RPHY-NDF-NDR-MIB

All MIBs › RPHY-NDF-NDR-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2018-09-25

Category: DOCSIS and Cable

Description: Manages Cisco Remote PHY node downstream and upstream channel configuration for DOCSIS deployments.

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What Is RPHY-NDF-NDR-MIB?

RPHY-NDF-NDR-MIB is a Cisco-defined MIB for Remote PHY (R-PHY) devices used in DOCSIS cable access networks, covering Node Discovery/Forwarding (NDF) and ranging functions on the Remote PHY Device (RPD). It exposes per-channel configuration data for downstream and upstream RF ports, including frequency, bandwidth, power adjustment, and the source/destination IP addressing used for NDF sessions between the RPD and the cable core. Its monitoring value lies in confirming that individual RF ports/channels are correctly enabled, correctly addressed, and running with the expected session ID and RF parameters -- essentially software/configuration status of the R-PHY node -- rather than reporting classic hardware counters like CPU load or temperature. It belongs to the broader DOCSIS Remote PHY MIB family (the docsRphy* namespace) tied to CableLabs' Remote PHY / Distributed Access Architecture specifications. It is typically deployed by cable operators (MSOs) managing fiber nodes where PHY functions have been relocated from the headend into the access network. Engineers can download the RPHY-NDF-NDR-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RPHY-NDF-NDR-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 Remote PHY Device (RPD)
DOCSIS Remote PHY node/fiber node

Monitoring Examples

An operator could poll docsRphyRpdDevNdfCfgTable / docsRphyRpdDevNdfCfgEntry rows to check docsRphyRpdDevNdfEnable alongside docsRphyRpdDevNdfRfPort and docsRphyRpdDevNdfRfChannel to confirm a specific channel's NDF session is active. Cross-checking docsRphyRpdDevNdfDstIPAddr and docsRphyRpdDevNdfSrcIPAddr against expected core/RPD addressing would reveal a misconfigured or dropped NDF session, while docsRphyRpdDevNdfFrequency and docsRphyRpdDevNdfBandwidth confirm the RF parameters match plan. An unexpected docsRphyRpdDevNdfPowerAdjust value would flag an RF power tuning issue on that channel.

What Can Be Monitored

NDF session enable state
RF port and channel assignment
channel frequency and bandwidth
source/destination IP addressing for NDF sessions
RF power adjustment
session ID

Imported Objects

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From INET-ADDRESS-MIB

InetAddress

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
TruthValue

How to Use in IPNetwork Monitor

Example using docsRphyRpdDevNdfRpdInPktCount OID:

