CISCO-CABLE-IRON-BUS-STAT-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2014-08-14

Category: DOCSIS and Cable

Description: Monitors iron bus statistics for internal chassis communication on Cisco CMTS platforms.

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What Is CISCO-CABLE-IRON-BUS-STAT-MIB?

CISCO-CABLE-IRON-BUS-STAT-MIB is a Cisco Systems proprietary MIB reporting Iron Bus bandwidth utilization statistics on DOCSIS-compliant Cable Modem Termination System (CMTS) platforms — the Iron Bus being an internal high-speed backplane interconnect. Its statistics table, keyed by index, records fabric-inbound-bus (FIB) and transmit-inbound-bus (TIB) configured bandwidth, current and default message interval/bandwidth, FIB packets/bytes received, TIB packets/bytes sent, and per-second packet rates for both directions. As a performance MIB it lets a cable operator watch Iron Bus throughput against its configured bandwidth threshold to catch internal backplane congestion before it affects subscriber traffic. It is deployed on Cisco DOCSIS CMTS platforms. Engineers can download the CISCO-CABLE-IRON-BUS-STAT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-CABLE-IRON-BUS-STAT-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 DOCSIS Cable Modem Termination System (CMTS) platforms

Monitoring Examples

A cable operator monitors ciscoCableIronBusStatFibPktsPerSec against ciscoCableIronBusStatFibBandwidth to catch the internal Iron Bus backplane approaching saturation on a Cisco CMTS.

What Can Be Monitored

Iron Bus (internal backplane) bandwidth utilization

Imported Objects

From CISCO-CABLE-ADMISSION-CTRL-MIB

NonZeroPercent

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using ciscoCableIronBusStatFibPktsRcv OID:

Select a Cisco CMTS (Cable Modem Termination System) platform 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 ciscoCableIronBusStatFibPktsRcv 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 object specifies the Fib received packets per second. 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
ciscoCableIronBusStatMIB	1.3.6.1.4.1.9.9.821			This is the MIB module for Cable Iron Bus Statistics for DOCSIS-compliant Cable Modem Termination Systems (CMTS). The Statistics of Iron Bus is a software/hardware feature provided in the CMTS so that the CMTS can count statistics of bandwidth usage of Iron Bus when traffic through it. The purpose of cable Iron Bus statistics is to monitor the bandwidth usage of Iron Bus , which CMTS can report warning message when the traffic throughput on Iron Bus overlap the threshold configured. The statistics of Iron Bus also monitor the traffic throughput statistics both ingress and outband Iron Bus with units bytes and packets per second. The statistics of Iron Bus can also configure the threshold and message interval to CMTS.
ciscoCableIronBusStatMIBNotifs	1.3.6.1.4.1.9.9.821.0
ciscoCableIronBusStatMIBObjects	1.3.6.1.4.1.9.9.821.1
ciscoCableIronBusStatTable	1.3.6.1.4.1.9.9.821.1.1		not-accessible	This table abstracts a sparse matrix of Bandwidth resource utilization thresholds to be monitored by Iron Bus Statistics. The ciscoCableIronBusStatIndex uniquely identifies the physical entity with a set of Iron Bus bandwidth resource utilization thresholds being associated.The physical entities is for Jacket Card slot Number.The agent creates/destroys/modifies an entry whenever the local console affects this configuration.The management application may create/destroy/modify an entry. This entry will exist by default since the Iron Bus Statistics has 90% and 2 minutes configuration by default.
ciscoCableIronBusStatEntry	1.3.6.1.4.1.9.9.821.1.1.1		not-accessible	An entry (conceptual row) in the cableIronBusStatTable.
I32 ciscoCableIronBusStatIndex	1.3.6.1.4.1.9.9.821.1.1.1.1	Integer32	not-accessible	This object defines the index of this entry , which should be the slot number of SIP card in CMTS, only support 1,3 currently.
NON ciscoCableIronBusStatFibBandwidth	1.3.6.1.4.1.9.9.821.1.1.1.2	NonZeroPercent	read-only	This object specifies Iron Bus Fib bandwidth(From Iron Bus) thresholds currently in CMTS being monitored.
NON ciscoCableIronBusStatTibBandwidth	1.3.6.1.4.1.9.9.821.1.1.1.3	NonZeroPercent	read-only	This object specifies Iron Bus Tib bandwidth(To Iron Bus) thresholds currently in CMTS being monitored.
I32 ciscoCableIronBusStatMessageIntervalCurrent	1.3.6.1.4.1.9.9.821.1.1.1.4	Integer32	read-write	This object specifies Iron Bus warning message interval currently in CMTS being monitored. which from 0 to 60 minutes. Setting the object to 2 will remove the configuration. Setting the object to 0 will not log any warning message.
NON ciscoCableIronBusStatBandwidthCurrent	1.3.6.1.4.1.9.9.821.1.1.1.5	NonZeroPercent	read-write	This object specifies Iron Bus bandwidth usage thresholds currently in CMTS being monitored. The following values range from 50 to 100. Setting the object to 90 is remove the configuration and set it to default configuration.
I32 ciscoCableIronBusStatMessageIntervalDefault	1.3.6.1.4.1.9.9.821.1.1.1.6	Integer32	read-only	This object specifies Iron Bus warning message interval by default. The default value of this object is 2.
NON ciscoCableIronBusStatBandwidthDefault	1.3.6.1.4.1.9.9.821.1.1.1.7	NonZeroPercent	read-only	This object specifies the default Iron Bus bandwidth usage thresholds in CMTS being monitored. The default value is 90.
C64 ciscoCableIronBusStatFibPktsRcvEx	1.3.6.1.4.1.9.9.821.1.1.1.8	Counter64	read-only	This object specifies the Fib received packets per second.
C64 ciscoCableIronBusStatFibBytesRcv	1.3.6.1.4.1.9.9.821.1.1.1.9	Counter64	read-only	This object specifies the Fib received bytes per second.
C64 ciscoCableIronBusStatTibPktsSent	1.3.6.1.4.1.9.9.821.1.1.1.10	Counter64	read-only	This object specifies the Fib sent packets per second.
C64 ciscoCableIronBusStatTibByteSent	1.3.6.1.4.1.9.9.821.1.1.1.11	Counter64	read-only	This object specifies the Fib sent Bytes per second.
C64 ciscoCableIronBusStatFibPktsPerSec	1.3.6.1.4.1.9.9.821.1.1.1.12	Counter64	read-only	This object specifies the Fib throughput Bytes per second.
C64 ciscoCableIronBusStatTibPktPerSec	1.3.6.1.4.1.9.9.821.1.1.1.13	Counter64	read-only	This object specifies the Tib throughput Bytes per second.
ciscoCableIronBusStatMIBConform	1.3.6.1.4.1.9.9.821.2
ciscoCableIronBusStatMIBCompliances	1.3.6.1.4.1.9.9.821.2.1
ciscoCableIronBusStatMIBCompliance	1.3.6.1.4.1.9.9.821.2.1.1			The compliance statement for entities which implement the Cisco Cable Iron Bus Statistics MIB
ciscoCableIronBusStatMIBGroups	1.3.6.1.4.1.9.9.821.2.2
ciscoCableIronBusStatObjectGroup	1.3.6.1.4.1.9.9.821.2.2.1			A collection of objects providing CMTS Iron Bus Statistics being monitored.

RFC description

Cisco vendor-private MIB for monitoring Iron Bus statistics and performance on cable modem platforms.

Start monitoring Cisco CMTS (Cable Modem Termination System) platforms 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 CISCO-CABLE-IRON-BUS-STAT-MIB