Page 3 - Content; Chapter 1
GE-DS-242-PoE Managed Ethernet Switch User Manual i Content Chapter 1 Introduction 1 Package Contents 2 Product Description 2 How to Use this Manual 3 Product Features 4 Product Specifications 7 Chapter 2 Installation 11 Hardware Description 12 Switch Installation 15 Chapter 3 Switch Management 21 R...
Page 4 - Chapter 6
ii GE-DS-242-PoE Managed Ethernet Switch User Manual Chapter 6 Command Line Interface 127 Operation Notice 127 System Commands 128 Switch Static Configuration 129 Trunk Configuration 135 VLAN Configuration 138 Misc Configuration 147 Administration Configuration 149 MAC limit 154 Port Mirroring Confi...
Page 5 - The GE Security
GE-DS-242-PoE Managed Ethernet Switch User Manual 1 Chapter 1 Introduction The GE Security GE-DS-242-PoE offers 24 10/100Mbps Fast Ethernet ports with 2 Gigabit TP/SFP combo ports (Port-25, 26). The two Gigabit TP/SFP combo ports can be either 1000Base-T for 10/100/1000Mbps or 1000Base-SX/LX through...
Page 6 - Package Contents; What’s in the box; Product Description; High Performance Wire-Speed Switching
Chapter 1: Introduction 2 GE-DS-242-PoE Managed Ethernet Switch User Manual Package Contents What’s in the box Open the Managed Switch box and carefully unpack it. The box should contain the following items: The Managed Switch x1 User’s manual CD x1 Installation Sheet x1 19” Rack mount accessory kit...
Page 7 - Power Over Ethernet; Rapid Spanning Tree; How to Use this Manual
Chapter 1: Introduction GE-DS-242-PoE Managed Ethernet Switch User Manual 3 Power Over Ethernet The PoE in-line power following the standard IEEE 802.3af makes the GE-DS-242-PoE able to power on 24 PoE devices at a distance of up to 100 meters through the 4-pair Cat 5/5e UTP wire. Cost-effective sol...
Page 8 - Product Features
Chapter 1: Introduction 4 GE-DS-242-PoE Managed Ethernet Switch User Manual Product Features • Physical Port o 24-Port 10/100Base-TX RJ-45 with PoE Injector o 2-Port Gigabit TP/SFP combo interfaces o Reset button for system management o 1 RS-232 male DB9 console interface for Switch basic management...
Page 11 - Product Specifications
Chapter 1: Introduction GE-DS-242-PoE Managed Ethernet Switch User Manual 7 Product Specifications GE-DS-242-PoE HARDWARE SPECIFICATIONS 10/100Mbps Copper Ports 24 10/100Base-TX RJ-45 Auto-MDI/MDI-X ports 1000Mbps Copper Ports 2 10/100/1000Base-T RJ-45 port SFP/mini-GBIC Slots 2 SFP interfaces, shar...
Page 16 - Hardware Description; Switch Front Panel; Gigabit TP Interface
Chapter 2: Installation 12 GE-DS-242-PoE Managed Ethernet Switch User Manual Hardware Description Switch Front Panel The Switches front panel provides a simple interface for monitoring the Managed Switch. Figure 2-1 shows the front panel of the Managed Switch. Figure 2-1: GE-DS-242-PoE Switch front ...
Page 17 - Reset button; LED Indicators
Chapter 2: Installation GE-DS-242-PoE Managed Ethernet Switch User Manual 13 Reset button At the left of front panel, the Reset button is designed to reboot the Managed Switch without turning the power off. The following table summarizes the Reset button functions: Reset Button Pressed and Released ...
Page 18 - System; default mode the entire configuration will be erased.
Chapter 2: Installation 14 GE-DS-242-PoE Managed Ethernet Switch User Manual • System LED Color Function PWR Green Lit: indicates there is power to the Switch • Per 10/100Base-TX, PoE interfaces (Port-1 to Port-24) LED Color Function LNK/ACT Green Lit: indicates the link through that port is success...
Page 19 - Switch Rear Panel; Switch Installation; Desktop/Shelf Installation; when selecting a location for the Managed Switch.
Chapter 2: Installation GE-DS-242-PoE Managed Ethernet Switch User Manual 15 Switch Rear Panel The rear panel of the Managed Switch includes an AC inlet power socket, which accepts input power from 100 to 240VAC, 50-60 Hz. Figure 2-3 shows the rear panel of the Managed Switch. Figure 2-3: GE-DS-242-...
Page 20 - surrounding objects.; Rack-mount Installation
Chapter 2: Installation 16 GE-DS-242-PoE Managed Ethernet Switch User Manual Step 3: Ensure there is enough ventilation space between the Managed Switch and surrounding objects. Figure 2-4: Typical placement of GE-DS-242-PoE on desktop NOTE: Connection to the Managed Switch requires UTP Category 5 n...
Page 21 - positioned towards the front.
Chapter 2: Installation GE-DS-242-PoE Managed Ethernet Switch User Manual 17 Step 1: Place the Managed Switch on a hard flat surface, with the front panel positioned towards the front. CAUTION: Use only the screws supplied with the mounting brackets. Damage caused by using incorrect screws will inva...
Page 22 - network cabling and supply power to the Managed Switch.; SFP Transceiver Installation; Approved GE Security SFP Transceivers
Chapter 2: Installation 18 GE-DS-242-PoE Managed Ethernet Switch User Manual Step 6: Follow steps 4 and 5 of the Desktop Installation section to connect the network cabling and supply power to the Managed Switch. SFP Transceiver Installation This section describes how to insert an SFP transceiver in...
Page 23 - Connect the fiber cable:
Chapter 2: Installation GE-DS-242-PoE Managed Ethernet Switch User Manual 19 Before connecting the other switches, workstations or Media Converter: 1. Make sure both sides of the SFP transceiver are the same media type (for example: 1000Base-SX to 1000Base-SX, 1000Bas-LX to 1000Base-LX). 2. Verify t...
