All MIBs › CISCO-VOA-MIB › cVoaAttenuationControlMode
cVoaAttenuationControlMode
Module: CISCO-VOA-MIB
OID (symbolic): CISCO-VOA-MIB::cVoaAttenuationControlMode
OID (numeric): 1.3.6.1.4.1.9.9.262.1.1.1.1.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: This object is used to set the mode of controlling the attenuation level of a VOA at an interface.
When the mode is set to 'manual', the attenuation level is configured manually, by setting the desired attenuation level in the cVoaAttenuation object. The cVoaDesiredPower object does not apply in this case.
When the mode is set to 'automatic', the attenuation level is continuously adjusted to maintain a desired power level, after attenuation. The desired optical power level after attenuation is configured using the cVoaDesiredPower object. The cVoaAttenuation object cannot be configured in this case, but it indicates the attenuation level derived from the desired power level.
The automatic mode of controlling attenuation should not be used when the monitored power level includes multiple wavelengths, since the power level monitor cannot distinguish between a decrease in power across all wavelengths, versus a loss of power of some but not all wavelengths. If some but not all wavelengths go down, this would cause the attenuation level to be automatically decreased, leading to an increase in the power level of the remaining wavelengths.
What is cVoaAttenuationControlMode?
This read-write INTEGER sets whether a Variable Optical Attenuator's attenuation level is controlled manually (a fixed value set via cVoaAttenuation) or automatically (continuously adjusted to hold a target power level set via cVoaDesiredPower). An administrator chooses the mode based on whether they want direct control over signal loss or want the system to self-regulate output power. For example, setting this to automatic(2) causes the interface to keep adjusting attenuation to maintain the power level specified in cVoaDesiredPower.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.262.1.1.1.1.2 snmpwalk -v2c -c public <target> CISCO-VOA-MIB::cVoaAttenuationControlMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.262.1.1.1.1.2.1 snmpget -v2c -c public <target> CISCO-VOA-MIB::cVoaAttenuationControlMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.9.9.262.1.1.1.1.2.1 i <value>
Start monitoring Cisco DWDM optical transport platforms with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-VOA-MIB::cVoaAttenuationControlMode OID value, configure state conditions and alerts, and monitor any Cisco DWDM optical transport platforms from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.262 | ciscoVoaMIB | CISCO-VOA-MIB |
| 1.3.6.1.4.1.9.9.262.1 | cVoaMIBObjects | CISCO-VOA-MIB |
| 1.3.6.1.4.1.9.9.262.1.1 | cVoaBaseGroup | CISCO-VOA-MIB |
| 1.3.6.1.4.1.9.9.262.1.1.1 | cVoaTable | CISCO-VOA-MIB |
| 1.3.6.1.4.1.9.9.262.1.1.1.1 | cVoaEntry | CISCO-VOA-MIB |
| 1.3.6.1.4.1.9.9.262.1.1.1.1.2 | cVoaAttenuationControlMode | CISCO-VOA-MIB |