CADANT-CMTS-IP-VIDEO-MIB

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Organization: Arris International, Inc.

Last Updated: 2011-08-04

Category: DOCSIS and Cable, Vendor: ARRIS

Description: Manages IP video streaming services and multicast video delivery configuration on ARRIS/Cadant CMTS platforms.

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What Is CADANT-CMTS-IP-VIDEO-MIB?

CADANT-CMTS-IP-VIDEO-MIB is an ARRIS (formerly Cadant) enterprise MIB under the CADANT-PRODUCTS-MIB cadCmtsIpVideo arc that manages IP video (VOD and linear/multicast) service parameters and monitoring on the Cadant/ARRIS C4 CMTS platform. Configuration scalars under cadSysIpVideoCfg include cadSysIpVideoAttributeMask (which DOCSIS service-flow attribute bits identify IP Video traffic for monitoring), cadSysIpVideoVodThreshold/LinearThreshold (millisecond watermarks for flagging slow VOD/linear stream setups), cadSysIpVideoMulticastControlled (whether multicast is subject to admission control), and cadSysIpVideoMulticastAllowedUsage (percentage of downstream capacity reserved for multicast). Monitoring data lives in cadIPVideoMonitorDropsTable (hourly cadIpVideoMonitorMulticastDrops/UnicastDrops per card/port connector, with a cadIpVideoMonitorDropsSuspectFlag data-quality flag) and cadIpVideoMonitorDsChlTable (per-downstream-channel cadIpVideoMonitorMcastPkts/Flows and UcastPkts/Flows over rolling one-hour windows), giving operators visibility into whether video streams are being delivered cleanly or experiencing packet loss. It depends on DOCS-IF-MIB/DOCS-IF3-MIB for DOCSIS attribute-mask and power-level types and on CADANT-TC for card/port identifiers, and it is deployed on ARRIS/Cadant C4 CMTS chassis delivering IP video services over DOCSIS cable plant; MSO engineers can pull the CADANT-CMTS-IP-VIDEO-MIB MIB to build video-quality dashboards against this object set.

IPNetwork Monitor allows you to monitor SNMP objects defined in CADANT-CMTS-IP-VIDEO-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

ARRIS (Cadant) C4 CMTS chassis

Monitoring Examples

An operator polls cadIPVideoMonitorDropsTable for a given card/port connector to watch cadIpVideoMonitorMulticastDrops over successive hourly intervals, cross-checking cadIpVideoMonitorDropsSuspectFlag to rule out a CAM-failover data anomaly; a sustained rise in multicast drops on a downstream channel serving several set-top boxes would indicate congestion or a DOCSIS channel-quality problem affecting linear IP video delivery.

What Can Be Monitored

IP video attribute-mask configuration
VOD/linear setup-time thresholds
multicast admission-control settings and allowed usage percentage
hourly multicast/unicast drop counts per port
per-downstream-channel multicast/unicast packet and flow counts
monitoring-data suspect/validity flag

Imported Objects

From CADANT-PRODUCTS-MIB

cadCmtsIpVideo

OBJECT-IDENTITY

From CADANT-TC

CardId
PortId

From DOCS-IF-MIB

TenthdB

From DOCS-IF3-MIB

AttributeMask

From IF-MIB

InterfaceIndexOrZero
ifIndex	OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString
SnmpEngineID