Page 25 - Requirements
GE-DS-242-PoE Managed Ethernet Switch User Manual 21 Chapter 3 Switch Management This chapter explains the methods that you can use to configure management access to the Managed Switch. It describes the types of management applications and the communication and management protocols that deliver data...
Page 27 - Web Management
Chapter 3: Switch Management GE-DS-242-PoE Managed Ethernet Switch User Manual 23 Table 3-1: Management Methods Comparison Method Advantages Disadvantages Web Browser • Ideal for configuring the switch remotely • Compatible with all popular browsers • Can be accessed from any location • Most visuall...
Page 29 - SNMP-Based Network Management
Chapter 3: Switch Management GE-DS-242-PoE Managed Ethernet Switch User Manual 25 SNMP-Based Network Management You can use an external SNMP-based application to configure and manage the Managed Switch, such as SNMPc Network Manager, HP Openview Network Node Management (NNM) or What'sup Gold. This m...
Page 30 - Direct Access; data bits
Chapter 3: Switch Management 26 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 3-4: Console management setup Direct Access Direct access to the administration console is achieved by directly connecting a terminal or a PC equipped with a terminal-emulation program (such as HyperTerminal) to...
Page 31 - Protocols; The Managed Switch supports the following protocols:; SNMP Protocol
Chapter 3: Switch Management GE-DS-242-PoE Managed Ethernet Switch User Manual 27 You can change these settings, if desired, after you log on. This management method is often preferred because you can remain connected and monitor the system during system reboots. Also, certain error messages are sen...
Page 32 - Management Architecture
Chapter 3: Switch Management 28 GE-DS-242-PoE Managed Ethernet Switch User Manual devices and data-collection programs. SNMP runs on top of the User Datagram Protocol (UDP), offering a connectionless-mode service. Management Architecture All of the management application modules use the same Messagi...
Page 33 - Summary; About Web-based Management
GE-DS-242-PoE Managed Ethernet Switch User Manual 29 Chapter 4 Web-Based Management Summary This section introduces the configuration and functions of the Web-Based management. About Web-based Management The Managed Switch offers management features that allow users to manage the Managed Switch from...
Page 34 - Ethernet Port connect; Logging on to the Switch; admin
Chapter 4: Web-Based Management 30 GE-DS-242-PoE Managed Ethernet Switch User Manual Requirements • Workstations of subscribers running Windows 98/ME, NT4.0, 2000/2003/XP, MAC OS9 or later, Linux, UNIX or other platform compatible with TCP/IP protocols. • Workstation installed with Ethernet NIC (Net...
Page 36 - Main Web Page
Chapter 4: Web-Based Management 32 GE-DS-242-PoE Managed Ethernet Switch User Manual NOTE: • We recommend using Internet Explorer 6.0 or above to access Managed Switch. • A changed IP address take effect immediately after click on the Save button, you need to use the new IP address to access the Web...
Page 37 - The port states are illustrated as follows:; Main Menu
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 33 The port states are illustrated as follows: State Disabled Down Link RJ-45 Ports SFP Ports PoE Ports Main Menu Using the onboard web agent, you can define system parameters, manage and control the Managed Switch, an...
Page 38 - System Information; The System information page has two parts - Basic and Misc Config.; Basic
Chapter 4: Web-Based Management 34 GE-DS-242-PoE Managed Ethernet Switch User Manual System Use the System menu items to display and configure basic administrative details of the Managed Switch. Under System the following topics are provided to configure and view the system information: This section...
Page 39 - Misc Config
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 35 This page includes the following fields: OBJECT DESCRIPTION MODEL NAME Displays the system name of the Managed Switch DESCRIPTION Describes the Managed Switch MAC ADDRESS Displays the unique hardware address assigne...
Page 40 - IP Configuration
Chapter 4: Web-Based Management 36 GE-DS-242-PoE Managed Ethernet Switch User Manual This page includes the following fields: OBJECT DESCRIPTION MAC Address Age-out Time Type the number of seconds that an inactive MAC address remains in the switch's address table. The value is a multiple of 6. Defau...
Page 43 - SNMP Configuration; SNMP Overview; Sometimes called consoles, these
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 39 SNMP Configuration SNMP Overview The Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of management information between network devices. It is part of the Tran...
Page 44 - Get -- Allows the NMS to retrieve an object instance from the agent.; SNMP Community
Chapter 4: Web-Based Management 40 GE-DS-242-PoE Managed Ethernet Switch User Manual • Management information base (MIB): A MIB is a collection of managed objects residing in a virtual information store. Collections of related managed objects are defined in specific MIB modules. • Network-management...
Page 46 - Community Strings; Trap Managers
Chapter 4: Web-Based Management 42 GE-DS-242-PoE Managed Ethernet Switch User Manual Community Strings Community strings serve as passwords and can be entered as one of the following: Figure 4-11: Community strings interface This page includes the following fields: OBJECT DESCRIPTION Community Strin...
Page 47 - Firmware Upgrade; TFTP Firmware Upgrade; HTTP Firmware Upgrade
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 43 This page includes the following fields: OBJECT DESCRIPTION IP Address Enter the IP address of the trap manager. Community Enter the community string for the trap station. Firmware Upgrade It provides the functions ...
Page 48 - To open Firmware Upgrade screen, perform the following:; button of the main page, the; Choose file window; Select the firmware file, then click the; Open; button to load the file.; Configuration Backup; TFTP Restore Configuration
Chapter 4: Web-Based Management 44 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 4-14: HTTP Firmware Upgrade interface To open Firmware Upgrade screen, perform the following: 1. Click System -> Web Firmware Upgrade . 2. The Firmware Upgrade screen is displayed as in Figure 4-14. 3. Cli...
