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Allied Telesis AT-9000/28SP, AT-9000/52 manual Setting the Port Spanning Tree Protocol

Models: AT-9000/52 AT-9000/28SP AT-9000/28

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Chapter 7

Setting the Port Spanning Tree Protocol

The Spanning Tree Protocol (STP) and the Rapid Spanning Tree Protocol (RSTP) guard against the formation of loops in an Ethernet network topology. A topology has a loop when two or more nodes can transmit packets to each other over more than one data path. Packets can become caught in repeating cycles, referred to as broadcast storms, that needlessly consume network bandwidth and that can significantly reduce network performance.

This chapter provides a brief description of the spanning tree protocols and explains how to set spanning tree on a port. See the following sections:

“Overview” on page 90

“Displaying Port Spanning Tree Protocol Settings” on page 91

“Modifying Port Spanning Tree Protocol Settings” on page 93

Note

For information about how to set a spanning tree protocol for the switch, see Chapter 12, “Setting Switch Spanning Tree Protocols” on page 135.

For more information about the spanning tree protocols, see the following chapters in the AlliedWare Plus Management Software Command Line Interface User’s Guide:

Chapter 35: Spanning Tree and Rapid Spanning Tree Protocols

Chapter 36: Spanning Tree Protocol (STP)

Chapter 37: STP Commands

Chapter 38: Rapid Spanning Tree Protocol (RSTP)

Chapter 39: RSTP Commands

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Allied Telesis AT-9000/28SP, AT-9000/52 manual Setting the Port Spanning Tree Protocol
Page 88 Page 90

AT-9000/52, AT-9000/28SP, AT-9000/28 specifications

The Allied Telesis AT-9000/28 is a versatile and robust network switch designed for organizations seeking to enhance their networking capability. This Layer 2 managed switch delivers a high degree of performance and reliability, making it an ideal choice for businesses that require a seamless network experience.

One of the main features of the AT-9000/28 is its 28 ports, which include 24 Fast Ethernet ports and 4 Gigabit Ethernet uplink ports. This allows for flexible network configuration and scalability, accommodating both wired and wireless devices efficiently. The switch also supports auto-negotiation and auto-MDI/MDI-X, which simplifies installation and connectivity by automatically detecting and configuring the appropriate settings.

The AT-9000/28 employs advanced switching technologies, such as IEEE 802.1Q VLAN tagging, which enables the segregation of traffic for improved security and performance. This feature is crucial for businesses that require data isolation between different departments or user groups. In addition, the switch supports quality of service (QoS) protocols, allowing for traffic prioritization. This is particularly beneficial for organizations that handle multimedia applications or VoIP services that demand reliable bandwidth.

Another significant characteristic of the AT-9000/28 is its support for port mirroring. This capability is essential for network monitoring and troubleshooting, as it allows administrators to track and analyze network traffic efficiently. Furthermore, the switch supports multiple user authentication methods, including RADIUS and TACACS+, thus enhancing network security.

The AT-9000/28 is built with energy efficiency in mind, featuring Energy Efficient Ethernet (EEE) technology. This reduces power consumption during periods of low traffic without compromising performance, which aids in lowering overall operational costs.

In terms of management, the AT-9000/28 offers versatile management options, including a web-based GUI, Command Line Interface (CLI), and SNMP support. This flexibility enables network administrators to configure, monitor, and troubleshoot the switch easily.

Overall, the Allied Telesis AT-9000/28 is a reliable switch well-suited for a variety of network environments. Its combination of performance, security features, and energy efficiency makes it an excellent choice for organizations looking to optimize their network infrastructure. With robust capabilities and advanced technologies, the AT-9000/28 stands out as a valuable addition to any networking setup.