffic is disabled. If '1', then that one voice/data link will be numbered Link Number 1. If '5', then voice/data links one through five will be numbered Link Number 1, Link Number 2, Link Number 3, Link Number 4 and Link Number 5, respectively. 'gmfLink' uses the numbers assigned to these virtual circuits. Range of Values: 0 - 1,024 Default Value: 0 Configuration Changed: administrative
INT gmfNoOfVoicePacketQueued	1.3.6.1.4.1.495.2.1.6.5.1.21	INTEGER	read-write	Determines the maximum number of voice packets that can be buffered before being muxed. Range of Values: 0-8 Default Value: 4 Configuration Changed: operative
INT gmfOrigin	1.3.6.1.4.1.495.2.1.6.5.2.1.1	INTEGER	read-only	Indicates the slot in the chassis occupied by a CPU card sending compressed voice/data packets. Range of Values: 1-16 Default Value: none Configuration Changed: administrative
INT gmfOutputFlowControlFactor	1.3.6.1.4.1.495.2.1.6.5.1.7	INTEGER	read-write	Determines the extent to which the GMF software layer slows down compressed data (but not compressed voice) traffic from a Data Compression module (if present) after being notified of congestion by the Frame Relay software layer. Range of Values: 1 - 10 (10 = slowest) Default Value: 1 Configuration Changed: operative
gmfRouteEntry	1.3.6.1.4.1.495.2.1.6.5.2.1		not-accessible	Each row associates a slot destination number for each possible route number with a specific . combination.
INT gmfRouteRowStatus	1.3.6.1.4.1.495.2.1.6.5.2.1.4	INTEGER	read-write	Determines whether this slot/route combination is to be deleted from the GMF software layer. Options: invalid (1): Row is deleted from the table immediately, however values are still in effect until the next reset. valid (2): Use this value to add a new row to the table, or modify an existing row. Default Value: none Configuration Changed: administrative
gmfRouteTable	1.3.6.1.4.1.495.2.1.6.5.2		not-accessible	GMF routing table. The table maintains a row per slot source (i.e. 16 possible rows for the CX 1000 chassis) and GMF link number. This table is has no meaning for voice stations that use the voice switching option.
INT gmfSRConStatus	1.3.6.1.4.1.495.2.1.6.5.4.1.4	INTEGER	read-only	Indicates status of connection on the system route. Options: not-init (1): system route not initialized closed (2): system route closed waitForQueryConf (3): in progress (query confirmed?) waitForOpenConf (4): in progress (opening confirmed?) opened (5): system route opened Default Value: none
ALI gmfSRDestCircuitAlias	1.3.6.1.4.1.495.2.1.6.5.4.1.2	Alias	read-write	Determines the alias of a circuit specified in the Frame Relay software layer that will link with the GMF route. Range of Values: (CX 1000) 0 - 35 alphanumeric characters beginning with a non-numeric character (CX 900) 0 - 16 alphanumeric characters beginning with a non-numeric character Default Value: none Configuration Changed: operative
gmfSREntry	1.3.6.1.4.1.495.2.1.6.5.4.1		not-accessible	Each row associates an alias and a subref field to a GMF's link.
INT gmfSRFailStatus	1.3.6.1.4.1.495.2.1.6.5.4.1.5	INTEGER	read-only	Indicates the reason for a connection failure on a system route prior to the next attempt to establish a connection on that route. Default Value: none Options: noFailure (1): did not fail internalError (2): system error localMemAllocFailure (3): GMF memory allocation error remoteMemAllocFailure (4): FRIM memory allocation error remoteNoAccess (5): FRIM not configured remotePvcDown (6): FRIM reported down remotevcBusy (7): FRIM busy localFcnFailure (8): flow control type unknown to GMF remoteFcnFailure (9): flow control type unknown to FRIM localDsnFailure (10): GMF could not negotiate data size remoteAliasNotFound (11): no PVC for destination alias remoteNoPvcService (12): FRIM not supporting PVC protocol openReqTimeout (13): timeout of open connection request adjaCardReset (14): adjacent CPU reset (CX 1000 only) linkNotSupported (15): system route number not supported
INT gmfSRLink	1.3.6.1.4.1.495.2.1.6.5.4.1.1	INTEGER	read-only	Indicates a valid route number established in 'gmfNoOfLinkSupported' used by the Voice/Data Compression module to send compressed voice/data packets to the Frame Relay software layer. Range of Values: 1 - 1,024 Default Value: none
INT gmfSRRowStatus	1.3.6.1.4.1.495.2.1.6.5.4.1.6	INTEGER	read-write	Determines whether this system route is in service or is to be deleted from the GMF software layer. Options: invalid (1): Row is deleted from the table immediately, however values are still in effect until the next reset. valid (2): Use this value to add a new row to the table, or modify an existing row. Default Value: none Configuration Changed: operative
SUB gmfSRSubRef	1.3.6.1.4.1.495.2.1.6.5.4.1.3	SubRef	read-write	Determines the reference that one user's segment of traffic will be assigned on the outbound PVC to distinguish it from traffic segments of other users of the same outbound PVC. Range of Values: 1 - 255 Default Value: 1 Configuration Changed: operative
gmfSRTable	1.3.6.1.4.1.495.2.1.6.5.4		not-accessible	GMF system routing table. The table may contain a row per GMF link i.e. up to 48 rows (currently).
INT gmfState	1.3.6.1.4.1.495.2.1.6.5.1.8	INTEGER	read-only	Indicates the state of the GMF software layer at initialization. Report abnormal value to Memotec Service Department. Options: dead (1): CX900/CX1000 abnormal gmf-task-conf (2): CX900/CX1000 abnormal general-conf (3): CX900/CX1000 abnormal sap-conf (4): CX900/CX1000 abnormal route-conf (5): CX900/CX1000 abnormal init-gmf-completed (6): CX900/CX1000 abnormal init-appl-completed (7): CX900 normal/CX1000 abnormal mci-only (8): CX900 abnormal/CX1000 CCM only reg-to-iam (9): CX900 abnormal/CX1000 normal Default Value: none
INT gmfStatSamplingPeriod	1.3.6.1.4.1.495.2.1.6.5.1.3	INTEGER	read-write	Determines the maximum duration in seconds for statistical sampling. Resetting this sampling window to a different value zeroes the objects gmfLinkUtilizationTx, gmfLinkUtilizationRx and gmfLinkErrorRate to begin a fresh sample. Range of Values: 0 - 3,600 Default Value: 3,600 Configuration Changed: operative
INT gmfToFrCouplingLevel	1.3.6.1.4.1.495.2.1.6.5.1.6	INTEGER	read-write	Not currently used.
INT gmfVoiceOverDataPriorityFactor	1.3.6.1.4.1.495.2.1.6.5.1.2	INTEGER	read-write	Determines the maximum number of compressed voice-type frames that can be muxed in sequence before a compressed data-type frame must be muxed. Range of Values: 1 - 1,000 Default Value: 1,000 Configuration Changed: operative

RFC description

Manages GMF (Gateway Mux) configuration and statistics for compressed voice/data traffic muxing on network links.

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Download CXGwMux-MIB

What Is CXGwMux-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

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RFC description