Page 49 - TFTP Backup Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 45 Figure 4-15: Configuration Restore interface This page includes the following fields: OBJECT DESCRIPTION TFTP Server IP Address Type in your TFTP server IP. Restore File Name Type in the correct file name for restor...
Page 50 - Factory Default; Reset Switch to default configuration. Click the; reset; button to restore all
Chapter 4: Web-Based Management 46 GE-DS-242-PoE Managed Ethernet Switch User Manual This page includes the following fields: OBJECT DESCRIPTION TFTP Server IP Address Type in your TFTP server IP. Backup File Name Type in the file name. Factory Default Reset Switch to default configuration. Click th...
Page 51 - System Reboot; Reboot the Switch with a software reset. Click the; reboot; button to reboot the
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 47 System Reboot Reboot the Switch with a software reset. Click the reboot button to reboot the system. Figure 4-18: System Reboot interface
Page 52 - Port Configuration
Chapter 4: Web-Based Management 48 GE-DS-242-PoE Managed Ethernet Switch User Manual Port Configuration In Port control you can configure the settings of each port to control the connection parameters, the status of each port is listed below. Figure 4-19: Port Control interface This page includes th...
Page 54 - Port Status
Chapter 4: Web-Based Management 50 GE-DS-242-PoE Managed Ethernet Switch User Manual Port Status This page displays current port configurations and operating status - it is a ports' configurations summary table. Via the summary table, you can learn the status of each port at a glance, like Port Link...
Page 55 - Port Statistics
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 51 Port Statistics The following chart provides the current statistic information, which displays the real-time packet transfer status for each port. The user might use the information to plan and implement the network...
Page 56 - Port Sniffer
Chapter 4: Web-Based Management 52 GE-DS-242-PoE Managed Ethernet Switch User Manual OBJECT DESCRIPTION Packet Dropped The counts of dropped packet. Rx Bcast Packet The counts of broadcast packet. Rx Mcast Packet The counts of multicast packet. Port Sniffer The Port Sniffer (mirroring) is a method f...
Page 58 - VLAN Configuration; VLAN Overview
Chapter 4: Web-Based Management 54 GE-DS-242-PoE Managed Ethernet Switch User Manual VLAN Configuration VLAN Overview A Virtual Local Area Network (VLAN) is a network topology configured according to a logical scheme rather than the physical layout. VLAN can be used to combine any collection of LAN ...
Page 60 - Port VLAN ID
Chapter 4: Web-Based Management 56 GE-DS-242-PoE Managed Ethernet Switch User Manual 802.1Q Tag User Priority CFI VLAN ID (VID) 3 bits 1 bits 12 bits TPID (Tag Protocol Identifier) TCI (Tag Control Information) 2 bytes 2 bytes Preamble Destination Address Source Address VLAN TAG Ethernet Type Data F...
Page 61 - Static VLAN Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 57 for tagged packets, tag-aware and tag-unaware network devices can coexist on the same network. A switch port can have only one PVID, but can have as many VID as the switch has memory in its VLAN table to store them....
Page 65 - Understanding the nomenclature of the Switch; IEEE 802.1Q Tagged and Untagged; VLAN Group Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 61 Understanding the nomenclature of the Switch • IEEE 802.1Q Tagged and Untagged Every port on an 802.1Q compliant switch can be configured as tagged or untagged. Tagged Ports with tagging enabled will put the VID num...
Page 67 - Next
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 63 Figure 4-29: 802.1Q VLAN Setting Web Page screen This page includes the following fields: OBJECT DESCRIPTION VLAN Name Use this optional field to specify a name for the VLAN. It can be up to 16 alphanumeric characte...
Page 68 - VLAN Filter; Q VLAN Port Configuration
Chapter 4: Web-Based Management 64 GE-DS-242-PoE Managed Ethernet Switch User Manual NOTE: Enable 802.1Q VLAN, the all ports on the switch belong to default VLAN, VID is 1. The default VLAN can't be deleted. VLAN Filter • 802.1Q VLAN Port Configuration This page is used for configuring the Switch po...
Page 70 - Service; tags into the customer's frames when they enter the service
Chapter 4: Web-Based Management 66 GE-DS-242-PoE Managed Ethernet Switch User Manual 802.1Q VLAN IEEE 802.1Q Tunneling (Q-in-Q) IEEE 802.1Q Tunneling (QinQ) is designed for service providers carrying traffic for multiple customers across their networks. QinQ tunneling is used to maintain customer-sp...
Page 71 - The QinQ VLAN \ QinQ Port Setting screen in Figure 4-31 appears.
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 67 In cases where a given service VLAN only has two member ports on the switch, the learning can be disabled for the particular VLAN and can therefore rely on flooding as the forwarding mechanism between the two ports....
Page 72 - To configure QinQ Port; enable
Chapter 4: Web-Based Management 68 GE-DS-242-PoE Managed Ethernet Switch User Manual OBJECT DESCRIPTION Check Configures IEEE 802.1Q tunneling (QinQ) for an uplink port to another device within the service provider network. QinQ Uplink Cancel Configures IEEE 802.1Q tunneling (QinQ) for a client acce...
Page 73 - Theory
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 69 Rapid Spanning Tree The Rapid Spanning Tree Protocol (RSTP) is an evolution of the Spanning Tree Protocol and provides for faster spanning tree convergence after a topology change. The system also supports STP and t...
Page 75 - STP Port States
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 71 When STP is enabled using the default parameters, the path between source and destination stations in a switched network might not be ideal. For instance, connecting higher-speed links to a port that has a higher nu...
Page 76 - STP Parameters; STP Operation Levels
Chapter 4: Web-Based Management 72 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 4-33: STP Port State Transitions You can modify each port state by using management software. When you enable STP, every port on every switch in the network goes through the blocking state and then transition...
