Page 2 - NOTICE; FCC NOTICE
NOTICE Cabletron Systems reserves the right to make changes in specifications and other informa-tion contained in this document without prior notice. The reader should in all cases consultCabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software desc...
Page 4 - UNITED STATES GOVERNMENT RESTRICTED RIGHTS
EXCLUSION OF WARRANTY AND DISCLAIMER OF LIABILITY 1. EXCLUSION OF WARRANTY. Except as may be specifically provided by Cabletron inwriting, Cabletron makes no warranty, expressed or implied, concerning the Program(including its documentation and media). CABLETRON DISCLAIMS ALL WARRANTIES, OTHER THAN ...
Page 5 - DECLARATION OF CONFORMITY
DECLARATION OF CONFORMITY Application of Council Directive(s): 89/336/EEC73/23/EEC Manufacturer’s Name: Cabletron Systems, Inc. Manufacturer’s Address: 35 Industrial WayPO Box 5005Rochester, NH 03867 European Representative Name: Mr. J. Solari European Representative Address: Cabletron Systems Limit...
Page 7 - TABLE OF CONTENTS
9032579-03 Table of Contents i TABLE OF CONTENTS PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Preface i Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 11 - PREFACE; Purpose; Working knowledge of Ethernet LANs; Conventions; This section describes the conventions used in this guide.; Message Formats; Two types of messages, identified by icons, appear in the text:; A note informs you of special circumstances.
9032579-03 Preface i PREFACE Purpose This guide provides information about the features and applications of the ELS100-24TX switch as well as instructions for configuring and monitoring the switch. Audience This guide is intended for Ethernet local area network (LAN) administrators and Management In...
Page 12 - Keyboard Entries; courier font
ii Preface ELS100-24TX Keyboard Entries This guide uses the following conventions for keyboard entries: • When you read “enter,” type the text and press the [Enter] key. • Example: Enter the Gateway IP address and press the [Enter] key. • When you read “select,” type the letter associated with the p...
Page 13 - Organization
9032579-03 Preface iii Organization Chapter 1. Product Overview: Describes the features of the switch, front and rear panel components and application examples. Chapter 2. Installation: Describes the content of your switch shipment, lists site requirements, and provides mounting instructions. Instru...
Page 14 - Getting Help
iv Preface ELS100-24TX Getting Help If you need additional support for this device, or if you have any questions, comments, or suggestions concerning this manual, contact the Cabletron Systems Global Call Center: Before calling the Cabletron Systems Global Call Center, be prepared to provide the fol...
Page 15 - Description
9032579-03 Product Overview 1 1. PRODUCT OVERVIEW Description This installation and user guide describes the Cabletron Systems ELS100-24TX Ethernet switch. This unit is IEEE 802.1D-compliant and supports 24 IEEE 802.3u 100Base-TX Fast Ethernet ports. Each port can alternatively operate as an IEEE 80...
Page 17 - Front Panel; Name
9032579-03 Product Overview 3 Front Panel Figure 1-1 shows the front panel of the ELS100-24TX. Table 1-1 defines the ELS100-24TX front panel components. Figure 1-1. ELS100-24TX Front Panel Table 1-1. Front Panel Components Name Function Ports 1-24 LEDs Indicates Link, Activity, Speed and Duplex info...
Page 18 - Figure 1-2. Port LEDs Default Configuration
4 Product Overview ELS100-24TX Figure 1-2 shows the Link and Activity port LEDs for 24 10Base-T/100Base-TX ports (default configuration). Pressing the front panel LED mode button changes the operation of these LEDs to 100M Speed and Full Duplex, as shown in Figure 1-3. The port LEDs are grouped to t...
Page 19 - Rear Panel
9032579-03 Product Overview 5 Table 1-2. Port LEDs Defined Rear Panel Figure 1-4 shows the ELS100-24TX rear panel and Table 1-3 defines the rear panel components. Figure 1-4. ELS100-24TX Rear Panel Table 1-3. Rear Panel Components Name Function Default Configuration Link LED On: Indicates a valid co...
Page 20 - Feature Summaries; Spanning Tree Protocol
6 Product Overview ELS100-24TX Feature Summaries The following summaries provide a brief description of ELS100-24TX features in areas such as standards compliance, functionality, performance, and options. IEEE 802.1D Bridge The ELS100-24TX switch is fully compliant with IEEE 802.1D transparent bridg...
