CISCO-RTTMON-RTP-MIB

All MIBs › CISCO-RTTMON-RTP-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2005-08-09

Category: Cisco Devices, Network Monitoring (RMON), Telephony and VoIP

Description: Manages RTP-based IP SLA operations measuring voice path quality metrics on Cisco routing platforms.

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What Is CISCO-RTTMON-RTP-MIB?

CISCO-RTTMON-RTP-MIB is an extension to the CISCO-RTTMON-MIB (Cisco IP SLA) that adds support for RTP-based operations, letting a Cisco router measure real-time voice-path quality by establishing an RTP stream (per RFC 1889/3550) between two routers. It belongs to the IP SLA / voice quality assurance technology area and exposes performance-counter data rather than hardware status: round-trip time, jitter, packet loss/lateness/earliness, out-of-sequence packets, frame loss, and computed voice-quality scores. Its monitoring role is entirely about software-measured network performance affecting voice/VoIP quality, most notably the Mean Opinion Score (MOS) metrics for conversational and listening quality and the R-factor, which quantify perceived call quality end to end. It explicitly depends on the base CISCO-RTTMON-MIB for its operation/control framework and references the RTP protocol standard for the underlying stream format. It is typically deployed on Cisco routers acting as IP SLA source and responder endpoints in enterprise or service-provider voice/UC networks to proactively detect degraded call quality. Engineers can download the CISCO-RTTMON-RTP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-RTTMON-RTP-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

Cisco router (IP SLA source/responder)

Monitoring Examples

An administrator would poll rttMonLatestRtpOperTable entries for rttMonLatestRtpOperRTT and rttMonLatestRtpOperIAJitterDS to detect rising round-trip latency or jitter on a WAN voice path, and cross-check rttMonLatestRtpOperPacketLossDS and rttMonLatestRtpOperPacketOOSDS for packet loss or reordering. If rttMonLatestRtpOperMOSCQDS or rttMonLatestRtpOperMOSLQDS scores drop below an acceptable threshold (e.g. under 3.5) while rttMonLatestRtpOperRFactorDS also declines, that is a clear signal that end users on that link are experiencing degraded call quality even before a help-desk ticket comes in.

What Can Be Monitored

round-trip time
jitter
packet loss/late/early counts
out-of-sequence packet count
MOS conversational/listening quality scores
R-factor

Imported Objects

From CISCO-RTTMON-MIB

rttMonCtrlAdminIndex	OBJECT-TYPE
rttMonLatestOper	OBJECT-IDENTITY
rttMonStats	OBJECT-IDENTITY

From CISCO-RTTMON-TC-MIB

RttResponseSense

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Gauge32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TimeStamp

How to Use in IPNetwork Monitor

Example using rttMonLatestRtpOperRTT OID:

Select a Cisco router (IP SLA source/responder) 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 rttMonLatestRtpOperRTT 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. It reports the round trip time for RTP packet. 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 Gauge32-type OID, Value bounds is the most useful condition here — trigger an alert if the value drifts significantly from its normal baseline, since an unexpected change often points to a real underlying issue. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
ciscoRttMonRtpGroup	1.3.6.1.4.1.9.9.487.2.2.1			A collection of objects related to the statistics for RTP operation.
ciscoRttMonRtpGroupRev1	1.3.6.1.4.1.9.9.487.2.2.2			A collection of objects related to the Source to Destination statistics for RTP Operation.
ciscoRttMonRtpMIB	1.3.6.1.4.1.9.9.487			An extension to the CISCO-RTTMON-MIB for Cisco IP SLA RTP operation, Real-Time Transport Protocol(RFC 1889). This operation provides capability to measure voice quality metrics such as RTT (Round Trip Time), Jitter, MOS (Mean Opinion Score) scores by setting up RTP stream between two routers. In voice communications, particularly Internet telephony, MOS provides a numerical measure of the quality of human speech at the destination end of the circuit.
ciscoRttMonRtpMIBCompliance	1.3.6.1.4.1.9.9.487.2.1.1			The compliance statement for new MIB extensions for (1) Rtp operation and statistics
ciscoRttMonRtpMIBCompliances	1.3.6.1.4.1.9.9.487.2.1
ciscoRttMonRtpMIBConformance	1.3.6.1.4.1.9.9.487.2
ciscoRttMonRtpMIBGroups	1.3.6.1.4.1.9.9.487.2.2
ciscoRttMonRtpMIBNotifs	1.3.6.1.4.1.9.9.487.0
ciscoRttMonRtpMIBObjects	1.3.6.1.4.1.9.9.487.1
STR rttMonLatestRtpErrorSenseDescription	1.3.6.1.4.1.9.9.42.1.5.3.1.12	DisplayString	read-only	An sense description for the completion status of the latest RTP operation.
G32 rttMonLatestRtpOperAvgOWDS	1.3.6.1.4.1.9.9.42.1.5.3.1.23	Gauge32	read-only	Average one way latency value in destination to source direction
G32 rttMonLatestRtpOperAvgOWSD	1.3.6.1.4.1.9.9.42.1.5.3.1.20	Gauge32	read-only	Average one way latency value in source to destination direction.
rttMonLatestRtpOperEntry	1.3.6.1.4.1.9.9.42.1.5.3.1		not-accessible	An entry in RTP operation talbe. Each entry specifies the results and statistics for the latest RTP operation.
G32 rttMonLatestRtpOperFrameLossDS	1.3.6.1.4.1.9.9.42.1.5.3.1.7	Gauge32	read-only	Number of CODEC frame loss events at source for latest operation.
G32 rttMonLatestRtpOperIAJitterDS	1.3.6.1.4.1.9.9.42.1.5.3.1.2	Gauge32	read-only	Inter-arrival Jitter at source for the latest operation.
G32 rttMonLatestRtpOperIAJitterSD	1.3.6.1.4.1.9.9.42.1.5.3.1.13	Gauge32	read-only	Inter-arrival jitter at destination for latest operation.
G32 rttMonLatestRtpOperMaxOWDS	1.3.6.1.4.1.9.9.42.1.5.3.1.22	Gauge32	read-only	Maximum one way latency value in destination to source direction.
G32 rttMonLatestRtpOperMaxOWSD	1.3.6.1.4.1.9.9.42.1.5.3.1.19	Gauge32	read-only	Maximum one way latency value in source to destination direction.
G32 rttMonLatestRtpOperMinOWDS	1.3.6.1.4.1.9.9.42.1.5.3.1.21	Gauge32	read-only	Minimum one way latency value in destination to source direction.
G32 rttMonLatestRtpOperMinOWSD	1.3.6.1.4.1.9.9.42.1.5.3.1.18	Gauge32	read-only	Minimum one way latency value in source to destination direction.
G32 rttMonLatestRtpOperMOSCQDS	1.3.6.1.4.1.9.9.42.1.5.3.1.9	Gauge32	read-only	Estimated Mean Opinion Score for conversational quality at source for latest operation.
G32 rttMonLatestRtpOperMOSCQSD	1.3.6.1.4.1.9.9.42.1.5.3.1.17	Gauge32	read-only	Estimated mean opinion score for conversational quality at destination for latest operation.