Page 78 - Default Spanning-Tree Configuration; Illustration of STP
Chapter 4: Web-Based Management 74 GE-DS-242-PoE Managed Ethernet Switch User Manual Default Spanning-Tree Configuration Feature Default Value Enable state STP disabled for all ports Port priority 128 Port cost 0 Bridge Priority 32,768 NOTE: The Hello Time cannot be longer than the Max. Age. Otherwi...
Page 79 - In this example, only the default STP values are used.
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 75 Figure 4-34: Before Applying the STA Rules In this example, only the default STP values are used. Figure 4-35: After Applying the STA Rules
Page 80 - RSTP System Configuration; The user can view spanning tree information of Root Bridge.; Appl
Chapter 4: Web-Based Management 76 GE-DS-242-PoE Managed Ethernet Switch User Manual The switch with the lowest Bridge ID (switch C) was elected the root bridge, and the ports were selected to give a high port cost between switches B and C. The two (optional) Gigabit ports (default port cost = 4) on...
Page 81 - Root Bridge Information
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 77 This page includes the following fields: OBJECT DESCRIPTION RSTP mode The user must enable the RSTP function first before configuring the related parameters. Protocol Version A value used to specify the spanning tre...
Page 85 - Trunking; Static Trunk; LACP
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 81 Trunking Port trunking is the combination of several ports or network cables to expand the connection speed beyond the limits of any one single port or network cable. The Managed Switch supports two types of port tr...
Page 87 - enable the LACP function of the two switches.; Aggregator Information; LACP disabled
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 83 NOTE: A trunk group, including member ports split between two switches, has to enable the LACP function of the two switches. Aggregator Information When you setup the LACP aggregator, you will see relational informa...
Page 88 - LACP enabled; Include the member ports by clicking the; Click on the tab of
Chapter 4: Web-Based Management 84 GE-DS-242-PoE Managed Ethernet Switch User Manual This page includes the following fields: OBJECT DESCRIPTION Group Key This is a read-only column field that displays the trunk group ID. Port member This is a read-only column field that displays the members of this...
Page 90 - State Activity; Apply; button, the port state activity will change to Passive.
Chapter 4: Web-Based Management 86 GE-DS-242-PoE Managed Ethernet Switch User Manual State Activity Having set up the LACP aggregator on the tab of Aggregator Setting, you can configure the state activity for the members of the LACP trunk group. You can tick or cancel the checkbox beside the state l...
Page 92 - Forwarding and Filtering; Dynamic MAC Table; MAC Table Entries; Click
Chapter 4: Web-Based Management 88 GE-DS-242-PoE Managed Ethernet Switch User Manual Forwarding and Filtering The frames of Ethernet Packets contain a MAC address (SMAC address), which shows the MAC address of the equipment sending the frame. The SMAC address is used by the switch to automatically u...
Page 93 - Static MAC Table; Add the Static MAC Address; You can add a static MAC address in the switch MAC table here.; MAC Filtering
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 89 Static MAC Table You can add a static MAC address that remains in the switch's address table regardless of whether the device is physically connected to the switch. This saves the switch from having to re-learn a de...
Page 95 - IGMP Snooping; The; Internet Group Management Protocol (IGMP); lets host and routers share; About the Internet Group Management Protocol (IGMP) Snooping
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 91 IGMP Snooping Theory The Internet Group Management Protocol (IGMP) lets host and routers share information about multicast groups memberships. IGMP snooping is a switch feature that monitors the exchange of IGMP mes...
Page 97 - IGMP Versions 1 and 2; IGMP Message Format
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 93 IGMP Versions 1 and 2 Multicast groups allow members to join or leave at any time. IGMP provides the method for members and multicast routers to communicate when joining or leaving a multicast group. IGMP version 1 ...
Page 98 - IGMP Querier
Chapter 4: Web-Based Management 94 GE-DS-242-PoE Managed Ethernet Switch User Manual The Time-to-Live (TTL) field of query messages is set to 1 so that the queries will not be forwarded to other sub networks. IGMP version 2 introduces some enhancements such as a method to elect a multicast queried f...
Page 99 - IGMP Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 95 IGMP Configuration The Switch support IP multicast, you can enable IGMP protocol on web management's switch setting advanced page, then the IGMP snooping information displays. IP multicast addresses range are from 2...
Page 100 - QoS Configuration; Understand QOS
Chapter 4: Web-Based Management 96 GE-DS-242-PoE Managed Ethernet Switch User Manual QoS Configuration Understand QOS Quality of Service (QoS) is an advanced traffic prioritization feature that allows you to establish control over network traffic. QoS enables you to assign various grades of network ...
Page 101 - Priority Queue Service settings
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 97 QoS Configuration QoS settings allow customization of packet priority in order to facilitate delivery of data traffic that might be affected by latency problems. When CoS / 802.1p Tag Priority is applied, the Switch...
Page 102 - QoS PerPort Configuration
Chapter 4: Web-Based Management 98 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 4-56: QoS Configuration - 802.1Priority This page includes the following fields: OBJECT DESCRIPTION First Come First Service The sequence of packets sent is depend on arrival order. All High before Low The hi...
Page 104 - TOS/DSCP Configuration
Chapter 4: Web-Based Management 100 GE-DS-242-PoE Managed Ethernet Switch User Manual DiffServ Code Point (DSCP) - is the traffic prioritization bits within an IP header that are encoded by certain applications and/or devices to indicate the level of service required by the packet across a network. ...
Page 105 - TOS/DSCP Port Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 101 Figure 4-58: QoS Configuration - TOS Priority This page includes the following fields: OBJECT DESCRIPTION TOS/DSCP Enable / Disable internal traffic class ( 0~7) to map the corresponding IP DSCP value. DSCP The val...
