CCAP-MIB

All MIBs › CCAP-MIB

Organization: Cable Television Laboratories, Inc.

Last Updated: 2013-04-04

Category: Cisco Devices, DOCSIS and Cable

Description: Manages DOCSIS Converged Cable Access Platform (CCAP) combining CMTS and Edge QAM functions for cable broadband delivery.

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What Is CCAP-MIB?

CCAP-MIB is a CableLabs (DOCSIS) standards MIB for Converged Cable Access Platform devices, which combine traditional CMTS (Cable Modem Termination System) and Edge QAM video functions on a single cable headend platform. It exposes interface index mapping between the physical entity table and CCAP logical interfaces, plus MPEG program-level statistics for both input and output video/data streams, including bitrate and requested bandwidth. Monitoring focus is on performance and configuration data for the video/data delivery path: operators track MPEG input/output program bitrates against requested bandwidth to detect bandwidth starvation, misconfiguration, or QAM channel overload, alongside notifications for fault conditions. It depends on the broader DOCSIS/CableLabs MIB family and the standard ENTITY-MIB for physical index mapping. Typical deployment is in cable operator headends running CCAP hardware to deliver combined video and DOCSIS broadband services. Network engineers evaluating or troubleshooting this functionality can download the CCAP-MIB file directly to load it into their MIB browser.

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

DOCSIS CCAP platform (cable headend, CMTS/Edge QAM)

Monitoring Examples

An operator polls ccapMpegInputProgTable, comparing ccapMpegInputProgBitRate against ccapMpegInputProgRequestedBandwidth per program, to detect an input video program not getting enough bandwidth. ccapMpegOutputProgBitRate in ccapMpegOutputProgTable is checked similarly for outbound QAM streams, while ccapInterfaceIndexMapTable ties a CCAP logical interface back to entPhysicalIndex so a bandwidth problem can be correlated with a specific physical line card, and ccapNotifications would raise an alert on related fault conditions.

What Can Be Monitored

MPEG input/output program bitrate
requested vs actual bandwidth
interface-to-physical-entity mapping
CCAP fault notifications

Imported Objects

From CLAB-DEF-MIB

clabProjDocsis

OBJECT-IDENTITY

From ENTITY-MIB

PhysicalIndexOrZero

From IF-MIB

ifIndex

OBJECT-TYPE

From SCTE-HMS-MPEG-MIB

mpegInputProgEntry	OBJECT-TYPE
mpegInputProgIndex	OBJECT-TYPE
mpegInputTSIndex	OBJECT-TYPE
mpegOutputProgEntry	OBJECT-TYPE
mpegOutputProgIndex	OBJECT-TYPE
mpegOutputTSIndex	OBJECT-TYPE
mpegVideoSessionIndex	OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Gauge32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using ccapEcmgCwMessageCount OID:

Select a DOCSIS CCAP cable headend platform (CMTS/Edge QAM) 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 ccapEcmgCwMessageCount into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of Control World (CW) messages received from this ECMG. 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 Counter64-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
ccapMib	1.3.6.1.4.1.4491.2.1.24			This MIB module contains additional management objects needed for the management of CCAP devices. Copyright 2011 Cable Television Laboratories, Inc. All rights reserved.
ccapNotifications	1.3.6.1.4.1.4491.2.1.24.0
ccapObjects	1.3.6.1.4.1.4491.2.1.24.1
ccapInterfacesObjects	1.3.6.1.4.1.4491.2.1.24.1.1
ccapInterfaceIndexMapTable	1.3.6.1.4.1.4491.2.1.24.1.1.1		not-accessible	This object reports the correspondent device path for the Interface index defined by an object instance.
ccapInterfaceIndexMapEntry	1.3.6.1.4.1.4491.2.1.24.1.1.1.1		not-accessible	The conceptual row of ccapInterfaceIndexMapTable. The index of this object corresponds to the Interface MIB index for interfaces of IANA interface types: 'docsCableMaclayer' -- '127' 'docsCableDownstream' -- '128' 'docsCableUpstream' -- '129' 'docsCableUpstreamChannel' -- '205' 'docsCableUpstreamRfPort' -- '256' 'cableDownstreamRfPort' -- '257'
STR ccapInterfaceIndexMapPath	1.3.6.1.4.1.4491.2.1.24.1.1.1.1.1	SnmpAdminString	read-only	This attribute indicates the CCAP node XPath expression that identifies the resource associated with the interface index. For example, The path value of the resource associated with an upstream logical channel with index = 5, in upstream physical channel index = 7, in an Upstream RF port number = 15, from an US RF Line Card, in slot number = 3, chassis id = 1 is represented as: /ccap/chassis[id=1] /slot[number=3] /rf-line-card /us-rf-port[number=15] /upstream-physical-channel[index=7] /upstream-logical-channel[index=5] In another example, the path value of the resource associated with a DOCSIS MAC domain with name = 'ca5/1/0'is represented as: /ccap/docsis/docs-mac-domain/mac-domain[mac-domain-name='ca5/1/0'] Note: Line breaks in the examples above were added for clarity.
PHY ccapInterfaceIndexMapEntPhysicalIndex	1.3.6.1.4.1.4491.2.1.24.1.1.1.1.2	PhysicalIndexOrZero	read-only	This Attribute corresponds to the entPhysical Index associated with the resource. Zero if undefined
ccapMpegObjects	1.3.6.1.4.1.4491.2.1.24.1.2
ccapMpegInputProgTable	1.3.6.1.4.1.4491.2.1.24.1.2.1		not-accessible	This object extends the SCTE-HMS-MPEG-MIB mpegInputProgTable for the CCAP system.
ccapMpegInputProgEntry	1.3.6.1.4.1.4491.2.1.24.1.2.1.1		not-accessible	The Conceptual row of ccapMpegInputProgTable.
G32 ccapMpegInputProgBitRate	1.3.6.1.4.1.4491.2.1.24.1.2.1.1.1	Gauge32	read-only	Indicates the measured MPEG input program bitrate in bps.
U32 ccapMpegInputProgRequestedBandwidth	1.3.6.1.4.1.4491.2.1.24.1.2.1.1.2	Unsigned32	read-only	Requested bandwidth for this MPEG input program. This value is used to validate the total QAM bandwidth before allowing the creation of a new session. It is also used to validate the input program bandwidth overflow situation during the transmission. In the case of special stream without PCR, it is used to limit the output bandwidth of that special program. A zero (0) value is returned if no bandwidth validation is done on this program.
ccapMpegOutputProgTable	1.3.6.1.4.1.4491.2.1.24.1.2.2		not-accessible	This object extends the SCTE-HMS-MPEG-MIB mpegOutputProgTable for the CCAP video down channel.
ccapMpegOutputProgEntry	1.3.6.1.4.1.4491.2.1.24.1.2.2.1		not-accessible	The Conceptual row of ccapMpegOutputProgTable.
G32 ccapMpegOutputProgBitRate	1.3.6.1.4.1.4491.2.1.24.1.2.2.1.1	Gauge32	read-only	Indicates the output program bitrate in bps.
ccapMpegInputProgVideoSessionTable	1.3.6.1.4.1.4491.2.1.24.1.2.3		not-accessible	This object specifies the list of video sessions that the MPEG input program are feeding.
