CADANT-CMTS-POLICY-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCADANT-CMTS-POLICY-MIB

Organization: Arris International, Inc.

Last Updated: 2014-03-26

Category: DOCSIS and Cable, Quality of Service, Vendor: ARRIS

Description: Manages service flow policy rules and QoS policy enforcement for cable modem subscribers on ARRIS/Cadant CMTS platforms.

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What Is CADANT-CMTS-POLICY-MIB?

CADANT-CMTS-POLICY-MIB is an ARRIS/Cadant enterprise MIB that manages access-control and routing-policy configuration on the C4 Cable Modem Termination System used in DOCSIS cable broadband networks. It exposes objects for standard access-control lists applied to interfaces, distribute-list route filtering by protocol, and policy-based routing controls. As a configuration/policy MIB it is used mainly to verify the software state of the CMTS's traffic-filtering and routing-policy engine, confirming that ACL rules, distribute lists, and policy routes are active and correctly applied, which indirectly affects service continuity for subscriber traffic. It layers vendor-specific policy extensions on top of standard IP forwarding and routing MIBs. It's typically used by cable MSO network engineers managing edge security and routing policy on Cadant/ARRIS C4 CMTS chassis in head-end facilities. Engineers can download the CADANT-CMTS-POLICY-MIB file directly to load it into their MIB browser.

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

Monitoring Examples

An engineer inspects cadScmAccessTable rows (cadScmAccIfIndex, cadScmAccListNumber, cadScmAccRowStatus) to confirm an ACL is bound and active on a given cable interface. Checking cadDistListInTable fields like cadDistListInProtocol, cadDistListInProtocolProcess, and cadDistListInAccessListNum verifies that inbound route filtering for a routing protocol process uses the intended access list. If cadAclControl or cadPolicyRouting settings drift from the documented baseline, unexpected traffic may bypass filtering or routes may be misapplied, so polling these tables is a quick way to audit policy compliance.

What Can Be Monitored

  • ACL binding per interface
  • ACL row status/activation
  • distribute-list route filtering
  • policy routing state
  • access-list numbering per protocol
Imported Objects

From CADANT-PRODUCTS-MIB

cadPolicyOBJECT-IDENTITY

From CADANT-TC

CadAclString
CadAclType
CadExtAclCondition
CadIfDirection
CadIpTos
CadIpTosMask
CadProtocolType
CadTcpFlags
InetAddressIPv4or6

From DC-RTM-MIB

InfoSourceDest

From IF-MIB

InterfaceIndex

From INET-ADDRESS-MIB

InetAddress
InetAddressType

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

Counter32
Counter64
Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

MacAddress
RowStatus
TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using cadPolicyRateLimitConformPackets OID:

Select an ARRIS/Cadant CMTS device 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 cadPolicyRateLimitConformPackets 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 number of packets conforming to the policy rate. 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

RFC description

Arris Cadant C4 CMTS policy MIB for managing policy parameters, access lists, and route map configurations.

Start monitoring ARRIS/Cadant CMTS devices 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 CADANT-CMTS-POLICY-MIB