Uplink Ports

RS-232 Console Port

AT-9000/28 Gigabit Ethernet ecoSwitch Installation Guide

The switch has four combo pairs of uplink ports, each consisting of one slot for a SFP transceiver and an redundant 10/100/1000 Base-T twisted pair port .The ports are numbered 25 through 28 on the AT-9000/28 Gigabit Ethernet ecoSwitch. The twisted pair ports in each of the combo pairs are identified with the letter “R” for “Redundant” as part of their number on the front faceplate of the unit.

In each combo pair, you can use one port pair at a time. A link on an SFP transceiver takes precedence over a link on the corresponding redundant twisted pair port. If an SFP transceiver is installed and has a link to an end node, the twisted pair port in the pair is inactive. If the SFP slot is empty or if an SFP module is inserted and does not have an active link, the 10/100/ 1000Base-T twisted pair port of the pair will be active.

Note

When the copper port is inactive, it may have a link to its end node. However, the port will not pass traffic in this mode.

Follow these guidelines when using these SFP slots and reduncant ports:

ˆOnly one port in a pair can be active at a time — either the SFP module or its corresponding twisted pair port.

ˆThe twisted pair port is the active port when its SFP slot is empty, or when a SFP module is installed but has not established a link to an end node.

ˆA twisted pair port automatically changes to the inactive mode when a SFP module in the corresponding slot establishes a link with an end node.

ˆA twisted pair port automatically transitions back to the active status when the link is down on the corresponding SFP module.

ˆIn nearly all cases, a twisted pair port and a SFP module share the same configuration settings, including port settings, VLAN assignments, access control lists, and spanning tree.

An exception to the shared settings is port speed. If you disable Auto- Negotiation on a twisted pair port and set the speed and duplex mode manually, the speed reverts to Auto-Negotiation when a SFP module establishes a link with an end node.

The RS-232 Console port uses the management cable supplied with the switch. Through the Console port you can connect to the switch and use the CLI-based AT-S100 Mangement Software user interface.

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Allied Telesis AT-9000/28 manual Uplink Ports
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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.
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