Cabletron Systems ELS100-24TXM - Manuals

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 in writing, Cabletron makes no warranty, expressed or implied, concerning the Pro-gram (including its documentation and media). CABLETRON DISCLAIMS ALL WARRANTIES, OTHER TH...

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

ELS100-24TXM Table of Contents i TABLE OF CONTENTS PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface i Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iAudience . . . . . . . . ....

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.

9032785 Preface i PREFACE Purpose This guide provides information about the features and applications of the Cabletron Systems ELS100-24TXM switch as well as instructions for configuring and monitoring the switch. Audience This guide is intended for Ethernet local area network (LAN) administrators a...

Page 12 - Keyboard Entries; courier font; Organization

ii Preface ELS100-24TXM 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 ...

Page 15 - Description

9032785 Product Overview 1 1. PRODUCT OVERVIEW Description This installation and user guide describes the Cabletron Systems ELS100-24TXM Ethernet switch. The switch is IEEE 802.1D-compliant and supports 24 IEEE 802.3u 100Base-TX Fast Ethernet ports. Each port can alternatively operate as an IEEE 802...

Page 16 - Features

2 Product Overview ELS100-24TXM Features • Ports: - 24 dual-speed 10Base-T/100Base-TX ports using RJ-45 connectors (MDI-X); 22 ports active when using modular slot for 100Base-FX connections - 1 modular slot for 2 100Base-FX ports using SC connectors • Architecture: - 8-port 10/100 switch ASIC in a ...

Page 17 - Front Panel; Name

9032785 Product Overview 3 Front Panel Figure 1-1 shows the front panel of the ELS100-24TXM. Table 1-1 defines the ELS100-24TXM front panel components. Figure 1-1. ELS100-24TXM Front Panel Table 1-1. Front Panel Components Name Function 100Base-FX Fiber ports (Ports 1 and 2)* Fiber ports using SC fi...

Page 18 - Figure 1-4. Port LEDs LED Mode Button Pressed

4 Product Overview ELS100-24TXM Figure 1-2 shows the Link and Activity LEDs for the 2 100Base-FX ports (fiber port LED functions are defined in Table 1-2). The LEDs are positioned to the left of their associated port. Figure 1-2. 100Base-FX Port LEDs Figure 1-3 shows the Link and Activity port LEDs ...

Page 20 - Rear Panel

6 Product Overview ELS100-24TXM Rear Panel Figure 1-5 shows the ELS100-24TXM rear panel and Table 1-3 defines the rear panel components. Figure 1-5. ELS100-24TXM Rear Panel Table 1-3. Rear Panel Components Feature Summaries The following summaries provide a brief description of ELS100-24TXM features...

Page 21 - Spanning Tree Protocol

9032785 Product Overview 7 Spanning Tree Protocol The ELS100-24TXM switch supports the IEEE 802.1D Spanning Tree Protocol. This protocol allows redundant connections to be created between different LAN segments for purposes of fault tolerance. Two or more physical paths between different segments ca...

Page 22 - Configuration and Management Interfaces

8 Product Overview ELS100-24TXM Configuration and Management Interfaces The ELS100-24TXM switch can be managed using any of the following three methods: • Serial console, out-of-band An RS-232 connection, using a DB-9 connector, is supported for out-of-band switch management. Serial console manageme...

Page 23 - Port Mirroring

9032785 Product Overview 9 • Event: a function that operates with the Alarm group to define an action that will be taken when an alarm condition occurs. The event may write a log entry and/or send a trap message. RMON Statistics group information is displayed on the Port Statistics Screen in the con...

Page 24 - LEDs

10 Product Overview ELS100-24TXM BootP/DHCP The Bootstrap Protocol (BootP) and the Dynamic Host Configuration Protocol (DHCP) provide for the capability of passing configuration information to hosts on a TCP/IP network. Using this process, network devices do not need to be configured before they can...

Page 25 - Class of Service; Application Examples; Client/Server Network

9032785 Product Overview 11 Class of Service Class of Service support allows you to assign a higher priority to selected traffic passing through the switch. The ELS100-24TXM switch supports Class of Service attributes per the IEEE 802.1p draft standard using a priority queuing mechanism. This featur...