Page 21 - Software Download
9032579-03 Product Overview 7 Software Download The ELS100-24TX switch supports the industry-standard Trivial File Transfer Protocol (TFTP) for downloading software to the switch. All switch software is stored in a 2 MB sectored flash ROM. The download feature allows you to easily install software u...
Page 22 - RMON
8 Product Overview ELS100-24TX RMON RMON (Remote Monitoring) is a facility used to manage networks remotely while providing multi-vendor interoperability between monitoring devices and management stations. RMON is defined by an SNMP MIB. This MIB is divided into nine different groups, each gathering...
Page 23 - Broadcast Throttling
9032579-03 Product Overview 9 ELS100-24TX switch automatically adjusts to the network device’s communication settings. Auto-negotiation is configurable in the Port Configuration Menu of the console menus or via SNMP. Broadcast Throttling The ELS100-24TX has the capability to throttle (or limit) the ...
Page 24 - Flow Control; Application Examples; Client/Server Network
10 Product Overview ELS100-24TX Flow Control Flow control allows you to manage network traffic during congestion periods and to prevent the loss of packets when port buffer thresholds are exceeded. Flow control also serves to deny access to additional traffic that could add to a congestion condition...
Page 25 - Client/Server Network Application
9032579-03 Product Overview 11 Client/Server Network Application To improve workstation performance in a client/server environment, the ELS100-24TX switch can be configured to provide 200 Mbps full duplex Fast Ethernet connections to servers by connecting each to a dedicated switch port (Figure 1-5)...
Page 26 - Local Backbone Application
12 Product Overview ELS100-24TX Local Backbone Application The ELS100-24TX switch can be used in a local backbone application, connecting network segments together and providing file-server access (Figure 1-6). Workgroup hubs are provided with a single connection to the switch while servers are put ...
Page 27 - Inspecting Your Shipment
9032579-03 Installation 13 2. INSTALLATION Inspecting Your Shipment When you receive the shipment of your switch, check the package contents and make sure you have the following items: • ELS100-24TX Ethernet switch • Mounting ears and mounting screws • Power cord • This document Site Requirements Be...
Page 28 - Mounting the Switch on a Table or Shelf
14 Installation ELS100-24TX Mounting the Switch on a Table or Shelf Mount the switch on a table or shelf in a position which allows access to the front panel RJ-45 ports, visibility of the port LEDs, and access to the power connector. Make sure that the mounting surface can safely support the switch...
Page 29 - Mounting the Switch on a Wall; Mount the switch to the wall using appropriate screws.; Figure 2-1. Mounting the Switch on a Wall
9032579-03 Installation 15 Mounting the Switch on a Wall The switch ships with two (2) multi-position mounting ears and four (4) mounting screws. Figure 2-1 shows the orientation of the mounting ears for attaching the ears to the switch for a wall mount application. Be sure that the wall surface can...
Page 30 - Mounting the Switch in a Rack; Figure 2-2. Mounting the Switch in a Rack
16 Installation ELS100-24TX Mounting the Switch in a Rack The switch ships with two (2) multi-position mounting ears and four (4) mounting screws. Figure 2-2 shows the orientation of the mounting ears for attaching the ears to the switch for a rack mount application. Mount the switch with the front ...
Page 31 - Connecting a Terminal to the Console Port; Figure 2-3. Connecting a Terminal to the Console Port; From your terminal, start the terminal emulation program.
9032579-03 Installation 17 Connecting a Terminal to the Console Port The console port is a serial RS-232 interface port that enables a connection to a terminal for performing switch monitoring and configuration functions. The terminal may be a PC or workstation running terminal emulation software, o...
Page 32 - Powering the Switch; To supply power to the switch, do the following:; Figure 2-4. Connecting the Power Cord to the Switch; Turn on the power switch.
18 Installation ELS100-24TX Powering the Switch To supply power to the switch, do the following: 1. Connect the power cord to the switch and to a grounded three-prong wall outlet (Figure 2-4). See Appendix A, “Power Cord Set Requirements,” for more information regarding specific international power ...
Page 34 - Connecting Network Cables; Network cable must comply with the following requirements:
20 Installation ELS100-24TX Connecting Network Cables Network cable must comply with the following requirements: • Category 3 or 5 Unshielded Twisted Pair (UTP) for ports running 10Base-T • Category 5 UTP for ports running 100Base-TX • Maximum length for UTP connections: 100m (328 ft.) RJ-45 Connect...
