All MIBs › CISCO-VISM-ATM-TRUNK-MIB › vismAal2CidVad
vismAal2CidVad
Module: CISCO-VISM-ATM-TRUNK-MIB
OID (symbolic): CISCO-VISM-ATM-TRUNK-MIB::vismAal2CidVad
OID (numeric): 1.3.6.1.4.1.351.110.5.5.3.4.1.1.6
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: This attribute defines whether the VAD (Voice Activity Detection) has to be applied on this channel, upon detection of silence. For algorithms that do not have VAD standards, Cisco-proprietary VAD can be applied and the generic SID(Silence Information Descriptor) packet as specified in I.366.2 standards can be sent to the other end.
When the codec specify in vismAal2CidCodecType is 'clearChannel' VAD has to be off.
What is vismAal2CidVad?
This read-write TruthValue object controls whether Voice Activity Detection is applied on a channel to suppress transmission during silence, sending SID packets per I.366.2 or a Cisco-proprietary equivalent, and must be off when the codec is clearChannel. VAD saves bandwidth by not transmitting during silence, but it's explicitly incompatible with clear channel mode where all data must pass through unmodified. An engineer configuring a channel for fax or modem traffic using clearChannel would need to confirm this object is disabled since VAD would otherwise corrupt that non-voice signal.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.110.5.5.3.4.1.1.6 snmpwalk -v2c -c public <target> CISCO-VISM-ATM-TRUNK-MIB::vismAal2CidVad
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.351.110.5.5.3.4.1.1.6.1 snmpget -v2c -c public <target> CISCO-VISM-ATM-TRUNK-MIB::vismAal2CidVad.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.351.110.5.5.3.4.1.1.6.1 s <value>
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OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.351.110.5 | basisServices | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5.5 | voice | BASIS-MIB |
| 1.3.6.1.4.1.351.110.5.5.3 | vismChanGrp | BASIS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.351.110.5.5.3.4 | vismAal2CidGrp | CISCO-VISM-ATM-TRUNK-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.4.1 | vismAal2CidCnfTable | CISCO-VISM-ATM-TRUNK-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.4.1.1 | vismAal2CidEntry | CISCO-VISM-ATM-TRUNK-MIB |
| 1.3.6.1.4.1.351.110.5.5.3.4.1.1.6 | vismAal2CidVad | CISCO-VISM-ATM-TRUNK-MIB |