Select a Cisco Remote PHY Device (RPD), DOCSIS Remote PHY node/fiber node (channel/session configuration) 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 docsRphyRpdDevNdfRpdInPktCount 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. This attribute reports the number of packets received by the RPD on a given NDF stream. 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
rphyNdfNdrMIB	1.3.6.1.4.1.9.9.857			description
rphyNdfNdrMIBNotifs	1.3.6.1.4.1.9.9.857.0
NTF rphyNdfNdrMIBEventName	1.3.6.1.4.1.9.9.857.0.1			Test Notifiation Type
rphyNdfNdrMIBObjects	1.3.6.1.4.1.9.9.857.1
docsRphyRpdDevNdfCfgTable	1.3.6.1.4.1.9.9.857.1.1		not-accessible	This table provides OOB NDF channel's status and configuration information, for example channel frequency, width, poweradjust, admin status etc. This table also allows to enable or disable the NDF channel's admin status.
docsRphyRpdDevNdfCfgEntry	1.3.6.1.4.1.9.9.857.1.1.1		not-accessible	Each entry contains status and configuration information for a single NDF Channel.
MAC docsRphyRpdDevNdfUniqueId	1.3.6.1.4.1.9.9.857.1.1.1.1	MacAddress	not-accessible	This key attribute specifies a globally unique 6-byte identifier for the RPD. By convention, an RPD SHOULD use the MAC address of the lowest numbered Ethernet port facing the CIN.
U32 docsRphyRpdDevNdfRfPort	1.3.6.1.4.1.9.9.857.1.1.1.2	Unsigned32	not-accessible	This key attribute reports the RPD RF port number carrying this NDF channel.
U32 docsRphyRpdDevNdfRfChannel	1.3.6.1.4.1.9.9.857.1.1.1.3	Unsigned32	not-accessible	This key attribute reports the NDF channel number.
T/F docsRphyRpdDevNdfEnable	1.3.6.1.4.1.9.9.857.1.1.1.4	TruthValue	read-write	This attribute indicates whether the NDF stream is enabled or disabled. Also, using this attribute NDF stream can be enabled or disabled.
IP docsRphyRpdDevNdfDstIPAddr	1.3.6.1.4.1.9.9.857.1.1.1.5	InetAddress	read-only	This attribute reports the Group IP address of the RPD multicast NDF stream. When this filed is 0.0.0.0 or 0::0 (::) then the NDF stream is a unicast NDF stream.
IP docsRphyRpdDevNdfSrcIPAddr	1.3.6.1.4.1.9.9.857.1.1.1.6	InetAddress	read-only	This attribute reports the IP address of the transmitter of the L2TP stream.
U32 docsRphyRpdDevNdfSessionId	1.3.6.1.4.1.9.9.857.1.1.1.7	Unsigned32	read-only	This attribute reports the L2TP session ID of the NDF stream.
U32 docsRphyRpdDevNdfFrequency	1.3.6.1.4.1.9.9.857.1.1.1.8	Unsigned32	read-only	This attribute reports the center frequency of the NDF channel.
U32 docsRphyRpdDevNdfBandwidth	1.3.6.1.4.1.9.9.857.1.1.1.9	Unsigned32	read-only	This attribute reports the bandwidth of the NDF channel. Channel widths supported for NDF are- Mode 0 : 80000Hz, Mode 1 : 160000Hz, Mode 2 : 320000Hz, Mode 3 : 640000Hz, Mode 4 : 1280000Hz, Mode 5 : 2560000Hz, Mode 6 : 5120000Hz, Mode 7 : 25600000Hz.
I32 docsRphyRpdDevNdfPowerAdjust	1.3.6.1.4.1.9.9.857.1.1.1.10	Integer32	read-only	This attribute specifies power level adjustment for the NDF channel relative to the base power level configured for the DS RF port.
T/F docsRphyRpdDevNdfRfMute	1.3.6.1.4.1.9.9.857.1.1.1.11	TruthValue	read-only	This attribute reports the current state of the RF output of the NDF channel. When Rf-mute is set to TRUE, the output RF signal is off. Similarly, when Rf-mute is set to FALSE, the output RF signal is active.
T/F docsRphyRpdDevNdfIsUnicast	1.3.6.1.4.1.9.9.857.1.1.1.12	TruthValue	read-only	This attribute indicates whether the NDF stream is unicast or multicast. When Group-IP filed is 0.0.0.0 or 0::0 (::) then the NDF stream is a unicast NDF stream.
OCT docsRphyRpdDevNdfRpdStatus	1.3.6.1.4.1.9.9.857.1.1.1.13	OCTET STRING	read-only	This attribute reports the string describing the current status of the RPD i.e 'Online' or 'Offline'. For config modify to take effect, the RPD status shoud be 'Online'.
C64 docsRphyRpdDevNdfRpdInPktCountEx	1.3.6.1.4.1.9.9.857.1.1.1.14	Counter64	read-only	This attribute reports the number of packets received by the RPD on a given NDF stream. RPD status should be 'Online' to get the actual input packets count.
C64 docsRphyRpdDevNdfRpdOutPktCount	1.3.6.1.4.1.9.9.857.1.1.1.15	Counter64	read-only	This attribute reports the number of packets transmitted by the RPD. RPD status should be 'Online' to get the actual output packets count.