Page 35 - Overview; Menu Identification (includes model number)
9032579-03 ELS100-24TX User Interface 21 3. ELS100-24TX USER INTERFACE Overview When you have connected a terminal to the console port, or used Telnet to access the switch over the network, access is gained to the console menus. These menus allow you to reconfigure the switch from its factory defaul...
Page 36 - User Access; To use the console menus, do the following:
22 ELS100-24TX User Interface ELS100-24TX User Access There are two modes of access to the user interface: READ-ONLY and READ/WRITE. READ-ONLY access allows you to view switch infor-mation, but not modify any operating parameters. READ/WRITE access allows you to both read and modify switch informati...
Page 37 - Factory Defaults; Parameter
9032579-03 ELS100-24TX User Interface 23 Factory Defaults Table 3-1 lists the factory default settings for the switch configuration parameters. Each of these parameters can be changed via the console menus or Telnet. Table 3-1. Factory Default Settings Parameter Default Value Active Aging Time 300 A...
Page 38 - Menu Hierarchy
24 ELS100-24TX User Interface ELS100-24TX Menu Hierarchy Figure 3-2 shows the ELS100-24TX switch user interface menu hierarchy. Figure 3-2. ELS100-24TX User Interface Menu Hierarchy S y s t e mC o n f i g u r a t i o nM e n u S N M P C o n f i g u r a t i o n M e n uS y s t e m N a m eS y s t e m L ...
Page 39 - Main Menu; Selection
9032579-03 ELS100-24TX User Interface 25 Main Menu The Main Menu is the first screen seen after successfully logging in to the system. Figure 3-3 shows the Main Menu and the accompanying table describes the Main Menu. Figure 3-3. Main Menu MAIN MENU Access Control: READ/WRITE a. System Configuration...
Page 40 - System Configuration Menu
26 ELS100-24TX User Interface ELS100-24TX System Configuration Menu The System Configuration Menu enables modification of system-level switch configuration parameters. Select a from the Main Menu to view the System Configuration Menu. Figure 3-4 shows the System Configuration Menu and the accompanyi...
Page 41 - SNMP Configuration Menu
9032579-03 ELS100-24TX User Interface 27 SNMP Configuration Menu The SNMP Configuration Menu allows you to modify SNMP-related configuration parameters. Select a from the System Configuration Menu to view the SNMP Configuration Menu. Figure 3-5 shows the SNMP Configuration Menu and accompanying tabl...
Page 42 - Switch Configuration Menu
28 ELS100-24TX User Interface ELS100-24TX Switch Configuration Menu The Switch Configuration Menu allows you to modify switching-related configuration parameters. Select b from the Main Menu to view the Switch Configuration Menu. Figure 3-6 shows the Switch Configuration Menu and the accompanying ta...
Page 43 - Forwarding Table Configuration Menu; Figure 3-7. Forwarding Table Configuration Menu; continued on next page; Field
9032579-03 ELS100-24TX User Interface 29 Forwarding Table Configuration Menu The Forwarding Table Configuration Menu allows you to view and modify forwarding table parameters. The MAC address of each forwarding table entry is displayed along with its type, disposition, and associated port number. Se...
Page 44 - Forwarding Table Configuration Menu (continued)
30 ELS100-24TX User Interface ELS100-24TX Forwarding Table Configuration Menu (continued) Selection Description Next Page Displays the next page of the forwarding table. Previous Page Displays the previous page of the forwarding table. First Page Displays the first page (top) of the forwarding table...
Page 45 - Spanning Tree Configuration Menu; Figure 3-8. Spanning Tree Configuration Menu
9032579-03 ELS100-24TX User Interface 31 Spanning Tree Configuration Menu The Spanning Tree Configuration Menu allows you to view and modify Spanning Tree parameters. Select b from the Switch Configuration Menu to view the Spanning Tree Configuration Menu. A letter identifies selections that can be ...
Page 46 - Spanning Tree Configuration Menu (continued)
32 ELS100-24TX User Interface ELS100-24TX Spanning Tree Configuration Menu (continued) Selection Description Spanning Tree Protocol Enable Allows you to enable (Yes) or disable (No) the global Spanning Tree operation on the switch. Port Configuration Menu Provides access to the Spanning Tree Port Co...