G32 rttMonLatestRtpOperMOSLQDS	1.3.6.1.4.1.9.9.42.1.5.3.1.10	Gauge32	read-only	Estimated Mean Opinion Score for listening quality at source for latest operation.
G32 rttMonLatestRtpOperPacketEarlyDS	1.3.6.1.4.1.9.9.42.1.5.3.1.5	Gauge32	read-only	Number of early packets at source for the latest operation.
G32 rttMonLatestRtpOperPacketLateDS	1.3.6.1.4.1.9.9.42.1.5.3.1.4	Gauge32	read-only	Number of late packets at source for the latest operation.
G32 rttMonLatestRtpOperPacketLossDS	1.3.6.1.4.1.9.9.42.1.5.3.1.3	Gauge32	read-only	Number of packets lost from destination to source for the latest operation.
G32 rttMonLatestRtpOperPacketLossSD	1.3.6.1.4.1.9.9.42.1.5.3.1.14	Gauge32	read-only	Number of packets lost from source to destination for latest operation.
G32 rttMonLatestRtpOperPacketOOSDS	1.3.6.1.4.1.9.9.42.1.5.3.1.6	Gauge32	read-only	Number of out of sequence packets at source for the latest operation.
G32 rttMonLatestRtpOperPacketsMIA	1.3.6.1.4.1.9.9.42.1.5.3.1.15	Gauge32	read-only	Number of packets missing in action while measuring statistics in source to destination direction
G32 rttMonLatestRtpOperRFactorDS	1.3.6.1.4.1.9.9.42.1.5.3.1.8	Gauge32	read-only	Computed value of R factor at source for latest operation.
G32 rttMonLatestRtpOperRFactorSD	1.3.6.1.4.1.9.9.42.1.5.3.1.16	Gauge32	read-only	Estimated value of R-factor at destination for latest operation.
G32 rttMonLatestRtpOperRTTEx	1.3.6.1.4.1.9.9.42.1.5.3.1.1	Gauge32	read-only	Round trip time for RTP packet.
RTT rttMonLatestRtpOperSense	1.3.6.1.4.1.9.9.42.1.5.3.1.11	RttResponseSense	read-only	An application specific sense code for the completion status of the latest operation.
rttMonLatestRtpOperTable	1.3.6.1.4.1.9.9.42.1.5.3		not-accessible	A table which contains the status of latest RTP operation. Each conceptual row corresponds to a RTP operation defined in rttMonCtrlAdminTable and has same index as rttMonCtrlAdminTable. An entry in this table is created only if the rttMonCtrlAdminRttType is 'rtp', the rttMonEchoAdminProtocol is 'rtpAppl' and the rttMonEchoAdminTargetAddress is appropriately configured. The entry will start to collect data when the rttMonCtrlAdminStatus is moved into 'active' state. The entry will be removed when the corresponding rttMonCtrlAdminStatus is in 'destroy' state.
G32 rttMonLatestRtpOperTotalPaksDS	1.3.6.1.4.1.9.9.42.1.5.3.1.25	Gauge32	read-only	Total number of packets sent in destination to source direction
G32 rttMonLatestRtpOperTotalPaksSD	1.3.6.1.4.1.9.9.42.1.5.3.1.24	Gauge32	read-only	Total number of packets sent in source to destination direction
rttMonRtpStatsEntry	1.3.6.1.4.1.9.9.42.1.3.6.1		not-accessible	A list of objects which accumulate the results of a series of RTP operations over a 60 minute time period or a time period stored in rttMonScheduleAdminRttLife, whichever is smaller. This entry is created only if the rttMonCtrlAdminRttType is 'rtp'.
G32 rttMonRtpStatsFrameLossDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.14	Gauge32	read-only	Average Number of Codec Frame loss events at Source.
G32 rttMonRtpStatsFrameLossDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.16	Gauge32	read-only	Maximum number of Codec Frame loss events at Source.
G32 rttMonRtpStatsFrameLossDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.15	Gauge32	read-only	Minimum Number of Codec Frame loss events at Source.
G32 rttMonRtpStatsIAJitterDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.5	Gauge32	read-only	Average of inter-arrival jitter at source.
G32 rttMonRtpStatsIAJitterDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.7	Gauge32	read-only	Maximum of inter-arrival jitter at source.
G32 rttMonRtpStatsIAJitterDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.6	Gauge32	read-only	Minimum of inter-arrival jitter at source.
G32 rttMonRtpStatsIAJitterSDAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.26	Gauge32	read-only	Average of inter-arrival jitter at destination.
G32 rttMonRtpStatsIAJitterSDMax	1.3.6.1.4.1.9.9.42.1.3.6.1.28	Gauge32	read-only	Maximum of inter-arrival jitter at destination.
G32 rttMonRtpStatsIAJitterSDMin	1.3.6.1.4.1.9.9.42.1.3.6.1.27	Gauge32	read-only	Minimum of inter-arrival jitter at destination.
G32 rttMonRtpStatsMOSCQDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.20	Gauge32	read-only	Average Estimated Mean Opinion Score for conversational quality at Source.
G32 rttMonRtpStatsMOSCQDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.22	Gauge32	read-only	Maximum Estimated Mean Opinion Score for conversational quality at Source.
G32 rttMonRtpStatsMOSCQDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.21	Gauge32	read-only	Minimum Estimated Mean Opinion Score for conversational quality at Source.
G32 rttMonRtpStatsMOSCQSDAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.36	Gauge32	read-only	Average estimated mean opinion score for conversational quality at destination.
G32 rttMonRtpStatsMOSCQSDMax	1.3.6.1.4.1.9.9.42.1.3.6.1.39	Gauge32	read-only	Maximum estimated mean opinion score for conversational quality at destination.
G32 rttMonRtpStatsMOSCQSDMin	1.3.6.1.4.1.9.9.42.1.3.6.1.37	Gauge32	read-only	Minimum estimated mean opinion score for conversational quality at destination.
G32 rttMonRtpStatsMOSLQDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.23	Gauge32	read-only	Average Estimated Mean Opinion Score for listening quality at Source.
G32 rttMonRtpStatsMOSLQDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.25	Gauge32	read-only	Maximum Estimated Mean Opinion Score for listening quality at Source.
G32 rttMonRtpStatsMOSLQDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.24	Gauge32	read-only	Minimum Estimated Mean Opinion Score for listening quality at Source.
G32 rttMonRtpStatsOperAvgOWDS	1.3.6.1.4.1.9.9.42.1.3.6.1.43	Gauge32	read-only	Average one way latency value from destination to source
G32 rttMonRtpStatsOperAvgOWSD	1.3.6.1.4.1.9.9.42.1.3.6.1.40	Gauge32	read-only	Average one way latency value from source to destination
G32 rttMonRtpStatsOperMaxOWDS	1.3.6.1.4.1.9.9.42.1.3.6.1.45	Gauge32	read-only	Maximum one way latency value from destination to source
G32 rttMonRtpStatsOperMaxOWSD	1.3.6.1.4.1.9.9.42.1.3.6.1.42	Gauge32	read-only	Maximum one way latency value from source to destination
G32 rttMonRtpStatsOperMinOWDS	1.3.6.1.4.1.9.9.42.1.3.6.1.44	Gauge32	read-only	Minimum one way latency value from destination to source
G32 rttMonRtpStatsOperMinOWSD	1.3.6.1.4.1.9.9.42.1.3.6.1.41	Gauge32	read-only	Minimum one way latency value from source to destination
G32 rttMonRtpStatsPacketEarlyDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.12	Gauge32	read-only	Average number of early packets at source.
G32 rttMonRtpStatsPacketLateDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.11	Gauge32	read-only	Average number of late packets at source.
G32 rttMonRtpStatsPacketLossDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.8	Gauge32	read-only	Average number of packets lost from destination to source.
G32 rttMonRtpStatsPacketLossDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.10	Gauge32	read-only	Maximum number of packets lost from destination to source.
G32 rttMonRtpStatsPacketLossDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.9	Gauge32	read-only	Minimum number of packets lost from destination to source.
G32 rttMonRtpStatsPacketLossSDAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.29	Gauge32	read-only	Average number of packets lost from source to destination.
