SIAE-HITLESS-AGGRL1-MIB

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Organization: SIAE MICROELETTRONICA spa

Last Updated: 2016-02-29

Category: Microwave Radio - SIAE MICROELETTRONICA

Description: Manages SIAE MICROELETTRONICA hitless aggregation layer-1 switching for zero-interruption protection.

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What Is SIAE-HITLESS-AGGRL1-MIB?

SIAE-HITLESS-AGGRL1-MIB is a proprietary MIB module from SIAE Microelettronica, an Italian manufacturer of microwave radio transmission equipment, and it extends that vendor's radio link aggregation group (RLAG) framework. It exposes configuration and status data for Level 1 hitless aggregation, a mechanism that pre-emptively removes a degrading radio link from an Ethernet aggregation bundle before it causes packet loss. Because the removal decision is driven by the link's adaptive coding and modulation (ACM) profile, the MIB is fundamentally a software/algorithm-status MIB used to monitor radio link health and the operational state of the hitless-switching estimator rather than classic hardware sensors. It builds on SIAE's own aggregation MIB structure and assumes an underlying RLAG/ACM implementation already present on the radio. It is deployed on SIAE microwave radio links carrying Ethernet traffic in backhaul and point-to-point transmission networks where seamless failover during fading events is required. Engineers can download the SIAE-HITLESS-AGGRL1-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SIAE-HITLESS-AGGRL1-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

SIAE Microelettronica microwave radio
point-to-point radio backhaul link

Monitoring Examples

An operator would poll the per-link ACM profile threshold and current TX profile to see how close a radio link is to the configurable degradation boundary that triggers removal from the RLAG bundle. A sudden shift of the active profile below the configured threshold, followed by the link status estimator flagging removal, indicates fading or interference on that hop before any user traffic is actually dropped. Because sample_objects were not available for this module, the specific table and object names cannot be confirmed beyond the described profile/estimator behavior in the module description.

What Can Be Monitored

radio link ACM/TX profile
hitless aggregation removal status
link degradation estimator state
RLAG membership of Ethernet links

Imported Objects

From SIAE-AGGRL1-MANAGEMENT-MIB

aggrL1Entry

OBJECT-TYPE

From SIAE-RADIO-SYSTEM-MIB

linkSettingsEntry	OBJECT-TYPE
linkStatusEntry	OBJECT-TYPE

From SIAE-TREE-MIB

siaeMib

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

OIDs

OID symbolic	OID numeric	Type	Access	Description
hitlessAggregationL1	1.3.6.1.4.1.3373.1103.98			This module contains the hitless extension for a Level 1 aggregations of SIAE equipments. The Hitless L1 aggregation is a method to define radio link degradation in order to remove it from aggregation in advance (link status estimator). Only ethernet traffic is affected. The current TX profile of a link is used as extimator of the link status. When ACM modulation goes under a predefined profile (configurable by operator) the corresponding link is removed from RLAG. A radio link is considered unavailable for ethernet traffic during all the time that the current modulation remain under the predefined HITLESS profile (modulation). Every radio link is considered working in three separate ZONEs - GOOD ZONE: When it is working between the HITLESS profile (included) and the UPPER profile (included) - HITLESS ZONE: When it is working between the LOWER profile (included) and the HITLESS profile (excluded) - BAD ZONE: When the modem is unlocked NE is in charge to select which of the links, that are working into the HITLESS ZONE, participate in RLAG. The decision is taken according to three possible behaviors: - ALL survive: All links remain used by aggregator when working into the HITLESS ZONE - ONE survive: When NO link is working into the GOOD ZONE, the last link entered into the HITLESS ZONE continues to be used by the aggregator - NONE survive: Each link is removed from aggregation when working into the HITLESS ZONE Note that when HITLESS profile is configured equal to the LOWER profile, the ONE survive and NONE survive behave like the ALL survive.
INT hlAggrL1MibVersion	1.3.6.1.4.1.3373.1103.98.1	INTEGER	read-only	Numerical version of this module. The string version of this MIB have the following format: XX.YY.ZZ so, for example, the value 1 should be interpreted as 00.00.01 and the value 10001 should be interpreted as 01.00.01.
hlAggrL1Table	1.3.6.1.4.1.3373.1103.98.2		not-accessible	A list of hitless L1 aggregation (RLAG) entries.
hlAggrL1Entry	1.3.6.1.4.1.3373.1103.98.2.1		not-accessible	An entry containing management information applicable to the hitless extension for L1 aggregation.
INT hlAggrL1Mode	1.3.6.1.4.1.3373.1103.98.2.1.1	INTEGER	read-write	This object defines how the HITLESS profiles is choosen (HITLESS profile is last profile that is considered good for L1 agrregation): hlAggrL1Auto(1): NE uses linkTxLowerProfile+1 as HITLESS profile hlAggrL1Manual(2): NE uses the values set in hlLinkSettingsTable as HITLESS profile
INT hlAggrL1Behaviour	1.3.6.1.4.1.3373.1103.98.2.1.2	INTEGER	read-write	Every radio link is considered working in three separate ZONEs: GOOD ZONE: When it is working between the HITLESS profile (included) and the UPPER profile (included) HITLESS ZONE: When it is working between the LOWER profile (included) and the HITLESS profile (excluded) BAD ZONE: When the modem is unlocked HITLESS profile (one for each radio link) is last profile that is considered good for L1 aggregation. NE is in charge to select which of the links that are working into the HITLESS ZONE participate in L1 aggregation. The decision is taken according to three possible behaviors: hlAggrL1AllSurvive(1): All links remain used by aggregator when working into the HITLESS ZONE. hlAggrL1OneSurvive(2): When NO link is working into the GOOD ZONE, the last link entered into the HITLESS ZONE continues to be used by the aggregator hlAggrL1NoneSurvive(3): Each link is removed from aggregation when working into the HITLESS ZONE
hlLinkSettingsTable	1.3.6.1.4.1.3373.1103.98.3		not-accessible	Table with the hitless L1 aggregation extension of linkSettingsEntry. The content of this table can be changed by a manager if linkRowStatus is notInService(2).
hlLinkSettingsEntry	1.3.6.1.4.1.3373.1103.98.3.1		not-accessible	An entry containing the hitless L1 aggregation extension of linkSettingsEntry. .
I32 linkHitlessProfile	1.3.6.1.4.1.3373.1103.98.3.1.1	Integer32	read-create	The object contains hitless profile that is used to remove the radio link from the L1 aggregation.
hlLinkStatusTable	1.3.6.1.4.1.3373.1103.98.4		not-accessible	Table with hitless L1 aggregation extension of linkStatusEntry.
hlLinkStatusEntry	1.3.6.1.4.1.3373.1103.98.4.1		not-accessible	An entry containing the hitless L1 aggregation extension of linkStatusEntry.
INT linkHitlessZone	1.3.6.1.4.1.3373.1103.98.4.1.1	INTEGER	read-only	The object shows the working zone of an aggregated radio link.

RFC description

Manages hitless L1 radio link aggregation with quality-based link removal/retention in SIAE microwave radio systems.

Start monitoring SIAE Microelettronica microwave radio, point-to-point radio backhaul link (hitless aggregation status) 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 SIAE-HITLESS-AGGRL1-MIB

What Is SIAE-HITLESS-AGGRL1-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description