Page 47 - Spanning Tree Port Configuration Menu; Figure 3-9. Spanning Tree Port Configuration Menu
9032579-03 ELS100-24TX User Interface 33 Spanning Tree Port Configuration Menu The Spanning Tree Port Configuration Menu allows you to view Spanning Tree Configuration information for all of the ports in a table format. Select b from the Spanning Tree Configuration Menu to view the Spanning Tree Por...
Page 48 - n Configuration Menu. Figure 3-10 shows the; Figure 3-10. Spanning Tree Port Configuration Menu
34 ELS100-24TX User Interface ELS100-24TX Spanning Tree Port #n Configuration Menu The Spanning Tree Port #n Configuration Menu allows you to view Spanning Tree Port Configuration information for an individual port. Select a from the Spanning Tree Port Configuration Menu to view the Spanning Tree Po...
Page 49 - VLAN Configuration Menu
9032579-03 ELS100-24TX User Interface 35 VLAN Configuration Menu The VLAN Configuration Menu allows you to configure the operation of virtual LANs (VLANs) in the switch. Select c from the Switch Configuration Menu to view the VLAN Configuration Menu. Figure 3-11 shows the VLAN Configuration Menu and...
Page 50 - VLAN Menu
36 ELS100-24TX User Interface ELS100-24TX VLAN Menu The VLAN Menu displays the configuration of VLANs in the switch and allows access to the VLAN #n Configuration Menu to create and configure VLANs. Select b from the VLAN Configuration Menu to view the VLAN Menu. Figure 3-12 shows the VLAN Menu and ...
Page 51 - VLAN #n Configuration Menu
9032579-03 ELS100-24TX User Interface 37 VLAN #n Configuration Menu The VLAN #n Configuration Menu allows you to configure a name for a specific VLAN, add or remove a port in the VLAN, and add or remove an egress port in the VLAN. Select c from the VLAN Menu to view the VLAN #n Configuration Menu. F...
Page 52 - VLAN Port Menu; Figure 3-14. VLAN Port Configuration Menu
38 ELS100-24TX User Interface ELS100-24TX VLAN Port Menu The VLAN Port Menu displays a table of VLAN configuration information on a per port basis and allows you to modify the VLAN Port Type. Select c from the VLAN Configuration Menu to view the VLAN Port Menu. Figure 3-14 shows the VLAN Port Menu a...
Page 53 - Class of Service Configuration Menu; Figure 3-15. Class of Service Configuration Menu
9032579-03 ELS100-24TX User Interface 39 Class of Service Configuration Menu The Class of Service Configuration Menu allows you to configure Class of Service settings for the system as well as to set the Class of Service for VLAN tagged frames. Select d from the Switch Configuration Menu to view the...
Page 54 - Port Priority Menu; Figure 3-16. Port Priority Configuration Menu
40 ELS100-24TX User Interface ELS100-24TX Port Priority Menu The Port Priority Menu allows you to modify and display a table which shows priority queuing configuration information on a per port basis. Select c from the Class of Service Configuration Menu to view the Port Priority Configuration Menu....
Page 57 - Switch Statistics Screen; Field Description
9032579-03 ELS100-24TX User Interface 43 Switch Statistics Screen The Switch Statistics Screen provides a summary display of port-level statistics, and provides access to the Port Statistics screens. You can also clear or refresh the statistics. Select d from the Main Menu to view the Switch Statist...
Page 58 - Switch Summary Screen
44 ELS100-24TX User Interface ELS100-24TX Switch Summary Screen The Switch Summary Screen allows you to display sum total statistics for all ports of the switch. You can also clear or refresh the statistics. Select s from the Switch Statistics Screen to view the Switch Summary screen. Figure 3-20 sh...
Page 59 - Port Statistics Screen
9032579-03 ELS100-24TX User Interface 45 Port Statistics Screen The Port Statistics Screen allows you to display statistics for each port on the switch. Many of these statistics correspond to the Statistics group of RMON. You can also refresh or clear the statistics. Select s from the Switch Statist...
Page 61 - General Information Screen
9032579-03 ELS100-24TX User Interface 47 General Information Screen The General Information Screen allows you to view general system information. Select e from the Main Menu to view the General Information Screen. Figure 3-22 shows the General Information Screen and the accompanying table describes ...
