Class of Service Configuration

Setting the Default Priority for Interfaces - CLI

This example assigns a default priority of 5 to port 3.

FIG. 154 CLI - Port Priority Configuration

Mapping CoS Values to Egress Queues

This switch processes Class of Service (CoS) priority tagged traffic by using four priority queues for each port, with service schedules based on Weighted Round Robin (WRR). Up to 8 separate traffic priorities are defined in IEEE 802.1p. The default priority levels are assigned according to recommendations in the IEEE 802.1p standard as shown in the following table.

Egress Queue Priority Mapping

Queue

0

1

2

3

 

 

 

 

 

Priority

1,2

0,3

4,5

6,7

 

 

 

 

 

 

 

 

1,2

Q0

 

 

 

 

 

 

0,3

Q1

 

 

 

 

 

 

4,5

Q2

 

 

 

 

 

 

6,7

Q3

 

 

 

Serviced by weighted round robin

FIG. 155 Weighted Round Robin (WRR)

The priority levels recommended in the IEEE 802.1p standard for various network applications are shown in the following table. However, you can map the priority levels to the switch’s output queues in any way that benefits application traffic for your own network.

CoS Priority Levels

Priority Level

Traffic Type

 

 

1

Background

 

 

2

(Spare)

 

 

0 (default)

Best Effort

 

 

3

Excellent Effort

 

 

4

Controlled Load

 

 

5

Video, less than 100 milliseconds latency and jitter

 

 

6

Voice, less than 10 milliseconds latency and jitter

 

 

7

Network Control

 

 

138

NXA-ENET24 - Software Management Guide

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AMX NXA-ENET24 Setting the Default Priority for Interfaces CLI, Mapping CoS Values to Egress Queues, CoS Priority Levels

NXA-ENET24 specifications

The AMX NXA-ENET24 is a versatile and powerful networked control interface designed to meet the growing demands of modern AV systems. This network switch offers an exceptional combination of reliability, performance, and scalability, making it an ideal choice for professional environments such as conference rooms, educational facilities, and control rooms.

One of the key features of the NXA-ENET24 is its 24-port configuration, allowing for extensive connectivity options. Each port supports 10/100/1000 Mbps speeds, ensuring that high bandwidth applications are handled with ease. Additionally, the switch incorporates advanced auto-negotiation technology, which automatically configures the optimal speed and duplex mode for connected devices. This ensures seamless connectivity and minimizes the risk of network disruptions.

The NXA-ENET24 is designed with advanced management capabilities, including support for VLANs, which helps to segment network traffic for enhanced security and performance. Network administrators can easily create virtual local area networks to optimize traffic flow and reduce congestion. This feature is particularly beneficial in environments where multiple AV systems operate concurrently.

Another significant characteristic of the NXA-ENET24 is its support for Power over Ethernet, or PoE. This feature enables the switch to deliver electrical power alongside data through the network cables. As a result, devices such as IP cameras, VoIP phones, and wireless access points can be powered directly from the switch, simplifying deployment and reducing the need for additional power sources.

Monitoring and management of the switch are made easier through a user-friendly interface. The NXA-ENET24 supports SNMP for network management, allowing users to monitor performance metrics, configure settings, and receive alerts in case of issues. This level of oversight is crucial for maintaining the stability of AV systems in mission-critical applications.

Durability is another hallmark of the NXA-ENET24 design. The switch features a robust chassis that is engineered to withstand the rigors of professional use. With cooling mechanisms in place and a fanless design, the NXA-ENET24 operates quietly and efficiently, making it suitable for environments where noise is a concern.

In conclusion, the AMX NXA-ENET24 is a powerful, reliable, and feature-rich network switch that effectively supports modern AV applications. With its extensive connectivity options, advanced management capabilities, PoE support, and durable design, it is an excellent choice for integrators and organizations looking to optimize their network infrastructure.