RDN-DLB-MIB

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Organization: Motorola

Last Updated: 2008-08-08

Category: DOCSIS and Cable

Description: Manages Dynamic Load Balancing (DLB) configuration and cable modem migration policy on Motorola BSR CMTS platforms.

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What Is RDN-DLB-MIB?

RDN-DLB-MIB is a Motorola (Arris/CommScope) MIB for the Dynamic Load Balancing (DLB) feature on BSR (Broadband Services Router) CMTS platforms, used to configure and manage cable modem migration policy across upstream/downstream channels. It exposes configuration data controlling how the CMTS automatically redistributes cable modems between channels to balance load, along with the resulting migration/rebalancing behavior. This MIB is used to monitor the operational effect of load-balancing policy on the DOCSIS access network, letting an operator confirm that modems are being redistributed as configured and detect a misconfigured or malfunctioning DLB policy causing channel overload or excessive modem migration churn. It is a Motorola/Arris-specific extension layered on top of the standard DOCSIS/CMTS MIBs that define channels and cable modem inventory. It is typically deployed in cable operator head-ends where Motorola BSR CMTS equipment manages a DOCSIS HFC access network. Engineers can download the RDN-DLB-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RDN-DLB-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

Motorola/Arris BSR CMTS

Monitoring Examples

No object or table names were provided for this module, so a concrete polling scenario cannot be grounded in real identifiers; generally an operator would poll DLB policy and migration-trigger objects to confirm cable modems are being dynamically reassigned to underutilized channels as intended, and would investigate if migration activity stalls or an upstream channel remains persistently overloaded.

Imported Objects

From RDN-MIB

riverdelta

MODULE-IDENTITY

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
rdnLoadBalance	1.3.6.1.4.1.4981.8			Mib module for Motorola Dynamic Load Balancing. Copyright (C) 2004, 2008 by Motorola, Inc. All rights reserved.
rdnLoadBalBasicRuleTable	1.3.6.1.4.1.4981.8.1		not-accessible	Load Balance Basic Rule Table.
rdnLoadBalBasicRuleEntry	1.3.6.1.4.1.4981.8.1.1		not-accessible	Load Balance Basic Rule Table entry.
U32 rdnLoadBalBasicRuleId	1.3.6.1.4.1.4981.8.1.1.1	Unsigned32	not-accessible	An index uniquely identifying an entry in the rdnLoadBalBasicRuleTable.
INT rdnLoadBalBasicRuleEnable	1.3.6.1.4.1.4981.8.1.1.2	INTEGER	read-create	When using this rule set, the load balancing algorithm is based on upstream and downstream utilization by the values upstream(1) and downstream(2) respectively. Additionally, a Load Balancing groups interval can be defined by value interval(3). Upstream Load Balancing during modem registration can be enabled by value registration(4). Load Balancing after a resource failure due to a DSX from a CPE can be enabled by value rem-dsx(5). Load balancing triggered by a Spectrum Management bit rate change can be enabled by value spec-trig(6). Downstream Load Balancing during modem registration can be enabled by value ds-reg(7). Upstream Load Balancing with Bonding Groups during modem registration can be enabled by value us-reg-bonding(8). Downstream Load Balancing with Bonding Groups during modem registration can be enabled by value ds-reg-bonding(9). The load balancing utilization thresholds are defined by the objects rdnLoadBalBasicRuleMinThres, rdnLoadBalBasicRuleDeltaThres and rdnLoadBalBasicRuleStopThres objects if this object value is set to upstream(1) or downstream(2). The modem count threshold is defined by the object rdnLoadBalBasicRuleModemCountThres if this object value is set to registration(4), ds-reg(7), us-reg-bonding(8), or ds-reg-bonding(9).
U32 rdnLoadBalBasicRuleMinThres	1.3.6.1.4.1.4981.8.1.1.3	Unsigned32	read-create	If object rdnLoadBalBasicRuleEnable is upstream(1) or downstream(2), the minimum percentage of utilization that a channel must have to start load balancing is defined by this value. Otherwise, this object has no meaning.
U32 rdnLoadBalBasicRuleDeltaThres	1.3.6.1.4.1.4981.8.1.1.4	Unsigned32	read-create	If object rdnLoadBalBasicRuleEnable is upstream(1) or downstream(2), the delta percentage of utilization between two load balancing group channels that must exist to start load balancing is defined by this value. Otherwise, this object has no meaning.
U32 rdnLoadBalBasicRuleStopThres	1.3.6.1.4.1.4981.8.1.1.5	Unsigned32	read-create	If object rdnLoadBalBasicRuleEnable is upstream(1) or downstream(2), the delta percentage of utilization between two load balancing group channels that should be met to stop load balancing is defined by this value. Otherwise, this object has no meaning.
ROW rdnLoadBalBasicRuleRowStatus	1.3.6.1.4.1.4981.8.1.1.7	RowStatus	read-create	This object is to create or delete rows in this table. There is no restriction for changing this row status or object's values in this table at any time.
U32 rdnLoadBalBasicRuleModemCountThres	1.3.6.1.4.1.4981.8.1.1.8	Unsigned32	read-create	If object rdnLoadBalBasicRuleEnable is registration(4), the modem count threshold represents the maximum allowed difference in modem count between the modem's initial upstream channel and the least loaded upstream channel in the load balance group. If the threshold is exceeded the modem is moved to the least loaded upstream channel otherwise the modem remains on its initial upstream channel.
rdnLoadBalOperations	1.3.6.1.4.1.4981.8.2			Available Load Balance Operations
U32 rdnLoadBalanceUpstreamModemCount	1.3.6.1.4.1.4981.8.2.1	Unsigned32	read-write	Perform upstream load-balancing based on modem count. 0 = Perform on all enabled Load-Balance Groups. [1-255] = Perform on a specific Load-Balance Group based on group ID. Reading this object always returns zero.
U32 rdnLoadBalanceDnstreamModemCount	1.3.6.1.4.1.4981.8.2.2	Unsigned32	read-write	Perform downstream load-balancing based on modem count. 0 = Perform on all enabled Load-Balance Groups. [1-255] = Perform on a specific Load-Balance Group based on group ID. Reading this object always returns zero.
U32 rdnLoadBalGroupInterval	1.3.6.1.4.1.4981.8.3	Unsigned32	read-create	The period at which load balancing process will be initiated for any load balancing group in the system.

RFC description

Dynamic Load Balancing (DLB) rules and policies for Motorola BSR systems managing traffic distribution across slots.

Start monitoring Motorola/Arris BSR CMTS (Dynamic Load Balancing / cable-modem channel migration policy) 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 RDN-DLB-MIB

What Is RDN-DLB-MIB?

Supported Devices

Monitoring Examples

This MIB depends on

Related MIBs

RFC description