G32 rttMonRtpStatsPacketLossSDMax	1.3.6.1.4.1.9.9.42.1.3.6.1.31	Gauge32	read-only	Maximum number of packets lost from source to destination.
G32 rttMonRtpStatsPacketLossSDMin	1.3.6.1.4.1.9.9.42.1.3.6.1.30	Gauge32	read-only	Minimum number of packets lost from source to destination.
G32 rttMonRtpStatsPacketOOSDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.13	Gauge32	read-only	Average number of out of sequence packets at source.
G32 rttMonRtpStatsPacketsMIAAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.32	Gauge32	read-only	Average number of lost packets whose loss direction couldn't be determined.
G32 rttMonRtpStatsRFactorDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.17	Gauge32	read-only	Average Computed value of R factor at Source.
G32 rttMonRtpStatsRFactorDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.19	Gauge32	read-only	Maximum Computed value of R factor at Source.
G32 rttMonRtpStatsRFactorDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.18	Gauge32	read-only	Minimum Computed value of R factor at Source.
G32 rttMonRtpStatsRFactorSDAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.33	Gauge32	read-only	Average estimated value of R-factor at destination.
G32 rttMonRtpStatsRFactorSDMax	1.3.6.1.4.1.9.9.42.1.3.6.1.35	Gauge32	read-only	Maximum estimated value of R-factor at destination.
G32 rttMonRtpStatsRFactorSDMin	1.3.6.1.4.1.9.9.42.1.3.6.1.34	Gauge32	read-only	Minimum estimated value of R-factor at destination.
G32 rttMonRtpStatsRTTAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.2	Gauge32	read-only	Average Round trip time.
G32 rttMonRtpStatsRTTMax	1.3.6.1.4.1.9.9.42.1.3.6.1.4	Gauge32	read-only	Maximum Round trip time.
G32 rttMonRtpStatsRTTMin	1.3.6.1.4.1.9.9.42.1.3.6.1.3	Gauge32	read-only	Minimum Round trip time.
TIM rttMonRtpStatsStartTimeIndex	1.3.6.1.4.1.9.9.42.1.3.6.1.1	TimeStamp	not-accessible	The time when this row was created.
rttMonRtpStatsTable	1.3.6.1.4.1.9.9.42.1.3.6		not-accessible	The table is for RTP operation statistics. It contains summarized information of the results for one RTP operation. A rolling accumulated history of this information is maintained in a series of hourly 'group(s)'. The operation of this table is same as that of rttMonStatsCaptureTable, except that this table will store 2 hours of data. It is a rollover table. When rttMonRtpStatsStartTimeIndex groups exceeds the rttMonStatisticsAdminNumHourGroups value, the oldest corresponding hourly group will be deleted and will be replaced with the new rttMonRtpStatsStartTimeIndex hourly group.
G32 rttMonRtpStatsTotalPacketsDSAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.49	Gauge32	read-only	Average number of packets sent from destination to source
G32 rttMonRtpStatsTotalPacketsDSMax	1.3.6.1.4.1.9.9.42.1.3.6.1.50	Gauge32	read-only	Maximum number of packets sent from destination to source
G32 rttMonRtpStatsTotalPacketsDSMin	1.3.6.1.4.1.9.9.42.1.3.6.1.51	Gauge32	read-only	Minimum number of packets sent from destination to source
G32 rttMonRtpStatsTotalPacketsSDAvg	1.3.6.1.4.1.9.9.42.1.3.6.1.46	Gauge32	read-only	Average number of packets sent from source to destination
G32 rttMonRtpStatsTotalPacketsSDMax	1.3.6.1.4.1.9.9.42.1.3.6.1.48	Gauge32	read-only	Maximum number of packets sent from source to destination
G32 rttMonRtpStatsTotalPacketsSDMin	1.3.6.1.4.1.9.9.42.1.3.6.1.47	Gauge32	read-only	Minimum number of packets sent from source to destination

RFC description

Measures voice quality metrics via IP SLA RTP operations including jitter and MOS scores.

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Download CISCO-RTTMON-RTP-MIB