PRTG Manual: SNMP Cisco CBQoS Sensor

The SNMP Cisco CBQoS sensor monitors network parameters using Cisco's Class Based Quality of Service (CBQoS) via the Simple Network Management Protocol (SNMP).

The sensor supports the classes Class Map, Match Statement, and Queueing.

For a detailed list and descriptions of the channels that this sensor can show, see section Channel List.

Sensor in Other Languages

Dutch: SNMP Cisco CBQoS
French: Cisco CBQoS (SNMP)
German: SNMP Cisco CBQoS
Japanese: SNMP Cisco CBQoS
Portuguese: CBQoS Cisco (SNMP)
Russian: SNMP Cisco CBQoS
Simplified Chinese: SNMP Cisco CBQoS
Spanish: CBQoS Cisco (SNMP)

Remarks

Consider the following remarks and requirements for this sensor:

Remark	Description
IPv4	This sensor only supports IPv4.
Performance impact	This sensor has a very low performance impact.

Basic Sensor Settings

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

cbqossensor

For more information about basic sensor settings, see section Sensor Settings.

Class Based QoS Specific

Setting	Description
Object Type	The object type of the parameter that this sensor monitors.
Interface	The interface of the parameter that this sensor monitors.
Description	The description of the parameter that this sensor monitors.
BitMask	The number of available channels for the parameter that this sensor monitors.
ObjectID	The ObjectID of the parameter that this sensor monitors.
ConfigID	The ConfigID of the parameter that this sensor monitors.

Sensor Display

Setting	Description
Primary Channel	Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor. You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.
Graph Type	Define how this sensor shows different channels: Show channels independently (default): Show a graph for each channel. Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic. You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).
Stack Unit	This setting is only visible if you select Stack channels on top of each other above. Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Setting

Description

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

Show channels independently (default): Show a graph for each channel.
Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Inherited Settings

By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click under the corresponding setting name to disable the inheritance and to display its options.

For more information, see section Inheritance of Settings.

Channel List

Which channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.

Channel	Description
Current Queue Depth	The current queue depth
Downtime	In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status.
Drop Packets	The number of drop packets
Drop Size	The drop size
Maximum Queue Depth	The maximum queue depth
No Buffer Drop Packets	The number of drop packets without buffer
Post Policy Size	The post policy size
Pre Policy Packets	The number of pre-policy packets
Pre Policy Size	The pre-policy size