Page 26 - Client/Server Network Application

12 Product Overview ELS100-24TXM Client/Server Network Application To improve workstation performance in a client/server environment, the ELS100-24TXM 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...

Page 27 - Local Backbone Application

9032785 Product Overview 13 Local Backbone Application The ELS100-24TXM 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 on ...

Page 29 - Inspecting Your Shipment

9032785 Installation 15 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: • ELS100-24TXM Fast Ethernet switch • Fiber port protective plugs inserted into switch • Mounting ears and mounting sc...

Page 30 - Mounting the Switch on a Table or Shelf

16 Installation ELS100-24TXM 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 cord. Make sure that the mounting surface can safely support the switch and...

Page 31 - Mounting the Switch on a Wall; Mount the switch to the wall using appropriate screws.; Figure 2-1. Mounting the Switch on a Wall

9032785 Installation 17 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 sa...

Page 32 - Mounting the Switch in a Rack; Figure 2-2. Mounting the Switch in a Rack

18 Installation ELS100-24TXM 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 33 - Installing a Fiber Uplink Module into the Switch; To install the fiber module into the switch, do the following:; Figure 2-3. Installing a Fiber Module into the Switch; Insert the 2 mounting screws and fasten.

9032785 Installation 19 Installing a Fiber Uplink Module into the Switch The fiber uplink module option permits you to enable 100Base-FX fiber connections to the switch. A 2 port fiber module can be installed into the modular slot on the left side of the switch (Figure 2-3). To install the fiber mod...

Page 34 - Connecting a Terminal to the Console Port; Figure 2-4. Connecting a Terminal to the Console Port; From your terminal, start the terminal emulation program.

20 Installation ELS100-24TXM 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,...

Page 35 - Powering the Switch; To supply power to the switch, do the following:; Figure 2-5. Connecting the Power Cord to the Switch; Turn on the power switch.

9032785 Installation 21 5. Configure the terminal to the following communication settings: 9600 baud, no parity, 8 data bits, 1 stop bit, no hardware flow control, ASCII character set. Powering the Switch To supply power to the switch, do the following: 1. Connect the power cord to the switch and to...

Page 36 - Memory; Network Cable Requirements; Copper

22 Installation ELS100-24TXM • Memory Memory tests on the CPU RAM are performed after the serial port test. No results are displayed on the console. After these two tests are performed, the operational software of the switch is loaded. A series of more extensive diagnostic tests are then conducted d...

Page 38 - 00Base-FX Fiber Ports; Figure 2-7. Inserting an SC Fiber Connector into a Fiber Port; m fiber. The 100Base-FX ports use SC fiber connectors. The SC; Fiber Uplink Modules; Part Number

24 Installation ELS100-24TXM 100Base-FX Fiber Ports The 100Base-FX Fiber ports use SC connectors. Figure 2-7 shows an SC fiber connector being inserted into a fiber port on the ELS100-24TXM. Figure 2-7. Inserting an SC Fiber Connector into a Fiber Port Depending on the fiber uplink module employed (...

Page 39 - Overview; Menu Identification (includes model number)

9032785 ELS100-24TXM User Interface 25 3. ELS100-24TXM 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 default...

Page 40 - User Access; No password is configured in the factory

26 ELS100-24TXM User Interface ELS100-24TXM 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 information, but not modify any operating parameters. READ/WRITE access allows you to both read and modify switch informat...

Page 41 - Factory Defaults; Parameter

9032785 ELS100-24TXM User Interface 27 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 Aut...

Page 42 - Menu Hierarchy

28 ELS100-24TXM User Interface ELS100-24TXM Menu Hierarchy Figure 3-2 shows the ELS100-24TXM switch user interface menu hierarchy. Figure 3-2. ELS100-24TXM 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 ...