Page 106 - Access Control List
Chapter 4: Web-Based Management 102 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 4-59 : QoS Configuration - TOS/DSCP Port Status This page includes the following fields: OBJECT DESCRIPTION Port Number Indicate port 1 to port 26. TOS/DSCP Status Enable / Disable TOS/DSCP map to 802.1p pri...
Page 107 - This page includes the following fields:; IPv4 ACL
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 103 Figure 4-60: Access Control List (ACL) Web Page screen This page includes the following fields: IPv4 ACL OBJECT DESCRIPTION DEFAULT VALUE Group ID 1 ~ 247 (max. 247 ACL group). Action Permit / Deny. Permit: Permit ...
Page 109 - In Packet Type / Binding box should select Non-IPv4
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 105 OBJECT DESCRIPTION DEFAULT VALUE Port Set this field if Packet Type is IPv4, else ignore. 0~65535 If UDP port not find in UDP field, you can direct assign number. Port Id Source port id, from 1~26, 0 means don’t ca...
Page 110 - Binding
Chapter 4: Web-Based Management 106 GE-DS-242-PoE Managed Ethernet Switch User Manual Binding Let device that has specific IP address and MAC address can use network. We can set specific IP address, MAC address, VLAN id and port id to bind, and device can cross switch if all conditions match. Use bi...
Page 111 - MAC Limit; MAC Limit Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 107 MAC Limit MAC limit allows users to set a maximum number of MAC addresses to be stored in the MAC address table. The MAC addresses chosen to be stored in MAC address table is the result of first-come-first-save pol...
Page 112 - MAC Limit Port Status; This table displays current MAC Limit status of each port.
Chapter 4: Web-Based Management 108 GE-DS-242-PoE Managed Ethernet Switch User Manual MAC Limit Port Status This table displays current MAC Limit status of each port. Figure 4-62: MAC Limit - MAC Limit Port Status This page includes the following fields: OBJECT DESCRIPTION Port Number Indicate port ...
Page 113 - Understanding IEEE 802.1X Port-Based Authentication; Device Roles
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 109 802.1X Configuration 802.1x is an IEEE authentication specification which prevents the client from accessing a wireless access point or wired switch until it provides authority, like the user name and password that...
Page 114 - Authentication server -; performs the actual authentication of the client. The
Chapter 4: Web-Based Management 110 GE-DS-242-PoE Managed Ethernet Switch User Manual Client-the device (workstation) that requests access to the LAN and switch services and responds to requests from the switch. The workstation must be running 802.1X-compliant client software such as that offered in...
Page 115 - Ports in Authorized and Unauthorized States
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 111 NOTE: If 802.1X is not enabled or supported on the network access device, any EAPOL frames from the client are dropped. If the client does not receive an EAP-request/identity frame after three attempts to start aut...
Page 116 - System Configuration
Chapter 4: Web-Based Management 112 GE-DS-242-PoE Managed Ethernet Switch User Manual In contrast, when an 802.1X-enabled client connects to a port that is not running the 802.1X protocol, the client initiates the authentication process by sending the EAPOL-start frame. When no response is received,...
Page 119 - Misc Configuration
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 115 Misc Configuration In this page, you can change the default configuration for the 802.1x standard: Figure 4-68: 802.1x Misc Configuration interface This page includes the following fields: OBJECT DESCRIPTION Quiet ...
Page 120 - Power over Ethernet Powered Device; Power Management
Chapter 4: Web-Based Management 116 GE-DS-242-PoE Managed Ethernet Switch User Manual Power Over Ethernet Providing up to 24 PoE, in-line power interface, the GE-DS-242-PoE PoE Switch can easily build a power central-controlled IP phone system, IP Camera system, AP group for the enterprise. For inst...
Page 123 - PD Classifications; provided by a compliant PD.
Chapter 4: Web-Based Management GE-DS-242-PoE Managed Ethernet Switch User Manual 119 • PD Classifications A PD may be classified by the PSE based on the classification information provided by the PD. The intent of PD classification is to provide information about the maximum power required by the P...
Page 125 - Login in the Console Interface
GE-DS-242-PoE Managed Ethernet Switch User Manual 121 Chapter 5 Console Management Login in the Console Interface To configure the system via console mode, connect a serial cable to a COM port on a PC or notebook computer and to RJ-45 type serial (console) port of the Managed Switch. The console por...
Page 126 - password after this first setup.
Chapter 5: Console Management 122 GE-DS-242-PoE Managed Ethernet Switch User Manual Figure 5-1: GE-DS-242-PoE Console Login screen NOTE: For security reasons, please change and memorize the new username and password after this first setup. Username Max: 6, Min: 1 characters. Password Max: 6, Min: 1 ...
Page 127 - Configure IP address; Show the current IP address
Chapter 5: Console Management GE-DS-242-PoE Managed Ethernet Switch User Manual 123 Configure IP address The GE-DS-242-PoE Managed Switch is shipped with default IP address as follows. IP Address : 192.168.0.100 Subnet Mask : 255.255.255.0 To check the current IP address or modify a new IP address f...
Page 129 - Commands Level
Chapter 5: Console Management GE-DS-242-PoE Managed Ethernet Switch User Manual 125 Commands Level The following table lists the CLI commands and descriptions. Modes Access Method Prompt Exit Method About This Model User EXEC Begin a session with your switch. switch> Enter logout or quit. The use...
Page 131 - Operation Notice; configure
GE-DS-242-PoE Managed Ethernet Switch User Manual 127 Chapter 6 Command Line Interface Operation Notice To enter the "configuration" mode, you need to be in the privileged mode, and then types in the command configure : Switch# configure Switch (config) #
Page 132 - Command Line Editing; Key Function; Command Help; System Commands
Chapter 6: Command Line Interface 128 GE-DS-242-PoE Managed Ethernet Switch User Manual Command Line Editing Key Function <Ctrl>-B ; ← Moves the cursor back one character. <Ctrl>-D Deletes the character at the cursor. <Ctrl>-E Jumps to the end of the current command line. <Ctrl&...
