CISCO-VISM-DSX1-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-VISM-DSX1-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2005-09-30

Category: Cisco Devices, Telephony and VoIP

Description: Manages T1/E1 (DSX1) interface configuration, framing, line coding, and performance for Cisco VISM gateway modules.

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What Is CISCO-VISM-DSX1-MIB?

CISCO-VISM-DSX1-MIB is a Cisco enterprise MIB extending CISCO-MGX82XX-DSX1-MIB to configure DS1/E1 (T1/E1) interfaces specifically on Voice Interworking Service Module (VISM) cards used in Cisco MGX voice gateway chassis. It exposes configuration data for line framing/signaling as well as voice-quality features such as echo cancellation (enable, tail length, tone disable), companding, and voice activity detection, plus channel-associated versus common-channel signaling settings. It supports monitoring of the module's configuration/software status for voice trunking; administrators check echo canceller and signaling settings to diagnose voice quality problems (echo, clipping) or CAS/CCS signaling mismatches on a T1/E1 voice trunk. It explicitly depends on, and extends, CISCO-MGX82XX-DSX1-MIB for its base DS1/E1 object model. It is typically deployed in carrier or enterprise MGX 8850/8250 voice gateway chassis using VISM cards for TDM-to-VoIP interworking. Engineers can download the CISCO-VISM-DSX1-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-VISM-DSX1-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

  • Cisco VISM (Voice Interworking Service Module) gateway card
  • Cisco MGX 8850/8250 chassis

Monitoring Examples

dsx1VismCnfGrpTable/Entry, indexed by vismLineNum, exposes vismEcanEnabled, vismEcanTail, and vismEcanREC to describe echo canceller configuration per line, while vismCompCnfVAD shows whether voice activity detection is enabled. vismSignalingType and vismCcsChannels reveal whether CAS or CCS signaling is provisioned; an admin checks these values to diagnose reported echo or signaling mismatches on a specific VISM T1/E1 trunk.

What Can Be Monitored

  • echo canceller enable/tail length
  • companding/VAD setting
  • signaling type (CAS/CCS)
  • number of CCS channels
  • cadence timing
Imported Objects

From BASIS-MIB

dsx1OBJECT-IDENTITY

From CISCO-MGX82XX-DSX1-MIB

dsx1AlmGrpOBJECT-IDENTITY

From CISCOWAN-SMI

ciscoWanOBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using vismDsx1TotalTxUncontrolledSlips OID:

Select a Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) 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 vismDsx1TotalTxUncontrolledSlips 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. The number of accumulative uncontrolled slips in the transmit direction. 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

RFC description

Configures and monitors DS1/E1 interface parameters and alarms for Cisco VISM voice module in MGX platforms.

Start monitoring Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) 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 CISCO-VISM-DSX1-MIB