Chapter 4: Installing the Switch

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WARNING: When selecting a fiber SFP device, make sure that it can function at a temperature that is not less than the recommended maximum operational temperature of the product. You must also use an approved Laser SFP transceiver.

Step 1. Remove and keep the LC port’s rubber plug. When not connected to a fiber cable, replace the rubber plug to protect the optics.

Step 2. Check that the fiber terminators are clean. You can clean the cable plugs by wiping them gently with a clean tissue or cotton ball moistened with a little ethanol. Dirty fiber terminators on fiber optic cables will impair the quality of the light transmitted through the cable and lead to degraded performance on the port.

Step 3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device. Since LC connectors are keyed, the cable can be attached in only one orientation.

Figure 4-8. Making fiber port connections.

Step 4. As a connection is made, check the Link LED on the switch corresponding to the port to be sure that the connection is valid.

The fiber optic ports operate at 1 Gbps. The maximum length for fiber optic cable operating at Gigabit speed will depend on the fiber type as listed in Section 4.12, 1000-Mbps Gigabit Ethernet Collision Domain.

4.10 Connectivity Rules

NOTE: When adding hubs to your network, switches break up the path for connected devices into separate collision domains, so you don’t include the switch or connected cabling in your calculations for cascade length involving other devices.

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Black Box Black Box SFP Managed Switch Eco, LGB5128A quick start Connectivity Rules, Powered on
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LGB5128A, Black Box SFP Managed Switch Eco specifications

The Black Box LGB5128A, known for its robust design and advanced capabilities, is a standout component in the realm of network switches. Specifically, it is a managed switch that brings forth a spectrum of features tailored to enhance performance for various networking needs. Built to accommodate the demands of modern enterprises, the LGB5128A combines efficiency with scalability.

At its core, the LGB5128A is equipped with 28 ports, featuring a combination of 24 Gigabit Ethernet ports and 4 specialized SFP (Small Form-factor Pluggable) ports. This configuration allows users to enjoy flexibility in connectivity options, supporting copper and fiber connections. Its ability to seamlessly integrate into existing infrastructures makes it an ideal choice for businesses planning to expand their networks without a complete overhaul.

One of the defining features of the Black Box LGB5128A is its managed switch capabilities. Administrators can easily configure, monitor, and manage the network through a user-friendly interface. This includes web-based management, Command Line Interface (CLI), and SNMP support, providing multiple layers for network management. Advanced features such as VLAN, QoS (Quality of Service), and Link Aggregation ensure that data traffic is efficiently handled and prioritized, improving overall network performance.

The LGB5128A also emphasizes security with features like 802.1X port-based authentication, providing a robust framework to prevent unauthorized access. Moreover, it supports IGMP snooping, which optimizes multicast traffic, ensuring that bandwidth is used effectively. Another important characteristic is its redundancy support, including Rapid Spanning Tree Protocol (RSTP), which reinforces network reliability and uptime.

In terms of technological advancements, the managed switch incorporates features such as Power over Ethernet (PoE) capabilities in some models, enabling seamless power delivery to connected devices. This is particularly beneficial for powering devices like IP cameras and VoIP phones without the need for additional power sources.

Overall, the Black Box LGB5128A managed switch stands out in the networking landscape with its extensive features, security measures, and scalability options. Its blend of performance, flexibility, and management capabilities makes it an exceptional choice for businesses aiming to enhance their networking infrastructure while ensuring peak performance and security.
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