CLI (Command Line Interface)

Spanning Tree Commands (Cont.)

Command

Function

 

 

spanning-tree forward-time

Syntax:

This command configures the

spanning-tree forward-time seconds

spanning tree bridge forward

no spanning-tree forward-time

• seconds - Time in seconds. (Range: 4-30 seconds). The minimum value

time globally for this switch.

is the higher of 4 or [(max-age / 2) + 1].

Use the no form to restore the

Default Setting: 15 seconds

default.

 

Command Mode: Global Configuration

 

Command Usage: This command sets the maximum time (in seconds) the

 

root device will wait before changing states (i.e., discarding to learning to

 

forwarding). This delay is required because every device must receive

 

information about topology changes before it starts to forward frames. In

 

addition, each port needs time to listen for conflicting information that would

 

make it return to the discarding state; otherwise, temporary data loops

 

might result.

 

Example:

 

Console(config)#spanning-tree forward-time 20

 

Console(config)#

 

 

spanning-tree hello-time

Syntax:

This command configures the

spanning-tree hello-time time

spanning tree bridge hello time

no spanning-tree hello-time

• time - Time in seconds. (Range: 1-10 seconds). The maximum value is

globally for this switch.

the lower of 10 or [(max-age / 2) -1].

Use the no form to restore the

Default Setting: 2 seconds

default.

 

Command Mode: Global Configuration

 

Command Usage: This command sets the time interval (in seconds) at

 

which the root device transmits a configuration message.

 

Example:

 

Console(config)#spanning-tree hello-time 5

 

Console(config)

 

 

spanning-tree max-age

Syntax:

This command configures the

spanning-tree max-age seconds

spanning tree bridge maximum

no spanning-tree max-age

• seconds - Time in seconds. (Range: 6-40 seconds)

age globally for this switch.

The minimum value is the higher of 6 or [2 x (hello-time + 1)].

Use the no form to restore the

The maximum value is the lower of 40 or [2 x (forward-time - 1)].

default.

 

Default Setting: 20 seconds

 

Command Mode: Global Configuration

 

Command Usage: This command sets the maximum time (in seconds) a

 

device can wait without receiving a configuration message before

 

attempting to reconfigure. All device ports (except for designated ports)

 

should receive configuration messages at regular intervals. Any port that

 

ages out STA information (provided in the last configuration message)

 

becomes the designated port for the attached LAN. If it is a root port, a new

 

root port is selected from among the device ports attached to the network.

 

Example:

 

Console(config)#spanning-tree max-age 40

 

Console(config)#

 

 

NXA-ENET24 - Software Management Guide

249

 

 

Page 269
Image 269
AMX NXA-ENET24 manual Spanning-tree hello-time Syntax, Spanning-tree max-age Syntax

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.