All MIBs › CISCO-VISM-MODULE-MIB › vismVADDutyCycle
vismVADDutyCycle
Module: CISCO-VISM-MODULE-MIB
OID (symbolic): CISCO-VISM-MODULE-MIB::vismVADDutyCycle
OID (numeric): 1.3.6.1.4.1.351.110.3.17.4.23
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: This object refers to the talk-spurts duty cycle. The unit is in percentage.
When the value of this object is to be passed to underlying CAC module in VISM this value has to be divided by 100.
This causes the actual range of this object to be 0.01 to 0.99 and not 0.01 to 1.00 as specified in the range of values above. Since a value of 100 will cause a floating point exception, this value is disallowed.
The default value is 0.61 and since we cannot have fractions in a MIB variable the value is being multiplied by 100 and is expressed as 61.
This object will be applicable in case of AAL2 SVCs where the user does not add a PVC and also this object will be applicable if the per PVC level object vismChanVADDutyCycle(defined in CISCO-VISM-CAC-MIB MIB) is configured to have a value of zero.
Configuring this object will not have any affect when card level CAC is disabled (vismCacEnable).
What is vismVADDutyCycle?
This read-write Integer32 (1-100) represents the talk-spurt duty cycle percentage used by Voice Activity Detection, though internally it is divided by 100 before being passed to the CAC module, making the effective range 0.01 to 0.99 rather than a full 1.00. An admin cares because this value influences how much bandwidth voice activity detection assumes is actually used for real speech versus silence when computing call admission decisions. For example, an engineer tuning bandwidth planning for a heavily loaded VISM card would adjust this duty cycle rather than setting it to 100, which the MIB warns causes a floating point exception.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.110.3.17.4.23 snmpwalk -v2c -c public <target> CISCO-VISM-MODULE-MIB::vismVADDutyCycle
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.351.110.3.17.4.23.1 snmpget -v2c -c public <target> CISCO-VISM-MODULE-MIB::vismVADDutyCycle.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.351.110.3.17.4.23.1 i <value>
Start monitoring Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-VISM-MODULE-MIB::vismVADDutyCycle OID value, configure state conditions and alerts, and monitor any Cisco VISM (Voice Interworking Service Module) card, MGX platform (legacy) from a single console.
OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.351 | stratacom | CISCOWAN-SMI |
| 1.3.6.1.4.1.351.110 | basis | BASIS-MIB |
| 1.3.6.1.4.1.351.110.3 | cardSpecific | BASIS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.351.110.3.17 | vismConfig | CISCO-VISM-MODULE-MIB |
| 1.3.6.1.4.1.351.110.3.17.4 | vismSystemGrp | CISCO-VISM-MODULE-MIB |
| 1.3.6.1.4.1.351.110.3.17.4.23 | vismVADDutyCycle | CISCO-VISM-MODULE-MIB |