AVIAT-MODEM-MIB

All MIBs › AVIAT-MODEM-MIB

Organization: Aviat Networks

Last Updated: 2018--0-9-

Category: Vendor: Aviat

Description: Monitors Aviat microwave modem configuration and status including modulation scheme, FEC settings, and link capacity.

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What Is AVIAT-MODEM-MIB?

AVIAT-MODEM-MIB is an Aviat Networks enterprise module for managing the modem subsystem of Aviat microwave radio links, covering configuration parameters like modulation scheme, forward error correction (FEC) settings, and resulting link capacity. Its data is primarily configuration and derived capacity/performance information for the radio's modem component. From a monitoring standpoint it lets an operator confirm the modem is operating with the intended modulation and FEC configuration and track the resulting link capacity, since a modem falling back to a lower-order modulation (often an automatic adaptive-modulation response to fading) directly signals a degrading radio link condition. It is a vendor-specific module that would typically be used alongside other Aviat radio-link MIBs covering RF signal levels and alarms for a complete picture of link health. It is deployed on Aviat microwave backhaul radios used in telecom and utility point-to-point wireless links, with the AVIAT-MODEM-MIB MIB defining the modem-specific objects that management stations must load to interpret them.

IPNetwork Monitor allows you to monitor SNMP objects defined in AVIAT-MODEM-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

Aviat Networks microwave radios

Monitoring Examples

No sample object names were provided for this module, but based on its stated purpose an operator would poll the modem's configured modulation scheme and FEC setting and compare them against the reported link capacity to detect adaptive-modulation fallback during fades. A drop in modulation order combined with reduced capacity would indicate a deteriorating microwave link, often correlating with weather or path obstruction. This would typically be monitored alongside the radio's RF signal-level objects for full link diagnostics.

What Can Be Monitored

modem modulation scheme
forward error correction (FEC) setting
link capacity

Imported Objects

From AVIAT-TEXTCONVENTION-MIB

AviatModulationType

From ENTITY-MIB

entPhysicalIndex

OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

From STXN-GLOBALREGISTER-MIB

aviatModules

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using aviatModemModStatsTxSecs OID:

Select an Aviat Networks microwave radio link (point-to-point backhaul) 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 aviatModemModStatsTxSecs 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 is the number of seconds in which the radio was using the specified modulation to transmit. 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 Counter32-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
aviatModemModule	1.3.6.1.4.1.2509.9.3			This MIB module defines the Modem configuration objects for Aviat Networks radios.
aviatModemConformance	1.3.6.1.4.1.2509.9.3.1
aviatModemGroups	1.3.6.1.4.1.2509.9.3.1.1
aviatModemObjectGroup	1.3.6.1.4.1.2509.9.3.1.1.1			These are objects in the Aviat Modem management MIB.
aviatModemXpicGroup	1.3.6.1.4.1.2509.9.3.1.1.2			These are objects for configuring the cross polar interference cancellation (XPIC) functionality.
aviatModemModulationStatsGroup	1.3.6.1.4.1.2509.9.3.1.1.3			These are the objects in the modulation stats table introduced for WTM4000. They are not supported on all modems.
aviatModemModulationCurrentGroup	1.3.6.1.4.1.2509.9.3.1.1.4			These are the new 'current modulation' objects introduced for WTM4000. They are not supported on all modems.
aviatModemStatusGroup	1.3.6.1.4.1.2509.9.3.1.1.5			These are the new 'status' objects introduced for WTM4000. They are not supported on all modems.
aviatModemCompliance	1.3.6.1.4.1.2509.9.3.1.2
aviatModemComplV1	1.3.6.1.4.1.2509.9.3.1.2.1			The implementation requirements for this MIB.
aviatModemMIBObjects	1.3.6.1.4.1.2509.9.3.2
aviatModemTable	1.3.6.1.4.1.2509.9.3.2.1		not-accessible	A table containing the modem configuration objects for a particular entity of the system.
aviatModemEntry	1.3.6.1.4.1.2509.9.3.2.1.1		not-accessible	This is a row in the modem table.
G32 aviatModemBandwidth	1.3.6.1.4.1.2509.9.3.2.1.1.1	Gauge32	read-write	The modem channel bandwidth currently in use, in kilohertz.
INT aviatModemModulationType	1.3.6.1.4.1.2509.9.3.2.1.1.2	INTEGER	read-write	This allocates an ACM license for this radio link allowing modulation up to and including this modulation.
AVI aviatModemModulationBase	1.3.6.1.4.1.2509.9.3.2.1.1.3	AviatModulationType	read-write	This specifies the base modulation to use for modem. Together with aviatModemModulationMax this is used to define the range of modulations that can be active for ACM. The modem will configure the ACM operation to include the minimum and maximum modulations and an appropriate set of intermediate modulations between the minimum and maximum. Some combinations of min and max modulations may not be supported in which case an INCONSISTENT_VALUE error will be reported.
AVI aviatModemModulationMax	1.3.6.1.4.1.2509.9.3.2.1.1.4	AviatModulationType	read-write	This specifies the maximum modulation to use for ACM. See the aviatModemModulationBase description for details. Setting Max without setting Acm mode to the appropriate ACM mode will cause this command to fail (i.e. 1024qam requires acm1024).
AVI aviatModemLicensedModulationMask	1.3.6.1.4.1.2509.9.3.2.1.1.5	AviatModulationType	read-write	When configured for adaptive modulation, this specifies the licensed RF mask. Tx power output will be controlled to maintain compliance with the operator's licensed RF mask according to the active modulation.
INT aviatModemRegulatoryStandard	1.3.6.1.4.1.2509.9.3.2.1.1.6	INTEGER	read-write	This specifies the regulatory standard to use.
I32 aviatModemProfileVersion	1.3.6.1.4.1.2509.9.3.2.1.1.7	Integer32	read-write	This sets the profile version to use. If a new profile comes out with the same characteristics to a previous one but not over air compatible, the new one will have a different version.
I32 aviatModemCapacity	1.3.6.1.4.1.2509.9.3.2.1.1.8	Integer32	read-write	This specifies the capacity to license for this interface. Set to 0 to unlicense.
INT aviatModemL1laLiteEnabled	1.3.6.1.4.1.2509.9.3.2.1.1.9	INTEGER	read-write	Enabled L1laLite for this interface and it's partner
INT aviatModemMLHCEnabled	1.3.6.1.4.1.2509.9.3.2.1.1.10	INTEGER	read-write	Enable multilayer header compression for this radio interface.
AVI aviatModemCurCapacityTx	1.3.6.1.4.1.2509.9.3.2.1.1.11	AviatModemCapacityType	read-only	Current capacity in the transmit direction.
AVI aviatModemCurCapacityRx	1.3.6.1.4.1.2509.9.3.2.1.1.12	AviatModemCapacityType	read-only	Current capacity in the receive direction.
AVI aviatModemCurModulationTx	1.3.6.1.4.1.2509.9.3.2.1.1.13	AviatModulationType	read-only	Current modulation used to transmit.
AVI aviatModemCurModulationRx	1.3.6.1.4.1.2509.9.3.2.1.1.14	AviatModulationType	read-only	Current modulation used to receive.
aviatModemModulationTable	1.3.6.1.4.1.2509.9.3.2.2		not-accessible	This is a table containing the list of modem modulations configured for use with adaptive modulation. This list is based on the settings of aviatModemModulationBase and aviatModemModulationMax, and a set of automatically selected intermediate modulations. If configured for static modulation, this list will contain only one entry, the configured static modulation.
aviatModemModulationEntry	1.3.6.1.4.1.2509.9.3.2.2.1		not-accessible	A single modulation entry for an entity.
G32 aviatModemModulationIndex	1.3.6.1.4.1.2509.9.3.2.2.1.1	Gauge32	not-accessible	An index representing a particular modulation entry for an entity.
AVI aviatModemModulation	1.3.6.1.4.1.2509.9.3.2.2.1.2	AviatModulationType	read-only	A configured modem modulation of the system.
aviatModemXpicTable	1.3.6.1.4.1.2509.9.3.2.3		not-accessible	A table containing configuration objects for the cross polarisation interference cancellation (XPIC) functionality for a particular entity of the system.
aviatModemXpicEntry	1.3.6.1.4.1.2509.9.3.2.3.1		not-accessible	This is a row in the modem XPIC table.
T/F aviatModemXpicEnable	1.3.6.1.4.1.2509.9.3.2.3.1.1	TruthValue	read-write	This specifies whether the cross polarisation interference cancellation (XPIC) function is enabled.
aviatModemStatusTable	1.3.6.1.4.1.2509.9.3.2.4		not-accessible	A table containing read only information about the modem.
aviatModemStatusEntry	1.3.6.1.4.1.2509.9.3.2.4.1		not-accessible	This is a row in the modem status table.
I32 aviatModemStatusMaxCapacity	1.3.6.1.4.1.2509.9.3.2.4.1.1	Integer32	read-only	This is the maximum radio link capacity.
INT aviatModemStatusOper	1.3.6.1.4.1.2509.9.3.2.4.1.2	INTEGER	read-only	Operational status of radio link. Based off ifOperStatus
aviatModemModulationStatsTable	1.3.6.1.4.1.2509.9.3.2.5		not-accessible	This is a table containing information about the amount of time the radio spends at each modulation level. Counters are cumulative. No means to reset counters is provided within this MIB module. If the radio has never used a particular modulation since statistics were reset, then a row for that modulation may or may not be present in this table.
aviatModemModulationStatsEntry	1.3.6.1.4.1.2509.9.3.2.5.1		not-accessible	This is an entry in the table containing modulation time counters for a particular entity at a particular modulation level.
AVI aviatModemModStatsModulation	1.3.6.1.4.1.2509.9.3.2.5.1.1	AviatModulationType	not-accessible	This is the modulation type to which the data in this is row refers.
C32 aviatModemModStatsTxSecsEx	1.3.6.1.4.1.2509.9.3.2.5.1.2	Counter32	read-only	This is the number of seconds in which the radio was using the specified modulation to transmit.
G32 aviatModemModStatsTxPct	1.3.6.1.4.1.2509.9.3.2.5.1.4	Gauge32	read-only	This is the fraction of the total time in which the radio was receiving, where the radio was receiving in the specified modulation, multiplied by 1000000 (10^7) and rounded in an unspecified manner.
C32 aviatModemModStatsRxSecs	1.3.6.1.4.1.2509.9.3.2.5.1.5	Counter32	read-only	This is the number of seconds in which the radio was using the specified modulation to receive.
G32 aviatModemModStatsRxPct	1.3.6.1.4.1.2509.9.3.2.5.1.6	Gauge32	read-only	This is the fraction of the total time in which the radio was transmitting, where the radio was transmitting at the specified modulation, multiplied by 1000000 (10^7) and rounded in an unspecified manner.

RFC description

Vendor-specific MIB for modem configuration management in Aviat Networks point-to-point wireless radio systems.

Start monitoring Aviat Networks microwave radio links (point-to-point backhaul) 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.

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