Page 133 - Switch Static Configuration; Port Configuration and show status; Turn the port state on or off.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 129 Switch Static Configuration Port Configuration and show status port state Description: Turn the port state on or off. Syntax: port state <on | off> [< port-list >] Parameters: <port-list> specif...
Page 134 - Enable or disable port flow control.
Chapter 6: Command Line Interface 130 GE-DS-242-PoE Managed Ethernet Switch User Manual port flow Description: Enable or disable port flow control. Syntax: port flow <enable | disable> <enable | disable> [< port-list >] Parameters: The first <enable | disable> enables or disa...
Page 139 - Trunk Configuration; Trunking Commands; Add a new trunk group.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 135 Trunk Configuration Trunk allows the switch to combine ports so that they function like a single high-speed link. It can be used to increase the bandwidth to some devices to provide a high-speed link. For example...
Page 140 - LACP Commands
Chapter 6: Command Line Interface 136 GE-DS-242-PoE Managed Ethernet Switch User Manual Lacp Description: Specifies the added trunk group to be LACP enabled. Syntax: lacp no-lacp specifies the added trunk group to be LACP disabled. Parameters: <port-list> specifies the ports to be set. <act...
Page 141 - Show LACP aggregator information.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 137 no lacp system-priority Description: Set LACP system priority to the default value 32768. show lacp status Description: Show LACP enable/disable status and system priority. show lacp Description: Show LACP inform...
Page 142 - Virtual LANs
Chapter 6: Command Line Interface 138 GE-DS-242-PoE Managed Ethernet Switch User Manual VLAN Configuration Virtual LANs A Virtual LAN (VLAN) is a logical network group that limits the broadcast domain. It allows you to isolate network traffic so only members of the VLAN receive traffic from the same...
Page 143 - You cannot delete the default VLAN group in 802.1Q VLAN mode.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 139 The difference between a port-based VLAN and a tag-based VLAN is that the tag-based VLAN truly divided the network into several logically connected LANs. Packets rambling around the switches can be forwarded more...
Page 144 - Advanced 802.1Q VLAN Configuration; Ingress filters configuration; Add or edit VLAN entry.; NAME; specifies the VLAN group name.
Chapter 6: Command Line Interface 140 GE-DS-242-PoE Managed Ethernet Switch User Manual Advanced 802.1Q VLAN Configuration Ingress filters configuration When a packet was received on a port, you can govern the switch to drop it or not if it is an untagged packet. Furthermore, if the received packet ...
Page 145 - specifies the CPU port belong this VLAN group.; LIST; specifies the ports to be set to VLAN members.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 141 (cpu-port|no-cpu-port) specifies the CPU port belong this VLAN group. LIST specifies the ports to be set to VLAN members. [LIST] specifies the ports to be set to tagged members. If not entered, all members set to...
Page 147 - Show port default VLAN id.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 143 show vlan static Description: Show static VLAN entry information. show vlan pvid Description: Show port default VLAN id. Syntax: show vlan pvid [LIST] Parameters: [LIST] specifies the ports to be showed. If not e...
Page 149 - Set ingress filter rules.; ) specifies the non-members packet will be forwarded or not. If set; ) specifies the untagged frame will be dropped or not. If set enable,
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 145 vlan filter Description: Set ingress filter rules. Syntax: vlan filter (enable | disable) (enable | disable) LIST Parameters: ( enable | disable ) specifies the non-members packet will be forwarded or not. If set...
Page 152 - Control Packets; Disable
Chapter 6: Command Line Interface 148 GE-DS-242-PoE Managed Ethernet Switch User Manual broadcast select Description: Select the Broadcast storm filter packet type: Unicast/Multicast : Flood unicast/multicast filter Control Packets : Control packets filter IP multicast : IP multicast packets filter ...
Page 153 - Administration Configuration; Change Username / Password; no hostname; Set or remove username and password for manager or operator.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 149 Administration Configuration Change Username / Password hostname Description: Set switch name. Syntax: hostname < name-str > Parameters: < name-str > specifies the switch name. If you would like to ha...
Page 154 - Set IP address and subnet mask.
Chapter 6: Command Line Interface 150 GE-DS-242-PoE Managed Ethernet Switch User Manual IP Configuration User can configure the IP setting and fill in a new value. ip address Description: Set IP address and subnet mask. Syntax: ip address < ip-addr > < ip-mask > ip default-gateway Descri...
Page 155 - Set switch as dhcp client, it can get ip from dhcp server.; Reboot switch
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 151 dhcp Description: Set switch as dhcp client, it can get ip from dhcp server. NOTE: If you set this command, the switch will reboot. show dhcp Description: Show dhcp enable/disable. Reboot switch boot Description:...
Page 156 - TFTP Update Firmware; Download firmware from TFTP server.; Restore Configure File; flash; > specifies the IP address of the TFTP server.
Chapter 6: Command Line Interface 152 GE-DS-242-PoE Managed Ethernet Switch User Manual TFTP Update Firmware copy tftp firmware Description: Download firmware from TFTP server. Syntax: copy tftp firmware < ip-addr > < remote-file > Parameters: < ip-addr > specifies the IP address o...
Page 157 - Backup Configure File
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 153 Backup Configure File copy <running – config | flash> tftp Description: Send configuration to the TFTP server. If you want to save the configuration in a text file of CLI commands, use the keywordrunning-co...
Page 158 - MAC limit; Set port MAC limit value, 0 to turn off MAC limit of port.
Chapter 6: Command Line Interface 154 GE-DS-242-PoE Managed Ethernet Switch User Manual MAC limit MAC limit allows users to set a maximum number of MAC addresses to be stored in the MAC address table. The MAC addresses chosen to be stored in MAC address table is the result of first-come-first-save p...
