Planet Technology GSD-1020 user manual Switch Operation, Address Table

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4. SWITCH OPERATION

Address Table

The Giga Switch is implemented with an address table. This address table composed of many entries. Each entry is used to store the address information of some node in network, including MAC address, port no, etc. This information comes from the learning process of Ethernet Switch.

Learning

When one packet comes in from any port, the Giga Switch will record the source address, port no. and the other related information in address table. This information will be used to decide either forwarding or filtering for future packets.

Forwarding & Filtering

When one packet comes from some port of the Ethernet Switching, it will also check the destination address besides the source address learning. The Ethernet Switching will lookup the address-table for the destination address. If not found, this packet will be forwarded to all the other ports except the port which this packet comes in. And these ports will transmit this packet to the network it connected. If found, and the destination address is located at different port from this packet comes in, the Ethernet Switching will forward this packet to the port where this destination address is located according to the information from address table. But, if the destination address is located at the same port with this packet comes in, then this packet will be filtered. Thereby increasing the network throughput and availability

Store-and-Forward

Store-and-Forward is one type of packet-forwarding techniques. A Store-and Forward Ethernet Switching stores the incoming frame in an internal buffer, do the complete error checking before transmission. Therefore, no error packets occurrence, it is the best choice when a network needs efficiency and stability.

The Ethernet Switch scans the destination address from the packet-header, searches the routing table provided for the incoming port and forwards the packet, only if required. The fast forwarding makes the switch attractive for connecting servers directly to the network, thereby increasing throughput and availability. However, the switch is most commonly used to segment existing hubs, which nearly always improves overall performance. A Ethernet Switching can be easily configured in any Ethernet network environment to significantly boost bandwidth using conventional cabling and adapters.

Due to the learning function of the Ethernet switching, the source address and corresponding port number of each incoming and outgoing packet are stored in a routing table. This information is subsequently used to filter packets whose destination address is on the same segment as the source address. This confines network traffic to its respective domain and reduces the overall load on the network.

The Giga Switch performs "Store and forward" therefore, no error packets occur. More reliably, it reduces the re-transmission rate. No packet loss will occur.

Auto-Negotiation

The STP ports on the GSD-1020 switch have built-in "Auto-negotiation". This technology automatically sets the best possible bandwidth when a connection is established with another network device (usually at Power On or Reset). This is done by detecting the modes and speeds at the second of both device is connected and capable of, Both 10Base-T and 100Base-TX devices can connect with the port in either Half- or Full-duplex mode. 1000Base-T can only connected in Full-duplex mode.

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Contents 10/100/1000Mbps Gigabit / Fast Ethernet Switch Disclaimer TrademarksFCC Warning CE Mark Warning RevisionTable of Contents About the Switch ChecklistFeatures Check the contents of your package for following partsHardware Description LED indicators SystemFront Panel 100Base-TX1000Base-T Rear PanelConnecting end node, hub or switch InstallationBefore start up CablingConnecting to Network Backbone or Server Cable distance for SwitchMake sure the wiring is correct Address Table Switch OperationTroubleshooting Link LED is not litPerformance is bad Appendix a Networking Connection Switch‘s RJ-45 Pin Assignments10/100Mbps / 10/100Base-TX RJ-45 cable pin assignmentGSD-1020 10/100/1000Mbps Gigabit Fast Ethernet Switch Appendix B Technical Specifications

GSD-1020 specifications

Planet Technology GSD-1020 is a cutting-edge device designed to meet the increasing demands of modern networking environments. As part of Planet Technology's extensive lineup of networking solutions, the GSD-1020 is particularly tailored for small to medium-sized businesses, offering a versatile and reliable switch that enhances productivity and streamlines communication.

One of the standout features of the GSD-1020 is its support for 10 Gigabit Ethernet connectivity, which provides lightning-fast data transmission. This enables organizations to manage heavy data loads efficiently and ensure seamless application performance. With multiple 10G SFP+ ports, the switch allows for flexible network architecture, accommodating various setups and configurations to suit specific business needs.

In terms of design, the GSD-1020 is built with robust hardware to withstand diverse operating conditions. Its metal chassis not only provides durability but also aids in effective heat dissipation. The switch supports both standard and PoE (Power over Ethernet) configurations, enabling it to power connected devices such as IP cameras, phones, and wireless access points directly through the Ethernet cable, simplifying installation and reducing cable clutter.

The GSD-1020 incorporates advanced Layer 2 switching features, ensuring that data packets are prioritized and efficiently directed to their destinations. With features such as VLAN support and port mirroring, the switch enhances network management and security while allowing for efficient traffic segmentation. This is particularly beneficial for businesses with varying network requirements, as it permits greater control over data flow.

Another significant aspect of the GSD-1020 is its energy efficiency. Designed in compliance with the IEEE 802.3az Energy-Efficient Ethernet standard, the switch minimizes power consumption without compromising performance. This not only reduces operational costs for organizations but also supports environmental sustainability initiatives by lowering the carbon footprint.

Planet Technology GSD-1020 is easy to manage and configure, featuring a user-friendly web interface that simplifies the setup process. This intuitive management system allows IT professionals to monitor the network status, configure settings, and troubleshoot issues with minimal effort, making it accessible even for those with basic technical knowledge.

Overall, the Planet Technology GSD-1020 stands out as a powerful and versatile networking solution. Its combination of high-speed connectivity, robust design, advanced management features, and energy efficiency makes it an ideal choice for businesses looking to enhance their network infrastructure while ensuring reliable performance and future scalability.
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