Page 62 - Download Software Menu
48 ELS100-24TX User Interface ELS100-24TX Download Software Menu The Download Software Menu allows you to set up and initiate a software download. Select f from the Main Menu to view the Download Software Menu. Figure 3-23 shows the Download Software Menu and the accompanying table describes the Dow...
Page 64 - Reset; Select j from the Main Menu to view the Reset screen.; The following message prompt displays:; Select either a to confirm the process or x to cancel the process.
50 ELS100-24TX User Interface ELS100-24TX Reset The Reset screen allows you to restore the latest saved configuration or system defaults if the system configuration has not been saved. To reset the switch, do the following: 1. Select j from the Main Menu to view the Reset screen. The following messa...
Page 65 - Common Tasks
9032579-03 Configuring & Monitoring The Switch 51 4. CONFIGURING & MONITORING THE SWITCH Common Tasks The switch console menus allow you to modify default switch settings and configure the switch for network management. They also allow you to monitor switch performance and status. See Sectio...
Page 66 - Setting Password Protection; To assign an IP address to the switch, do the following:
52 Configuring & Monitoring The Switch ELS100-24TX Setting Password Protection The ELS100-24TX switch is factory-configured with access rights to the console menus set to READ/WRITE. This setting allows anyone to use the console menus to modify any operational parameter. To protect the configura...
Page 67 - Checking Network Configuration Status
9032579-03 Configuring & Monitoring The Switch 53 Checking Network Configuration Status To check connection status for the network, do the following: 1. Select Port Menu from the Main Menu. If a network cable is properly connected to a port, the Link Status for the port reads CONNECTED. If no ca...
Page 68 - Viewing Switch Statistics
54 Configuring & Monitoring The Switch ELS100-24TX 5. Select one or more Trap Destination entries from the menu and enterthe appropriate IP addresses. 6. For each trap destination entered, a corresponding community nameshould be entered. Viewing Switch Statistics To view switch statistics, do th...
Page 69 - Downloading a Software Upgrade; Software can be downloaded to the switch in two ways:; Downloading Via the Serial Port; To download switch software via the serial port, do the following:
9032579-03 Configuring & Monitoring The Switch 55 Downloading a Software Upgrade You can upgrade the operational software in the ELS100-24TX switch without physically opening the switch or being in the same location. The software storage sector in the flash memory of the switch is reprogrammable...
Page 70 - Downloading Via TFTP; To download switch software via TFTP, do the following:; Configuring Spanning Tree Parameters
56 Configuring & Monitoring The Switch ELS100-24TX Downloading Via TFTP To perform a TFTP download, you must first configure the ELS100-24TX switch. This consists of programming the switch with an IP address, if this has not already been done, and entering the IP address of the TFTP server and t...
Page 71 - Configuring VLANs
9032579-03 Configuring & Monitoring The Switch 57 If the cosen path fails for any reason, a disabled alternative is activated, thereby maintaining the connection. See Appendix B, “Spanning Tree Concepts,” for further information on using the Spanning Tree Protocol in a network. To configure Span...
Page 72 - Configuring Class of Service; To configure Class of Service, do the following:; Configuring Port Operation; To configure port operation, do the following:
58 Configuring & Monitoring The Switch ELS100-24TX 7. From the main VLAN Configuration Menu, select VLAN Port Menu to configure the VLAN port mode (hybrid or access) for individual ports. Configuring Class of Service You can configure Class of Service parameters using the Class of Service Config...
Page 73 - Configuring the Forwarding Table; To configure the forwarding table, do the following:
9032579-03 Configuring & Monitoring The Switch 59 5. Select Flow Control Enable to toggle between enabling (Yes) or disabling (No) flow control on the port(s). 6. Select Auto-negotiation Enable to toggle between enabling (Yes) or disabling (No) auto-negotiation on the port. 7. Select Full Duplex...
Page 74 - Configuring Broadcast Throttling
60 Configuring & Monitoring The Switch ELS100-24TX To either make an existing dynamic entry static (Make Entry Static) or delete a static entry (Delete Static Entry), do the following: 1. Select the letter associated with the option. The following message prompt displays: Enter MAC Address: 2. E...
Page 75 - Setting a Default Gateway; To set a default gateway, do the following:; Configuring BootP/DHCP; Select System Configuration Menu from the Main Menu.