Page 159 - Port Mirroring Configuration; The default Port Monitoring setting is disabled.; rx; specifies monitoring rx only.; tx; specifies monitoring tx only.; both; specifies monitoring both rx and tx.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 155 Port Mirroring Configuration Port monitoring is a feature to redirect the traffic occurred on every port to a designated monitoring port on the switch. With this feature, the network administrator can monitor and...
Page 160 - Quality of Service
Chapter 6: Command Line Interface 156 GE-DS-242-PoE Managed Ethernet Switch User Manual Quality of Service There are four transmission queues with different priorities in the Managed Switch: Highest, SecHigh, SecLow and Lowest. The Managed Switch will take packets from the four queues according to i...
Page 161 - highweight
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 157 priority packets sent before one lower priority packet is sent. For example, 8 Highest:4 second-high means that the switch sends 8 highest-priority packets before sending 4 second-high priority packets. • QoS lev...
Page 162 - Per Port Priority
Chapter 6: Command Line Interface 158 GE-DS-242-PoE Managed Ethernet Switch User Manual show qos Description: Show QoS configurations, including802.1p priority, priority level. e.g. Switch(config)# show qos QoS configurations: QoS mode: weighted round robin Highest weight: 8 Second High weight: 4 Se...
Page 163 - MAC Address Configuration; must be
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 159 MAC Address Configuration clear mac-address-table Description: Clear all dynamic MAC address table entries. mac-address-table static Description: Set static unicast or multicast MAC address. If multicast MAC addr...
Page 166 - Set spanning tree forward delay used, in seconds.
Chapter 6: Command Line Interface 162 GE-DS-242-PoE Managed Ethernet Switch User Manual STP/RSTP Commands [no] spanning-tree Description: Enable or disable spanning-tree. spanning-tree forward-delay Description: Set spanning tree forward delay used, in seconds. Syntax: spanning-tree forward-delay &l...
Page 167 - Set spanning tree maximum age, in seconds.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 163 spanning-tree maximum-age Description: Set spanning tree maximum age, in seconds. Syntax: spanning-tree maximum-age <6-40> Parameters: <6-40> specifies the maximum age, in seconds. Default value is 20...
Page 168 - Set spanning tree port priority.
Chapter 6: Command Line Interface 164 GE-DS-242-PoE Managed Ethernet Switch User Manual spanning-tree port priority Description: Set spanning tree port priority. Syntax: spanning-tree port priority <0-240> [<port-list>] Parameters: <0-240> specifies the port priority. The value mus...
Page 169 - Change spanning tree protocol version.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 165 spanning-tree protocol version Description: Change spanning tree protocol version. Syntax: spanning-tree protocol-version <stp | rstp> Parameters: stp specifies the original spanning tree protocol (STP,802....
Page 170 - Disable or enable spanning tree protocol on this port.
Chapter 6: Command Line Interface 166 GE-DS-242-PoE Managed Ethernet Switch User Manual [no] spanning-tree port non-stp Description: Disable or enable spanning tree protocol on this port. Syntax: [no] spanning-tree port non-stp [<port-list>] Parameters: <port-list> specifies the ports to...
Page 171 - SNMP; System Options; Set agent system name string.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 167 SNMP Any Network Management running the simple Network Management Protocol (SNMP) can be management with the switch. System Options Snmp /no snmp Description: Enable or disable SNMP. Show snmp status Description:...
Page 172 - Set agent location string.
Chapter 6: Command Line Interface 168 GE-DS-242-PoE Managed Ethernet Switch User Manual Snmp system-location Description: Set agent location string. Syntax: snmp system-location <location-str> Parameters: <location-str> specifies the location string. e.g. snmp system-location office Snmp...
Page 173 - Set SNMP community string.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 169 Community Strings snmp community Description: Set SNMP community string. Syntax: snmp community <read-sysinfo-only | read-all-only | read-write-all><community-str> Parameters: <community-str> sp...
Page 174 - Remove trap receiver IP address and port number.
Chapter 6: Command Line Interface 170 GE-DS-242-PoE Managed Ethernet Switch User Manual Trap Managers snmp trap Description: Set SNMP trap receiver IP address, community string, and port number. Syntax: snmp trap <ip-addr> [<community-str>] [<1..65535>] Parameters: <ip-addr> ...
Page 175 - IGMP; Enable/disable IGMP snooping CrossVLAN
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 171 IGMP The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol (IP) suite. igmp Description: Enable/disable IGMP snooping. Syntax: [no] igmp igmp fastleave Description: Enable...
Page 176 - Enable/disable IGMP snooping debugging output.
Chapter 6: Command Line Interface 172 GE-DS-242-PoE Managed Ethernet Switch User Manual igmp debug Description: Enable/disable IGMP snooping debugging output. Syntax: [no] igmp debug show igmp Description: Show IGMP snooping information. Syntax: show igmp <status | router | groups | table> Par...
Page 177 - Set radius server IP, port number, and accounting port number.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 173 802.1x Protocol dot1x Description: Enable or disable 802.1x. Syntax: [no] dot1x radius-server host Description: Set radius server IP, port number, and accounting port number. Syntax: radius-server host <ip-add...
Page 180 - specifies forced unauthorized.; au; specifies authorization.
Chapter 6: Command Line Interface 176 GE-DS-242-PoE Managed Ethernet Switch User Manual show dot1x Description: Show 802.1x information, quiet period, Tx period, supplicant timeout, server timeout, maximum requests, and re-auth period. dot1x port Description: Set 802.1x per port information. Syntax:...
Page 181 - Ipv4 ACL commands; Reset the ACL group count.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 177 Access Control List Packets can be forwarded or dropped by ACL rules include Ipv4 or non-Ipv4. The Managed Switch can be used to block packets by maintaining a table of packet fragments indexed by source and dest...