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
DisplayString
MacAddress
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
cadCmtsIpVideoMib	1.3.6.1.4.1.4998.1.1.125.1			Arris C4 system IP video parameters and constants
cadSysIpVideoCfg	1.3.6.1.4.1.4998.1.1.125.1.1
ATT cadSysIpVideoAttributeMask	1.3.6.1.4.1.4998.1.1.125.1.1.1	AttributeMask	read-write	This Attribute Mask provides a mechanism for the MSO to tell the C4 CMTS which attribute bit(s) indicate a type of IP Video for the purposes of monitoring. Only the least significant 16 bits of this mask (the ones numbered 16-31) can be non-zero.
U32 cadSysIpVideoVodThreshold	1.3.6.1.4.1.4998.1.1.125.1.1.2	Unsigned32	read-write	This threshold timer parameter sets the watermark against which all IP Video VOD setups will be measured. When a setup exceeds this parameter, then a counter is pegged. For the purpose of this threshold, reception of the request message (Gate-Set in PCMM) begins the setup time and completion of all necessary protocol exchanges at both the CM and network side stops the timer.
U32 cadSysIpVideoLinearThreshold	1.3.6.1.4.1.4998.1.1.125.1.1.3	Unsigned32	read-write	This threshold timer parameter sets the watermark against which all IP Video Linear setups will be measured. When a setup exceeds this parameter, then a counter is pegged. For the purpose of this threshold, reception of the request message (Gate-Set in PCMM) begins the setup time and completion of all necessary protocol exchanges at both the CM and network side stops the timer.
U32 cadSysIpVideoInterDbcDelayTimer	1.3.6.1.4.1.4998.1.1.125.1.1.4	Unsigned32	read-write	This object specifies the time the C4 will wait after receiving a DBC-RSP from a single modem before the C4 launches the next DBC-REQ to that same modem.
T/F cadSysIpVideoMulticastControlled	1.3.6.1.4.1.4998.1.1.125.1.1.5	TruthValue	read-write	Indicates whether IP Multicast is subject to Admission Control. A value of true(1) indicates that all IP Multicast service flows are subjected to a CAC check.
INT cadSysIpVideoMulticastAllowedUsage	1.3.6.1.4.1.4998.1.1.125.1.1.6	INTEGER	read-write	Maximum percentage of downstream resources that may be admitted for use by Multicast services. Unlike other similar parameters in the cadPCMibBase section, this parameter is the actual limiting MIB parameter to be used across all downstream channels and is not just the default value for other MIB parameters. This value at all times must be less than or equal to 100% minus all default CAC downstream channel parameters that reserve resources for other applications (including, but not necessarily limited to, emergency and normal voice).
cadIpVideoMonitor	1.3.6.1.4.1.4998.1.1.125.1.3
cadIPVideoMonitorDropsTable	1.3.6.1.4.1.4998.1.1.125.1.3.1		not-accessible	A circular table of historic drop counts for the downstream channels which transport IP Video streams within a DS-SG.
cadIpVideoMonitorDropsEntry	1.3.6.1.4.1.4998.1.1.125.1.3.1.1		not-accessible	The drop counts for the downstream IP Video channels associated with a connector. The cadIpVideoMonitorCardId key is for the card that contains the connector. The cadIpVideoMonitorPortConnectorId indicates which downstream port the counts are for. The cadIpVideoMonitorCurTimeIdx is a sequence number.
U32 cadIpVideoMonitorCurTimeIdx	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.1	Unsigned32	not-accessible	A unique index to identify a cadIpVideoMonitorDropsEntry.
U32 cadIpVideoMonitorMulticastDrops	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.2	Unsigned32	read-only	This object represents the total number of multicast packets dropped for DOCSIS IP video channels in the downstream service group over a one hour period.
U32 cadIpVideoMonitorUnicastDrops	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.3	Unsigned32	read-only	This object represents the total number of multicast packets dropped for DOCSIS IP video channels in the downstream service group over a one hour period.
T/F cadIpVideoMonitorDropsSuspectFlag	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.4	TruthValue	read-only	This object indicates that the rest of the data in this row is suspected to not correctly reflect the counts for the one-hour monitoring period. This condition might have been caused by any scenario which might have resulted in errant statistics (for example, a CAM failover).
DAT cadIpVideoMonitorCreateTime	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.5	DateAndTime	read-only	This object indicates the time when the row is created.
CAR cadIpVideoMonitorCardId	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.6	CardId	not-accessible	The unique id of this card within the shelf.
POR cadIpVideoMonitorPortConnectorId	1.3.6.1.4.1.4998.1.1.125.1.3.1.1.7	PortId	read-write	For a DOCSIS or EQAM type port, this is the rear PIC connector.
cadIpVideoMonitorDsChlTable	1.3.6.1.4.1.4998.1.1.125.1.3.2		not-accessible	A circular table of historic drop counts for the downstream channels which transport IP Video streams within a DS-SG.
cadIpVideoMonitorDsChlEntry	1.3.6.1.4.1.4998.1.1.125.1.3.2.1		not-accessible	The drop counts for a DS-SG. The ifIndex key is for the downstream channel that carries IP Video service. The cadIpVideoMonitorDsChlCurTimeIdx is a sequence number.
U32 cadIpVideoMonitorDsChlCurTimeIdx	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.1	Unsigned32	not-accessible	A unique index to identify a cadIpVideoMonitorDsChlEntry.
U32 cadIpVideoMonitorMcastPkts	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.2	Unsigned32	read-only	This object represents the total number of multicast IP Video packets transmitted for DOCSIS IP video channels in the downstream service group over a one hour period.
U32 cadIpVideoMonitorMcastFlows	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.3	Unsigned32	read-only	This object represents the total number of multicast IP Video flows created over a one hour period.
U32 cadIpVideoMonitorUcastPkts	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.5	Unsigned32	read-only	This object represents the total number of unicast IP Video packets transmitted for DOCSIS IP video channels in the downstream service group over a one hour period.
U32 cadIpVideoMonitorUcastFlows	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.7	Unsigned32	read-only	This object represents the total number of unicast IP Video flows created over a one hour period.
T/F cadIpVideoMonitorDsChlSuspectFlag	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.9	TruthValue	read-only	This object indicates that the rest of the data in this row is suspected to not correctly reflect the counts for the one-hour monitoring period. This condition might have been caused by any scenario which might have resulted in errant statistics (for example, a CAM failover).
DAT cadIpVideoMonitorDsChlCreateTime	1.3.6.1.4.1.4998.1.1.125.1.3.2.1.10	DateAndTime	read-only	This object incicates when the row is created.

RFC description

Defines IP video monitoring parameters and multicast usage control for Arris CMTS systems.

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Download CADANT-CMTS-IP-VIDEO-MIB

What Is CADANT-CMTS-IP-VIDEO-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description