Page 43 - Main Menu; Selection

9032785 ELS100-24TXM User Interface 29 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 M...

Page 44 - System Configuration Menu

30 ELS100-24TXM User Interface ELS100-24TXM 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 accompan...

Page 45 - SNMP Configuration Menu

9032785 ELS100-24TXM User Interface 31 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 table ...

Page 46 - Switch Configuration Menu

32 ELS100-24TXM User Interface ELS100-24TXM 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 ...

Page 47 - Forwarding Table Configuration Menu; Figure 3-7. Forwarding Table Configuration Menu; continued on next page; Field

9032785 ELS100-24TXM User Interface 33 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. Sele...

Page 49 - Spanning Tree Configuration Menu; Figure 3-8. Spanning Tree Configuration Menu

9032785 ELS100-24TXM User Interface 35 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 mo...

Page 51 - Spanning Tree Port Configuration Menu; Figure 3-9. Spanning Tree Port Configuration Menu

9032785 ELS100-24TXM User Interface 37 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 Port ...

Page 52 - Spanning Tree Port #n Configuration Menu; n Configuration Menu. Figure 3-10 shows the; Figure 3-10. Spanning Tree Port Configuration Menu

38 ELS100-24TXM User Interface ELS100-24TXM 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 ...

Page 53 - VLAN Configuration Menu

9032785 ELS100-24TXM User Interface 39 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 t...

Page 54 - VLAN Menu

40 ELS100-24TXM User Interface ELS100-24TXM 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 an...

Page 55 - VLAN #n Configuration Menu

9032785 ELS100-24TXM User Interface 41 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. Fig...

Page 56 - VLAN Port Menu; Figure 3-14. VLAN Port Configuration Menu

42 ELS100-24TXM User Interface ELS100-24TXM 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...

Page 57 - Class of Service Configuration Menu; Figure 3-15. Class of Service Configuration Menu

9032785 ELS100-24TXM User Interface 43 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 C...

Page 58 - Port Priority Menu; Figure 3-16. Port Priority Configuration Menu

44 ELS100-24TXM User Interface ELS100-24TXM Port Priority Menu The Port Priority Menu allows you to modify and display a table which shows Class of Service configuration information on a per port basis. Select c from the Class of Service Configuration Menu to view the Port Priority Configuration Men...

Page 61 - Switch Statistics Screen; Field Description

9032785 ELS100-24TXM User Interface 47 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 Statistic...

Page 62 - Switch Summary Screen

48 ELS100-24TXM User Interface ELS100-24TXM 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 ...

Page 63 - Port Statistics Screen

9032785 ELS100-24TXM User Interface 49 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 Statistic...

Page 65 - General Information Screen

9032785 ELS100-24TXM User Interface 51 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 th...

Page 66 - Download Software Menu

52 ELS100-24TXM User Interface ELS100-24TXM 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 D...

Page 68 - Reset; Select j from the Main Menu to view the Reset screen.; The following message prompt displays:

54 ELS100-24TXM User Interface ELS100-24TXM Reset The Reset screen allows you to perform a switch hardware reset. You are first prompted as to whether or not to save the current switch configuration. To reset the switch, do the following: 1. Select j from the Main Menu to view the Reset screen. The ...

Page 69 - Common Tasks

9032785 Configuring & Monitoring the Switch 55 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 Section 3...

Page 70 - Setting Password Protection

56 Configuring & Monitoring the Switch ELS100-24TXM Setting Password Protection The ELS100-24TXM 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 configu...

Page 71 - Assigning an IP Address

9032785 Configuring & Monitoring the Switch 57 Assigning an IP Address To assign an IP address to the switch, do the following: 1. Select System Configuration Menu from the Main menu. 2. Select IP address from the menu and enter the IP address. Press [Enter]. The IP address is now programmed. Th...

Page 72 - Setting SNMP Management Access

58 Configuring & Monitoring the Switch ELS100-24TXM Setting SNMP Management Access Access to the ELS100-24TXM switch through SNMP is controlled by community names. The community names set for the switch must match those used by the SNMP management station for successful communication to occur. T...

Page 73 - Configuring Port Mirroring; To configure port mirroring, do the following:; Downloading a Software Upgrade; Software can be downloaded to the switch in two ways:

9032785 Configuring & Monitoring the Switch 59 Configuring Port Mirroring You can mirror the traffic being switched on any port for the purposes of network traffic analysis and connection assurance. When Port Mirroring is enabled, one port in each group of eight becomes a monitor port for any on...

