TIARA-V35-MIB

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Organization: Tiara Networks Inc.

Last Updated: 2000-08-18

Category: PPP and WAN Protocols, WAN and Serial Interfaces

Description: Manages Tiara Networks WAN router V.35 serial interface configuration and status.

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What Is TIARA-V35-MIB?

TIARA-V35-MIB is a vendor-specific SNMP module for Tiara Networks WAN routers covering V.35 serial interface modules, a common physical-layer standard for connecting routers to CSU/DSUs or other WAN termination equipment. It exposes per-interface configuration (clock rate, clock source, operating mode, CRC setting, data mode, flow control) alongside a statistics table reporting alarm status, plus trap definitions for the interface. Its monitoring relevance is interface hardware/link health: v35StatsAlarmStatus reports whether a given V.35 port is currently in an alarm condition (such as loss of carrier or clock), letting an operator detect physical-layer WAN link failures, while the configuration table lets them confirm clocking and flow-control settings match what the connected DTE/DCE equipment expects. It complements standard IF-MIB interface counters by adding V.35-specific physical-layer detail, implying a loose dependency on the interfaces group for ifIndex correlation. It is deployed on Tiara routers with V.35 WAN ports, monitored via polling of alarm status and via subscription to v35Traps for real-time link-state notification. Network engineers evaluating or troubleshooting this functionality can download the TIARA-V35-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in TIARA-V35-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

Tiara Networks WAN router with V.35 serial interface module

Monitoring Examples

An operator would poll v35StatsTable's v35StatsAlarmStatus (indexed by v35IfIndex) to detect whether a V.35 serial link has entered an alarm state such as loss of clock or carrier. v35ConfigClockSource and v35ConfigClockRate would be checked against the expected DCE/DTE clocking arrangement if a link is flapping, since a clock-source mismatch is a common cause of V.35 instability. A v35Traps notification with populated v35TrapVariables would alert the NMS the moment the alarm status changes, avoiding the need for continuous polling.

What Can Be Monitored

V.35 interface alarm status
clock rate and clock source configuration
CRC and data mode configuration
flow control setting
V.35 interface trap notifications

Imported Objects

From RFC-1215

TRAP-TYPE

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From TIARA-NETWORKS-SMI

tiaraInterfaces

OBJECT-IDENTITY

How to Use in IPNetwork Monitor

Example using v35StatsFramesIn OID:

Select a Tiara Networks WAN router with V.35 serial interface module (clocking/alarm status) 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 v35StatsFramesIn 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. Specifies the number of incoming frames. 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
tiaraV35Mib	1.3.6.1.4.1.3174.2.7.3			MIB definitions for Tiara V35 module.
v35ConfigTable	1.3.6.1.4.1.3174.2.7.3.1		not-accessible	Tiara Networks V35 interface-related configurable parameters are listed in this table.
v35ConfigTableEntry	1.3.6.1.4.1.3174.2.7.3.1.1		not-accessible	V35 table entry.
INT v35IfIndex	1.3.6.1.4.1.3174.2.7.3.1.1.1	INTEGER	not-accessible	An integer value that is an index in the entries of the ifTable (MIB-II) with a V.35 interface type.
I32 v35ConfigClockRate	1.3.6.1.4.1.3174.2.7.3.1.1.2	Integer32	read-write	Configures the clock rate for V35.
INT v35ConfigClockSource	1.3.6.1.4.1.3174.2.7.3.1.1.3	INTEGER	read-write	Configures the clock source for V35. It can be either internal or line.
INT v35ConfigMode	1.3.6.1.4.1.3174.2.7.3.1.1.4	INTEGER	read-write	Configures the mode for V35 to be either dce or dte.
INT v35ConfigCRC	1.3.6.1.4.1.3174.2.7.3.1.1.5	INTEGER	read-write	Configures the cyclic redundancy check for V35 to be either 16 or 32 bits.
INT v35ConfigDataMode	1.3.6.1.4.1.3174.2.7.3.1.1.6	INTEGER	read-write	Configures the data for V.35 to be either normal or inverted.
INT v35ConfigFlowControl	1.3.6.1.4.1.3174.2.7.3.1.1.7	INTEGER	read-write	Configures the hardware flow control for V.35 to be either on or off.
v35StatsTable	1.3.6.1.4.1.3174.2.7.3.2		not-accessible	Tiara Networks V35 interface-related status variables are listed in this table.
v35StatsTableEntry	1.3.6.1.4.1.3174.2.7.3.2.1		not-accessible	V35 statistics table entry.
BIT v35StatsAlarmStatus	1.3.6.1.4.1.3174.2.7.3.2.1.1	Bits	read-only	Specifies the status of the V35 alarm. If the bit is set, it indicates that the alarm state is on. Alarm bits are mode dependent; they are interpreted as follows: v35-alarms-DTR - DTR not received from DTE (V.35 is DCE) v35-alarms-DSR - DSR not received from DCE (V.35 is DTE) v35-alarms-ST - V.35 adaptor driving ST (V.35 is DCE) v35-alarms-CTS - CTS not received from DCE (V.35 is DTE) v35-alarms-RTS - RTS not received from DTE (V.35 is DCE)
C32 v35StatsFramesInEx	1.3.6.1.4.1.3174.2.7.3.2.1.2	Counter32	read-only	Specifies the number of incoming frames.
C32 v35StatsFramesOut	1.3.6.1.4.1.3174.2.7.3.2.1.3	Counter32	read-only	Specifies the number of outgoing frames.
C32 v35StatsOctetsIn	1.3.6.1.4.1.3174.2.7.3.2.1.4	Counter32	read-only	Specifies the number of incoming octets.
C32 v35StatsOctetsOut	1.3.6.1.4.1.3174.2.7.3.2.1.5	Counter32	read-only	Specifies the number of outgoing octets.
C32 v35StatsCRCErrors	1.3.6.1.4.1.3174.2.7.3.2.1.6	Counter32	read-only	Specifies the number of CRC errors that have been identified so far.
v35Traps	1.3.6.1.4.1.3174.2.7.3.3
NTF v35AlarmOnTrap	1.3.6.1.4.1.3174.2.7.3.3.0.1			V35 alarm traps for the Alarm On state.
NTF v35AlarmOffTrap	1.3.6.1.4.1.3174.2.7.3.3.0.2			V35 alarm traps for the Alarm Off state.
v35TrapVariables	1.3.6.1.4.1.3174.2.7.3.3.1
INT v35SlotNumber	1.3.6.1.4.1.3174.2.7.3.3.1.1	INTEGER	not-accessible	This V35 trap variable specifies the slot number of the V35 interface.
INT v35AlarmType	1.3.6.1.4.1.3174.2.7.3.3.1.2	INTEGER	not-accessible	This V35 alarm type specifies the type of the alarm trap generated by the agent for the V35 interface. Alarm bits are mode dependent; they are interpreted as follows: v35-alarms-DTR - DTR not received from DTE (V.35 is DCE) v35-alarms-DSR - DSR not received from DCE (V.35 is DTE) v35-alarms-ST - V.35 adaptor driving ST (V.35 is DCE) v35-alarms-CTS - CTS not received from DCE (V.35 is DTE) v35-alarms-RTS - RTS not received from DTE (V.35 is DCE)

RFC description

Tiara Networks V35 interface configuration for clock rate, CRC, and flow control management.

Start monitoring Tiara Networks WAN router with V.35 serial interface module (clocking/alarm 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 TIARA-V35-MIB