Network management traffic is typically considered delay-sensitive because it often includes real-time monitoring and control data that require timely delivery to maintain network stability and performance.
Placing this traffic in a low latency queue ensures that it is prioritized and experiences minimal delay, which is crucial for effective network management. References: Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) study materials would provide more detailed information on QoS policies and treatment of network management traffic.
Low latency queuing (LLQ) adds a priority queue to CBWFQ from which delay-sensitive traffic, such as voice traffic, can be transmitted ahead of packets in other queues.
By configuring the quality of service (QoS), you can provide preferential treatment to specific types of traffic at the expense of other traffic types. Without QoS, thedeviceoffers best-effort service for each packet, regardless of the packet contents or size. Thedevicesends the packets without any assurance of reliability, delay bounds, or throughput.
The following are specific features provided by QoS:
* Low latency
* Bandwidth guarantee
* Buffering capabilities and dropping disciplines
* Traffic policing
* Enables the changing of the attribute of the frame or packet header
* Relative services
* Modular QoS Command-Line Interface
* Supported QoS Features forWired Access
* Hierarchical QoS