US 11,689,467 B2 · QOS policy provisioning on resource constrained network devices

Abstract

Embodiments herein describe techniques for prioritizing applications based on application usage data. The space in the TCAM in many network devices is limited. That is, there may be more applications (and corresponding QoS settings) than there is space in the TCAM. In the embodiments herein, a netflow collector monitors the traffic flows in the network devices. A application usage tracker can identify which applications generate traffic in which network devices. That is, the application usage tracker can identify, based on the information provided by the netflow collector, the application usage of each network device. The central management tool can prune the applications that are not used by the network device and generate QoS settings only for applications that are used by the network device.

Claims20

Dependent claims

A method, comprising:

monitoring application traffic in a plurality of network devices;
receiving a plurality of Quality of Service (QoS) policies, each corresponding to one of the plurality of network devices, wherein each of the QoS policies comprise QoS settings for a plurality of applications, wherein a number of the QoS settings is constrained by a size of a ternary content-addressable memory (TCAM) in each of the plurality of network devices;
identifying, based on the application traffic, which ones of the plurality of applications generated a respective traffic flow on each of the plurality of network devices during a predefined time period;
updating each of the QoS policies to remove any settings in the QoS settings corresponding to an application of the plurality of applications that did not generate a respective traffic flow on the corresponding one of the plurality of network devices during the predefined time period;
and
transmitting the QoS settings of the updated QoS policies to be stored in the TCAMs of the plurality of network devices.

3 more elements

A non-transitory computer readable medium having program instructions embodied therewith, the program instructions executable by a processor to perform an operation, the operation comprising:

monitoring application traffic in a plurality of network devices;
receiving a plurality of QoS policies, each corresponding to one of the plurality of network devices, wherein each of the QoS policies comprise QoS settings for a plurality of applications, wherein a number of the QoS settings is constrained by a size of a TCAM in each of the plurality of network devices;
identifying, based on the application traffic, which ones of the plurality of applications generated a respective traffic flow on each of the plurality of network devices during a predefined time period;
updating each of the QoS policies to remove any settings in the QoS settings corresponding to an application of the plurality of applications that did not generate a respective traffic flow on the corresponding one of the plurality of network devices during the predefined time period;
and
transmitting the QoS settings of the updated QoS policies to be stored in the TCAMs of the plurality of network devices.

3 more elements

A system, comprising:

a processor;
and
a memory, wherein the memory comprises an application, which when executed by the processor, performs an operation, the operation comprising:
monitoring application traffic in a plurality of network devices;
receiving a plurality of QoS policies, each corresponding to one of the plurality of network devices, wherein each of the QoS policies comprise QoS settings for a plurality of applications, wherein a number of the QoS settings is constrained by a size of a TCAM in each of the plurality of network devices;
identifying, based on the application traffic, which ones of the plurality of applications generated a respective traffic flow on each of the plurality of network devices during a predefined time period;
updating each of the QoS policies to remove any settings in the QoS settings corresponding to an application of the plurality of applications that did not generate a respective traffic flow on the corresponding one of the plurality of network devices during the predefined time period;
and
transmitting the QoS settings of the updated QoS policies to be stored in the TCAMs of the plurality of network devices.

6 more elements

Dependencies are inferred from the claim text.

QOS policy provisioning on resource constrained network devices

Life of this patent

QOS policy provisioning on resource constrained network devices

Life of this patent

Abstract

Claims20