Page 74 - Downloading Via the Serial Port; Software downloader is running.; Downloading Via TFTP

60 Configuring & Monitoring the Switch ELS100-24TXM Downloading Via the Serial Port A serial download is the easiest method to upgrade the ELS100-24TXM switch software, requiring the least amount of equipment and configuration. To download switch software via the serial port, do the following: 1...

Page 75 - Configuring Spanning Tree Parameters; To configure Spanning Tree Parameters, do the following:

9032785 Configuring & Monitoring the Switch 61 4. If necessary, configure the address of an IP gateway to reach the server from the switch using the Default Gateway field on the System Configuration Menu. 5. Configure the TFTP server by copying the download file from the upgrade disk to an appro...

Page 76 - Configuring VLANs; Select Switch Configuration Menu from the Main Menu.; Configuring Class of Service

62 Configuring & Monitoring the Switch ELS100-24TXM Configuring VLANs A virtual LAN (VLAN) is a group of devices on one or more LANs that are configured such that they can communicate as if they were attached to the same wire. Because VLANs are based on logical instead of physical connections, t...

Page 77 - To configure Class of Service, do the following:; Configuring Port Operation; To configure port operation, do the following:

9032785 Configuring & Monitoring the Switch 63 To configure Class of Service, do the following: 1. Select Class of Service Configuration Menu from the Switch Configuration Menu. 2. Turn the global switch Class of Service operation on or off by toggling the Class of Service Enable option by press...

Page 78 - Configuring the Forwarding Table; To configure the forwarding table, do the following:

64 Configuring & Monitoring the Switch ELS100-24TXM 7. Select Full Duplex to toggle between Yes (Full Duplex) and No (Half Duplex) mode on the port(s). 8. Select Port Speed to toggle between 10Mbps and 100Mbps speeds on the port(s). Configuring the Forwarding Table The Forwarding Table allows yo...

Page 79 - Configuring Broadcast Cutoff Rate

9032785 Configuring & Monitoring the Switch 65 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. Enter...

Page 80 - Setting a Default Gateway; To set a default gateway, do the following:; Configuring BootP/DHCP; Select System Configuration Menu from the Main Menu.

66 Configuring & Monitoring the Switch ELS100-24TXM 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 gatew...

Page 81 - The SNMP Protocol; Figure 5-1. ELS100-24TXM Switches Managed by an SNMP Management

9032785 SNMP Management 67 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, router...

Page 82 - There are three main operations defined in SNMP:; MIB Objects; The ELS100-24TXM switch supports four standard MIBs:

68 SNMP Management ELS100-24TXM 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 thos...

Page 84 - Cabletron Systems Proprietary MIB Extensions

70 SNMP Management ELS100-24TXM Cabletron Systems Proprietary MIB Extensions Areas of ELS100-24TXM switch functionality not covered by the standard RFC MIBs are specified in the Cabletron Systems private MIB. This MIB definition is specified separately from MIB-II. Areas covered in this MIB include ...

Page 86 - Variable

72 SNMP Management ELS100-24TXM Table 5-2 Switch Information Variables (continued) Variable Description SwitchMirroredPort Port to be mirrored from. SwitchMirroringPort Port to be mirroring to. SwitchXmitMirrorEnable Enable/disable mirroring of transmitted traffic out of the mirrored port to the mir...

Page 87 - Compiling MIB Extensions: Cabletron Website; or

9032785 SNMP Management 73 Table 5-3. Port Variables Compiling MIB Extensions: Cabletron Website The MIBs supported by the ELS100-24TXM switch must be compiled into the SNMP network management platform before the switch can be managed. The supported MIBs are available via the Internet at the followi...

Page 89 - 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:

9032785 Technical Specifications 75 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 Local ...

Page 90 - Electrical Specifications; Maximum power consumption:; Physical; Packet Buffer Memory:

76 Technical Specifications ELS100-24TXM 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 mountablein a standard 19 in. rack) Weight: 10.5 lb. (4.8 kg...