Page 182 - Show ACL group information.
Chapter 6: Command Line Interface 178 GE-DS-242-PoE Managed Ethernet Switch User Manual show acl Description: Show ACL group information. Syntax: show acl [<1-220>] Parameters: <1-220> specifies the group id, null means all valid groups. e.g. Switch(config)# show acl 1 Group Id : 1 Switc...
Page 183 - Add or edit ACL group for Ipv4.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 179 acl (add|edit) <1-220> (permit|deny) <0-4094> ipv4 <0-255> Description: Add or edit ACL group for Ipv4. Syntax: acl (add|edit) <1-220> (permit|deny) <0-4094> ipv4 <0-255> A.B.C...
Page 184 - Non-Ipv4 ACL commands
Chapter 6: Command Line Interface 180 GE-DS-242-PoE Managed Ethernet Switch User Manual acl (add|edit) <1-220> (qosvoip) <0-4094> Description: Add or edit ACL group for Ipv4. Syntax: acl (add|edit) <1-220> (qosvoip) <0-4094> <0-7> <0-1F> <0-1F> <0-FF> ...
Page 185 - specifies the operation.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 181 acl (add|edit) <1-220> (permit|deny) <0-4094> nonipv4 <0-65535> Description: Add or edit ACL group for non-Ipv4. Syntax: acl (add|edit) <1-220> (permit|deny) <0-4094> nonipv4 <0-6...
Page 186 - SIP/SMAC binding commands; Delete Binding group.
Chapter 6: Command Line Interface 182 GE-DS-242-PoE Managed Ethernet Switch User Manual Binding Let device that has specific IP address and MAC address can use network. We can set specific IP address, MAC address, VLAN id and port id to bind, and device can cross switch if all conditions match. SIP/...
Page 187 - Show Binding group information.
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 183 show bind Description: Show Binding group information. Syntax: show bind [<1-220>] Parameters: <1-220> specifies the group id, null means all valid groups. e.g. show bind 1 bind add Description: Add B...
Page 188 - Power over Ethernet Commands; Display System PoE status; Show System Power over Ethernet information; Command Level
Chapter 6: Command Line Interface 184 GE-DS-242-PoE Managed Ethernet Switch User Manual Power over Ethernet Commands show poe Show System Power over Ethernet information show poe status Show PoE port information poe temperature-protection Enabling or disabling the PoE power supply over temperature p...
Page 189 - Show per PoE port information; Global Configuration
Chapter 6: Command Line Interface GE-DS-242-PoE Managed Ethernet Switch User Manual 185 show poe status Description: Show per PoE port information Command Level Global Configuration Syntax: show poe status [<port-list>] Parameters: <port-list> specifies the ports to be set. If not entere...
Page 190 - Configure PoE Over Temperature Protection; Configure PoE over temperature protection to enable or disable; Configure PoE - System; Configure System PoE power limit mode information
Chapter 6: Command Line Interface 186 GE-DS-242-PoE Managed Ethernet Switch User Manual Configure PoE Over Temperature Protection poe temperature-protection enable[x4] Description: Configure PoE over temperature protection to enable or disable Command Level Global Configuration Syntax: poe temperatu...
Page 192 - Enabling or disabling the port POE injects function.
Chapter 6: Command Line Interface 188 GE-DS-242-PoE Managed Ethernet Switch User Manual Configure PoE -- Port poe enable Description: Enabling or disabling the port POE injects function. Command Level: Global Configuration Syntax: poe enable [<port-list>] [no] poe enable [<port-list>] Pa...
Page 195 - Address Table
GE-DS-242-PoE Managed Ethernet Switch User Manual 191 Chapter 7 Switch Operation Address Table The 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, et...
Page 198 - PoE System Architecture
Chapter 8: Power Over Ethernet Overview 194 GE-DS-242-PoE Managed Ethernet Switch User Manual PoE System Architecture The specification of PoE typically requires two devices: the Powered Source Equipment (PSE) and the Powered Device (PD). The PSE is either an End-Span or a Mid-Span, while the PD is ...
Page 199 - When to install PoE?; Consider the following scenarios:
Chapter 8: Power Over Ethernet Overview GE-DS-242-PoE Managed Ethernet Switch User Manual 195 The data pairs are used. Since Ethernet pairs are transformer coupled at each end, it is possible to apply DC power to the center tap of the isolation transformer without upsetting the data transfer. In thi...
Page 200 - Microsemi /PowerDsine; The PoE Provision Process
Chapter 8: Power Over Ethernet Overview 196 GE-DS-242-PoE Managed Ethernet Switch User Manual http://www.poweroverethernet.com/articles.php?article_id=52 Microsemi /PowerDsine http://www.microsemi.com/PowerDsine/ Linear Tech http://www.linear.com/ The PoE Provision Process While adding PoE support t...
Page 201 - Line Detection
Chapter 8: Power Over Ethernet Overview GE-DS-242-PoE Managed Ethernet Switch User Manual 197 Line Detection Before power is applied, safety dictates that it must first be ensured that a valid PD is connected to the PSE's output. This process is referred to as "line detection", and involves ...
Page 202 - Operation
Chapter 8: Power Over Ethernet Overview 198 GE-DS-242-PoE Managed Ethernet Switch User Manual Operation During normal operation, the PSE provides 44-57 VDC, able to support a minimum of 15.4 watts power. Power Overloads The IEEE 802.3af standard defines handling of overload conditions. In the event ...
Page 206 - While IP Address be changed or forgotten admin password; at the front panel about
Chapter 9: Troubleshooting 202 GE-DS-242-PoE Managed Ethernet Switch User Manual 4. Make sure the cable is the right type 5. Turn off the power. After a while, turn on power again 100Base-TX port link LED is lit, but the traffic is irregular Solution: Check that the attached device is not set to ded...