9032579-03 Configuring & Monitoring The Switch 61 Setting a Default Gateway The Default Gateway parameter defines the IP address of a router or other network device to which IP packets are to be sent if destined for a subnet outside of that which the switch is operating. To set a default gateway...
Page 77 - The SNMP Protocol; SNMP Management Workstation
9032579-03 SNMP Management 63 5. SNMP MANAGEMENT The SNMP Protocol SNMP (Simple Network Management Protocol) is a communication protocol designed specifically for the purpose of managing devices or other elements on a network. Network equipment commonly managed with SNMP includes hubs, switches, rou...
Page 78 - There are three main operations defined in SNMP:; MIB Objects; The ELS100-24TX switch supports four standard MIBs:
64 SNMP Management ELS100-24TX There are three main operations defined in SNMP: • Operations that read information from the managed device, such as those used to obtain status or statistical data, are called GET operations. • Operations that change a functional parameter on the device, such as those...
Page 80 - Cabletron Proprietary MIB Extensions; Variable
66 SNMP Management ELS100-24TX Cabletron Proprietary MIB Extensions Areas of ELS100-24TX switch functionality not covered by the standard RFC MIBs are specified in the Cabletron private MIB. This MIB definition is specified separately from MIB-II. Areas covered in this MIB include various system, sw...
Page 83 - Compiling MIB Extensions: Cabletron Website
9032579-03 SNMP Management 69 Table 5-3. Port Variables Compiling MIB Extensions: Cabletron Website The MIBs supported by the ELS100-24TX switch must be compiled into the SNMP network management platform before the switch can be managed. The supported MIBs are available using Cabletron’s website at:...
Page 85 - APPENDIX A. TECHNICAL SPECIFICATIONS; General; Standards Compliance; IEEE 802.1Q Virtual Bridged Local Area Networks; Certification; 0 Mbps Manchester encoded or 100 Mbps 4B/5B encoded; Environmental Specifications; Operating temperature:
9032579-03 Technical Specifications 71 APPENDIX A. TECHNICAL SPECIFICATIONS General Standards Compliance IEEE 802.1D Transparent Bridging Specifications (ISO/IEC 10038) IEEE 802.1p Traffic Class Expediting and Dynamic Multicast Filtering IEEE 802.1Q Virtual Bridged Local Area Networks IEEE 802.2 Loc...
Page 86 - Electrical Specifications; Maximum power consumption:; Physical; Packet Buffer Memory:
72 Technical Specifications ELS100-24TX Electrical Specifications Input voltage: 100-240 VAC Input frequency: 50-60 Hz Maximum power consumption: 75 VA Physical Height: 1.75 in. (4.4 cm) Length: 16.0 in. (40.6 cm) Width: 17.1 in. (43.4 cm mountable in astandard 19 in. rack) Weight: 10.5 lb. (4.8 kg)...
Page 87 - Port Specifications; Console Port; Table A-1 shows the console port pin assignments.; Pin
9032579-03 Technical Specifications 73 Port Specifications Console Port Table A-1 shows the console port pin assignments. Table A-1. RS-232 Console Port Pin Assignments 10Base-T and 100Base-TX Ports The ELS100-24TX switch provides IEEE 802.3u auto-negotiation on its 10Base-T/100Base-TX ports for 10/...
Page 88 - Figure A-1. External Crossover Cable Wiring
74 Technical Specifications ELS100-24TX MDI/MDI-X Crossover Cable Wiring Figure A-1 shows the wiring scheme for implementing a crossover cable if needed for connection to the switch’s 10Base-T or 100Base-TX ports. Such a cable may be required when connecting the switch to another switch or a hub dev...
Page 89 - Power Cord Set Requirements; General Requirements; The requirements listed below are applicable to all countries:; Country-Specific Requirements
9032579-03 Technical Specifications 75 Power Cord Set Requirements The wide-range input feature of the ELS100-24TX Ethernet switch permits it to operate from any line voltage between 100 and 120 or 200 and 240 VAC. The power cord set (appliance coupler, flexible cord, and wall plug) you received wit...
Page 90 - Table A-1. Power Cord Set Requirements by Country; conductor size. Power cord set fittings (appliance; Country
76 Technical Specifications ELS100-24TX Table A-1. Power Cord Set Requirements by Country Note 1 Flexible cord must be <HAR> Type HO5VV-F or HO3VV-F, 3-conductor, 1.0 mm 2 , or 0.75 mm 2 conductor size. Power cord set fittings (appliance coupler and wall plug) must bear the certification mark ...