docsRphyRpdDevNdrCfgTable	1.3.6.1.4.1.9.9.857.1.2		not-accessible	This table provides OOB NDR channel's status and configuration information, for example channel frequency, width, poweradjust, admin status etc. This table also allows to enable or disable the NDR channel's admin status.
docsRphyRpdDevNdrCfgEntry	1.3.6.1.4.1.9.9.857.1.2.1		not-accessible	Each entry contains status and configuration information for a single NDR Channel.
MAC docsRphyRpdDevNdrUniqueId	1.3.6.1.4.1.9.9.857.1.2.1.1	MacAddress	not-accessible	This key attribute specifies a globally unique 6-byte identifier for the RPD. By convention, an RPD SHOULD use the MAC address of the lowest numbered Ethernet port facing the CIN.
U32 docsRphyRpdDevNdrRfPort	1.3.6.1.4.1.9.9.857.1.2.1.2	Unsigned32	not-accessible	This key attribute reports the RPD RF port number
U32 docsRphyRpdDevNdrRfChannel	1.3.6.1.4.1.9.9.857.1.2.1.3	Unsigned32	not-accessible	This key attribute reports the NDR channel number.
T/F docsRphyRpdDevNdrEnable	1.3.6.1.4.1.9.9.857.1.2.1.4	TruthValue	read-write	This attribute indicates whether the NDR stream is enabled or disabled. Also, using this attribute NDR stream can be enabled or disabled.
IP docsRphyRpdDevNdrDstIPAddr	1.3.6.1.4.1.9.9.857.1.2.1.5	InetAddress	read-only	This attribute reports the IP address of the receiver of the NDR L2TP stream.
IP docsRphyRpdDevNdrSrcIPAddr	1.3.6.1.4.1.9.9.857.1.2.1.6	InetAddress	read-only	This attribute reports the IP address of the RPD transmitting the L2TP stream.
U32 docsRphyRpdDevNdrSessionId	1.3.6.1.4.1.9.9.857.1.2.1.7	Unsigned32	read-only	This attribute reports the L2TP session ID of the NDR stream.
U32 docsRphyRpdDevNdrFrequency	1.3.6.1.4.1.9.9.857.1.2.1.8	Unsigned32	read-only	This attribute reports the center frequency of the NDR channel.
U32 docsRphyRpdDevNdrBandwidth	1.3.6.1.4.1.9.9.857.1.2.1.9	Unsigned32	read-only	This attribute reports the bandwidth of the NDR channel.Channel widths supported for NDR are- Mode 0 : 80000Hz, Mode 1 : 160000Hz, Mode 2 : 320000Hz, Mode 3 : 640000Hz, Mode 4 : 1280000Hz, Mode 5 : 2560000Hz, Mode 6 : 5120000Hz.
U32 docsRphyRpdDevNdrMtuSize	1.3.6.1.4.1.9.9.857.1.2.1.10	Unsigned32	read-only	This attribute reports the Maximum Transmission Unit or maximum packet size for the L2TP stream.
U32 docsRphyRpdDevNdrPhb	1.3.6.1.4.1.9.9.857.1.2.1.11	Unsigned32	read-only	This attribute reports the DSCP QOS value configured for a L2TP packets. Default PHB is 0x0 means Best-Effort packet delivery.
I32 docsRphyRpdDevNdrPowerAdjust	1.3.6.1.4.1.9.9.857.1.2.1.12	Integer32	read-only	This attribute represents the desired target receive power level adjust for the selected NDR channel from the base target power reference level specified for the corresponding US RF port. The value represents power spectral density and is specified in units of TenthdB per 1.6 MHz of equivalent RF spectrum. The channel’s target receive power is computed by adding the value of this attribute to the value of base target power reference level for the corresponding RF port. This object specifies the commanded input power level for the NDR channel as specified in [R-OOB].
OCT docsRphyRpdDevNdrRpdStatus	1.3.6.1.4.1.9.9.857.1.2.1.13	OCTET STRING	read-only	This attribute reports the string describing the current status of the RPD i.e 'Online' or 'Offline'. For config modify to take effect, the RPD status shoud be 'Online'.
C64 docsRphyRpdDevNdrRpdInPktCount	1.3.6.1.4.1.9.9.857.1.2.1.14	Counter64	read-only	This attribute reports the number of packets received by the RPD on a given NDR stream. RPD status should be 'Online' to get the actual input packets count.
C64 docsRphyRpdDevNdrRpdOutPktCount	1.3.6.1.4.1.9.9.857.1.2.1.15	Counter64	read-only	This attribute reports the number of packets transmitted by the RPD. RPD status should be 'Online' to get the actual output packets count.
rphyNdfNdrMIBConform	1.3.6.1.4.1.9.9.857.2
rphyNdfNdrMIBCompliances	1.3.6.1.4.1.9.9.857.2.1
rphyNdfNdrMIBCompliance	1.3.6.1.4.1.9.9.857.2.1.1			This is a default module-compliance containing default object groups.
rphyNdfNdrMIBGroups	1.3.6.1.4.1.9.9.857.2.2
rphyNdfNdrMIBMainObjectGroup	1.3.6.1.4.1.9.9.857.2.2.1			The is a test group.
rphyNdfNdrMIBNotificationGroup	1.3.6.1.4.1.9.9.857.2.2.2			The is a test group.

RFC description

Manages narrowband digital forward and return channels for Cisco RPHY cable network architecture.

Start monitoring Cisco Remote PHY Device (RPD), DOCSIS Remote PHY node/fiber node (channel/session configuration) 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 RPHY-NDF-NDR-MIB