Page 91 - Port Specifications; Console Port; Table A-1 shows the console port pin assignments.; Pin

9032785 Technical Specifications 77 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 ELS100-24TXM switch provides IEEE 802.3u auto-negotiation on its 10Base-T/100Base-TX ports for 10/10...

Page 92 - Figure A-1. External Crossover Cable Wiring; Power Cord Set Requirements; General Requirements; The requirements listed below are applicable to all countries:

78 Technical Specifications ELS100-24TXM 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 de...

Page 93 - Country-Specific Requirements; Table A-3. Power Cord Set Requirements by Country; conductor size. Power cord set fittings (appliance; Country

9032785 Technical Specifications 79 Country-Specific Requirements Table A-3 lists the power cord set requirements by country and identifies the accredited agency within that country. Table A-3. Power Cord Set Requirements by Country NOTE 1 Flexible cord must be <HAR> Type HO5VV-F or HO3VV-F, 3...

Page 95 - APPENDIX B. SPANNING TREE CONCEPTS

9032785 Spanning Tree Concepts 81 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 standby ...

Page 96 - Spanning Tree Protocol in a Network

82 Spanning Tree Concepts ELS100-24TXM Spanning Tree Protocol in a Network Figure B-1 illustrates the use of three ELS100-24TXM 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). ...

Page 97 - Spanning Tree Protocol Parameters; Table B-1. Spanning Tree Protocol Defaults

9032785 Spanning Tree Concepts 83 Spanning Tree Protocol Parameters Several configuration parameters control the operation of the Spanning Tree Protocol. Table B-1 describes the parameters and lists the ELS100-24TXM switch default settings for each parameter. Table B-1. Spanning Tree Protocol Defaul...

Page 98 - Spanning Tree Protocol Operation; Communicating Between Bridges

84 Spanning Tree Concepts ELS100-24TXM Spanning Tree Protocol Operation When the Spanning Tree Protocol is enabled for the first time or when there is a change in the network topology, such as a failure or the addition or removal of a component, the Spanning Tree Protocol automatically sets up the a...

Page 99 - There are five (5) states that the ports can be in for spanning tree:

9032785 Spanning Tree Concepts 85 There are five (5) states that the ports can be in for spanning tree: • Blocking: A port in this state does not participate in the transmission of frames, thus preventing duplication arising through multiple paths existing in the active topology of the bridged LAN. ...

Page 101 - APPENDIX C. FLOW CONTROL; Figure C-1. Flow Control for Full and Half Duplex Applications

9032785 Flow Control 87 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 applica...

Page 103 - VLANs and Frame Tagging; Figure D-1. Two Switch VLAN Configuration

9032785 Virtual LANs (VLANs) 89 APPENDIX D. VIRTUAL LANS (VLANS) VLANs and Frame Tagging The ELS100-24TXM 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 traf...

Page 106 - VLAN Hybrid Ports; Example 1; Identifiers

92 Virtual LANs (VLANs) ELS100-24TXM 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. Whe...

Page 108 - VLAN Application Example

94 Virtual LANs (VLANs) ELS100-24TXM 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 s...

Page 109 - APPENDIX E. CLASS OF SERVICE; high

9032785 Class Of Service 95 APPENDIX E. CLASS OF SERVICE Class of Service support on the ELS100-24TXM 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 serviced...

Page 111 - Term

9032785 Acronyms & Abbreviations 97 APPENDIX F. ACRONYMS & ABBREVIATIONS Term Definition 10Base-T 10Mbps twisted-pair Ethernet 100Base-FX 100Mbps fiber Fast Ethernet 100Base-TX 100Mbps twisted-pair Fast Ethernet ANSI American National Standards Institute ASIC Application Specific Integrated ...

Page 113 - INDEX

9032785 Index 99 INDEX 100Base-FX connectors, 2410Base-T/100Base-TX connectors, 2310Base-T/100Base-TX pinouts, 77, 79802.1D Spanning Tree Protocol, 61, 81 802.1D Bridge, 6802.1p, 95802.1Q, 90802.3x, 87, 88 A architecture, 2auto-negotiation, 9, 45, 46 configuring, 63 B base MAC address, 51BootP/DHCP,...