Page 91 - APPENDIX B. SPANNING TREE CONCEPTS
9032579-03 Spanning Tree Concepts 77 APPENDIX B. SPANNING TREE CONCEPTS General The IEEE 802.1D Spanning Tree Protocol resolves the problems of physical loops in a network by establishing one primary path between any two switches in a network. Any duplicate paths are barred from use and become stand...
Page 92 - Spanning Tree Protocol in a Network
78 Spanning Tree Concepts ELS100-24TX Spanning Tree Protocol in a Network Figure B-1 illustrates the use of three ELS100-24TX switches to establish an effective Spanning Tree configuration. Switches A, B and C are connected together in a redundant topology (more than one path between two points). If...
Page 93 - Table B-1. Spanning Tree Protocol Defaults; Spanning Tree Protocol Operation
9032579-03 Spanning Tree Concepts 79 Table B-1. Spanning Tree Protocol Defaults For detailed information on the operation of the Spanning Tree Protocol, consult Section 4 of IEEE Standard 802.1D, ISO/IEC 10038:1993. Spanning Tree Protocol Operation When the Spanning Tree Protocol is enabled for the ...
Page 94 - Communicating Between Bridges; There are five (5) states that the ports can be in for spanning tree:
80 Spanning Tree Concepts ELS100-24TX Communicating Between Bridges Periodically, all devices running the Spanning Tree Protocol on a network transmit packets to each other “in care of” the Bridge Group Address which all bridges share. When a bridge receives a frame sent to the Bridge Group Address,...
Page 95 - APPENDIX C. FLOW CONTROL; Half Duplex Applications
9032579-03 Flow Control 81 APPENDIX C. FLOW CONTROL Flow control is a mechanism which allows you to protect the switch from overload conditions and to keep additional traffic off the network when excessive congestion will result. Figure C-1 illustrates flow control for both half and full duplex appl...
Page 97 - VLANs and Frame Tagging; Figure D-1. Two Switch VLAN Configuration
9032579-03 Virtual LANs (VLANs) 83 APPENDIX D. VIRTUAL LANS (VLANS) VLANs and Frame Tagging The ELS100-24TX supports IEEE 802.1Q-compliant virtual LANs (VLANs). This capability provides a highly efficient architecture for establishing VLANs within a network and for controlling broadcast/multicast tr...
Page 100 - VLAN Hybrid Ports; Example 1; Identifiers
86 Virtual LANs (VLANs) ELS100-24TX VLAN Hybrid Ports A VLAN Hybrid port is used to connect one or more VLAN-aware or VLAN-unaware devices to the switch. Both tagged and untagged frames can be received and transmitted on Hybrid ports. Egress ports should typically be configured as Hybrid ports. When...
Page 102 - VLAN Application Example
88 Virtual LANs (VLANs) ELS100-24TX VLAN Application Example A network administrator can use VLANs to define user groups regardless of the physical LAN segment to which they are connected. The use of Hybrid and Access links can further refine traffic flow in a multi-switch environment. Figure D-4 sh...
Page 103 - APPENDIX E. CLASS OF SERVICE; high
9032579-03 Class Of Service 89 APPENDIX E. CLASS OF SERVICE Class of Service support on the ELS100-24TX allows you to assign mission-critical data a higher priority through the switch by delaying less critical traffic during periods of congestion. Higher priority traffic through the switch is servic...
Page 105 - Term
9032579-03 Acronyms & Abbreviations 91 APPENDIX F. ACRONYMS & ABBREVIATIONS Term Definition 10Base-T 10 Mbps twisted-pair Ethernet 100Base-TX 100Mbps twisted-pair Ethernet ANSI American National Standards Institute ASIC Application Specific Integrated Circuit BootP Bootstrap Protocol BPDU Br...
Page 107 - INDEX
9032579-03 Index 93 INDEX 10Base-T/100Base-TX pinouts, 7310Base-TX/100Base-TX ports, 20802.1D Spanning Tree Protocol, 56, 77 802.1D Bridge, 6802.1p, 89802.1Q, 84802.3x, 82 A architecture, 2auto-negotiation, 8, 41, 42 configuring, 59 B base MAC address, 47BootP/DHCP, 9 configuring, 61 bridge, 79, 80 ...