ccapMpegInputProgVideoSessionEntry	1.3.6.1.4.1.4491.2.1.24.1.2.3.1		not-accessible	The conceptual row of ccapMpegInputProgVideoSessionTable.
INT ccapMpegInputProgVideoSessionStatus	1.3.6.1.4.1.4491.2.1.24.1.2.3.1.1	INTEGER	read-only	This attribute indicates the status of the session. Only active sessions need to be reported.
ccapMpegOutputProgVideoSessionTable	1.3.6.1.4.1.4491.2.1.24.1.2.4		not-accessible	This object specifies the video sessions that are used to feed the video down channel program.
ccapMpegOutputProgVideoSessionEntry	1.3.6.1.4.1.4491.2.1.24.1.2.4.1		not-accessible	The conceptual row of ccapMpegOutputProgVideoSessionTable.
INT ccapMpegOutputProgVideoSessionStatus	1.3.6.1.4.1.4491.2.1.24.1.2.4.1.4	INTEGER	read-only	This attribute indicates the status of the session. Only active sessions need to be reported.
ccapCryptoObjects	1.3.6.1.4.1.4491.2.1.24.1.3
ccapEcmgStatusTable	1.3.6.1.4.1.4491.2.1.24.1.3.1		not-accessible	This object reports status information for each instance of an Entitlement Control Message Generator (ECMG).
ccapEcmgStatusEntry	1.3.6.1.4.1.4491.2.1.24.1.3.1.1		not-accessible	The conceptual row of ccapEcmgStatusTable.
U32 ccapEcmgIndex	1.3.6.1.4.1.4491.2.1.24.1.3.1.1.1	Unsigned32	not-accessible	This Attribute identifies an instance of an ECMG.
G32 ccapEcmgNumActiveSessions	1.3.6.1.4.1.4491.2.1.24.1.3.1.1.2	Gauge32	read-only	The current number of encryption sessions managed by this ECMG.
C64 ccapEcmgCwMessageCountEx	1.3.6.1.4.1.4491.2.1.24.1.3.1.1.3	Counter64	read-only	The number of Control World (CW) messages received from this ECMG.
ccapEcmdStatusTable	1.3.6.1.4.1.4491.2.1.24.1.3.2		not-accessible	This object reports status information for each instance Entitlement Control Message Decoder (ECMD).
ccapEcmdStatusEntry	1.3.6.1.4.1.4491.2.1.24.1.3.2.1		not-accessible	The conceptual row of ccapEcmdStatusTable.
U32 ccapEcmdIndex	1.3.6.1.4.1.4491.2.1.24.1.3.2.1.1	Unsigned32	not-accessible	This Attribute identifies an instance of ECMD.
G32 ccapEcmdNumActiveSessions	1.3.6.1.4.1.4491.2.1.24.1.3.2.1.2	Gauge32	read-only	The current number of encryption sessions managed by this ECMD.
C64 ccapEcmdCwMessageCount	1.3.6.1.4.1.4491.2.1.24.1.3.2.1.3	Counter64	read-only	The number of Control World (CW) messages received from this ECMD.
ccapMpegDecryptSessionTable	1.3.6.1.4.1.4491.2.1.24.1.3.3		not-accessible	The (conceptual) table of those video sessions defined in the mpegVideoSessionTable, from the SCTE-HMS-MPEG-MIB, which require decryption. Note that this table is potentially sparse: a (conceptual) entry exists only if the video session requires decryption.
ccapMpegDecryptSessionEntry	1.3.6.1.4.1.4491.2.1.24.1.3.3.1		not-accessible	A (conceptual) entry for a decrypted video session. The mpegVideoSessionIndex represents the entry in the mpegVideoSessionTable that corresponds to the ccapMpegDecryptSessionEntry.
T/F ccapMpegDecryptSessionDecrypted	1.3.6.1.4.1.4491.2.1.24.1.3.3.1.1	TruthValue	read-only	Denotes whether or not the video session was decrypted. This object should always be set to 'true'.
ccapMibConformance	1.3.6.1.4.1.4491.2.1.24.2
ccapMibCompliances	1.3.6.1.4.1.4491.2.1.24.2.1
ccapCompliance	1.3.6.1.4.1.4491.2.1.24.2.1.1			The compliance statement for the.
ccapMibGroups	1.3.6.1.4.1.4491.2.1.24.2.2
ccapInterfacesGroup	1.3.6.1.4.1.4491.2.1.24.2.2.1			Objects implemented in the ccapInterfacesGroup.
ccapMpegGroup	1.3.6.1.4.1.4491.2.1.24.2.2.2			Objects implemented in the ccapMpegGroup.
ccapCryptoGroup	1.3.6.1.4.1.4491.2.1.24.2.2.3			Objects implemented in the ccapCryptoGroup.

RFC description

Defines management objects for Converged Cable Access Platform devices and MPEG content processing.

Start monitoring DOCSIS CCAP cable headend platform (CMTS/Edge QAM) 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 CCAP-MIB