Edimax Technology ES-5240G+ user manual

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Fig. 3-6

How does a switch operate?

A Layer 2 switch uses some features of the Data Link layer in OSI model to forward the packet to destination port(s). Here we introduce some important features of a switch and how they work.

MAC address table

When a packet is received on a port, the switch first checks if the packet is good or bad and extracts the source MAC address (SA) and destination MAC address (DA) to find 1) if SA exists in the MAC address table, if it does not, the switch will put it in the MAC address table; if it does, 2) the switch looks up DA and its associated port to which the traffic is forwarded. If DA does not exist, the switch will broadcast the packet.

Due to the limitation to the size of a MAC address, the MAC address aging function is applied. When the MAC address has resided and no updates been refreshed in the table for a long time, this means the traffic using that entry has not come for a while. If this time period is more than the aging time, the entry will be marked invalid. The vacancy is now available for other new MAC.

Both learning and forwarding are the most important functions in a switch. Besides that, VLAN can be one of the rules to forward packets. There are ingress rule and egress rule applied. The ingress rule is used to filter the incoming packet by VLAN ID and so on and to decide whether the packet is allowed to enter the switch or not. The egress rule is used to forward the packet to the proper port.

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Contents ES-5240G+ Port GbE Web Smart Switch Version 1.0 / JuneCopyright Table of Contents 100 Electronic Emission Notices Federal Communications Commission FCC StatementPage Overview of 24-Port GbE Web Smart Switch Key Features in the DeviceVlan Hardware ChecklistFeatures ManagementPage View of 24-Port GbE Web Smart Switch User Interfaces on the Front Panel Button, LEDs and PlugsSystem LED LED IndicatorsUser Interfaces on the Rear Panel 10/100/1000Ethernet TP Port 1 to 24 LEDView of the Optional Modules Front View of 1000Base-SX/LX LC, SFP Fiber TransceiverStarting 24-Port GbE Web Smart Switch Up Hardware and Cable InstallationConnecting the SFP Module to the Chassis Cabling Requirements TP Port and Cable InstallationPower On Firmware LoadingCabling Requirements for TP Ports Cabling Requirements for 1000SX/LX SFP Module1000Base-X TP, Fiber 100Base-TX TP 100Base-FX Fiber Typical Network Topology in DeploymentNo Vlan Configuration Diagram Case 2b Port-based Vlan See -4 Page Managing 24-Port GbE Web Smart Switch through Ethernet Port Management through Ethernet PortLogin Screen for Web IP Address Assignment110 10000000.00000001.00000010.1 Prefix Length No. of IP matched No. of Addressable IP Page Typical Applications 10 Network Connection between Remote Site and Central Site11 Peer-to-peer Network Connection Basic Concept and Management What’s the EthernetIEEE802.3 CSMA/CD MAC Snap STP BpduARP Media Access Control MAC SAP FormatPRE SFD FCSPage How does a MAC work? Bytes DTE Flow Control Page Bits How does a switch work? Collision Domain Page Page Virtual LAN Page CFI Tag FormatPage Page How does a Tagged Vlan work? VIDLink Aggregation 10 Example of Link Aggregation Application Operation of Web-based Management Web Management Home Overview Information of Page Layout Lacp Rstp SnmpSystem Configuration Function descriptionPage Page Port Configuration ON/OFFVlan Mode Configuration Port ConfigurationSelect Vlan Mode Vlan Group Configuration VIDAdd or Remove Vlan Member 10 Aggregation/Trunking Configuration Aggregation11 Lacp Port Configuration LacpRstp Rstp Port Configuration Page Page Page Port Mode Port Control Authentication Port Status Radius IP 16 802.1X Configuration 802.1x Parameters Igmp Snooping Vlan IDMirror Configuration 20 Mirror ports configurationQoSQuality of Service Configuration 21 QoS ConfigurationQoS Configuration Dscp Setting Filter Dhcp24 Filter Configuration 25 Rate Limit Configuration Rate Limit26 Storm Control Configuration Storm ControlParameter description Snmp Parameters description27 Snmp Configuration Monitoring Statistics Overview 28 Statistics Overview for all portsDetailed Statistics Page Page 29 Detailed Statistics for each port Lacp Status 30 Lacp StatusRstp Status 31 Rstp Status Igmp Status 32 Igmp Status Ping Status 33 Ping Maintenance Warm Restart 34 Warm RestartFactory Default Software Upgrade 36 Software UpgradeConfiguration File Transfer Function descriptionLogout Resolving No Link Condition Q&AAppendix a Technical Specifications ƒ MAC Address and Self-learning 8K MAC address ƒ Network InterfaceSFP ƒ Cable and Maximum LengthAmbient Temperature ƒ Diagnostic LEDƒ Power Requirement DimensionsManagement Software Specifications From RFC1155-SMI PRIVATE-ES-5240G+-MIB Definitions = Begin ImportsFrom RFC1213-MIB OBJECT-TYPE

ES-5240G+ specifications

Edimax Technology ES-5240G+ is a highly versatile and efficient Ethernet switch designed to cater to the networking needs of small to medium-sized businesses and home offices. With its robust features and reliable performance, this switch is an essential component for a seamless network infrastructure.

One of the standout features of the ES-5240G+ is its 24 10/100/1000Mbps Gigabit Ethernet ports. This allows for high-speed connectivity, enabling users to transfer large files quickly and efficiently. The switch is equipped with a non-blocking architecture, ensuring that all ports can be utilized simultaneously without any reduction in bandwidth. This is particularly beneficial for businesses that rely on high-speed internet and internal networks for their daily operations.

The ES-5240G+ supports advanced Layer 2 switching features, including VLAN (Virtual Local Area Network) support, port mirroring, and link aggregation. These features enhance network management and optimization, making it easier to segment network traffic and improve security. With VLAN support, users can create separate networks within the same switch, leading to improved performance and reduced broadcast traffic.

Moreover, the ES-5240G+ incorporates IEEE 802.3x Flow Control, which helps to prevent data loss during heavy traffic periods. This technology allows for effective communication between devices and ensures smooth data transmission, even in congested network environments. Additionally, the switch is equipped with Automatic MDI/MDI-X detection, eliminating the need for crossover cables and simplifying installation.

From a security perspective, Edimax has included features such as address filtering and port security, which help to protect the network from unauthorized access. The switch can restrict access to specific MAC addresses, providing an added layer of security for sensitive data.

In terms of energy efficiency, the ES-5240G+ is designed to comply with IEEE 802.3az Energy Efficient Ethernet standards. This technology helps to reduce power consumption during low-traffic periods, making it an eco-friendly choice for businesses looking to minimize their carbon footprint.

Overall, Edimax Technology ES-5240G+ stands out as a reliable and efficient Ethernet switch, equipped with a range of features that enhance network performance and security. Its capabilities make it an ideal choice for businesses seeking to streamline their networking infrastructure and improve operational efficiency.
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