User manual TRENDNET TE100-S14

[. . . ] TE-100/S14 10/100 Fast Ethernet Switch 100Base-TX and 10Base-T User's Guide First Edition - October 31, 1995 Trademarks Copyright TRENDware All rights reserved, contents are subject to revision without prior notice. TRENDnet is a registered trademark of TRENDware Ethernet is a trademark of Xerox Corporation. Microsoft Windows is a trademark of Microsoft Corporation. VT100 is a trademark of Digital Equipment Corporation. FCC warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. [. . . ] If a LAN segment connects to a TRENDnet TE-100/PCI, TE-PCI/T, TE-PCI/CT, or TE-PCI/CT+ network adapter card, or to another switch, the LAN segment will have the full duplex bandwidth. This means that a dedicated server or a high performance workstation connection to the TE100/S14 Switch will significantly benefit from this Full duplex option. 21 The TE-100/S14 Switch is also capable of in-field upgrade of its system firmware. A user can do so from a PC communication software package which also includes the XMODEM feature. The XMODEM will guide the user to down-load the firmware code into the TE-100/S14 Switch. If a user needs to upgrade the system firmware, please contact TRENDware technical support for the latest firmware file and the detailed down-load procedures. Terminal Step Communication software DCE/DTE line setting PC COM port hardware setting Assigning control keys to a non-VT100 system software environment VT100 Compatible terminal N/A PC VT100 terminal emulation VT100 emulation in Terminal / Accessories in MS-Windows, or other terminal emulation software 19, 200 Baud, 8 N 1 (through the Terminal software) Refer to PC COM port hardware and Software setup guidelines Deselect "Use function, arrow, Ctrl keys for Windows" in Terminal Preference. . " in Windows Terminal Accessories; or refer to specific terminal emulation software 19, 200 Baud, 8 N 1 (hardware setting) N/A N/A Table Chapter 3 -1, Setting up the TE-100/S14 management terminal 22 Control function Switch Configuration System display 1. Full / Half duplex (all ports) Save change Exit User selection V1. 10 (Fixed) 10/100 (changeable) (Factory preset) (Factory preset, changeable) Enable / Disable (changeable) F2 key F4 key Enable / Disable Block, Learning, Listening, Forwarding, Disable 1 (Hi) - 255 (Lo) F2 key F4 key Enable / Disable 32768 (changeable) (Reflected STA result) 10 sec. of the current Root Bridge) (Reflected STA result) Space Key (toggle) F4 key Space Key (toggle) F4 key * Note: Bold typeface fields are user changeable. Port Configuration (for each of the 100M, and four 10M ports) Ether State Port Status Port Priority Save change Exit Spanning Tree Configuration Enable / Disable Bridge (switch) Priority Root Cost Hello Time Forward Delay Time Max Age Time Root Bridge Root Port Down-load new system firmware Re-load factory default setting Exit Y/N Exit Y/N Exit Table Chapter 3 -2, The TE-100/S14 Out-of-Band management functions 23 Port Management The ports on the TE-100/S14 Switch can be managed through the Out-of-Band RS-232 port. In Table Chapter 3 -2, page 23, Port Configuration allows a user to enable or disable a port connecting to a LAN segment. The Port Configuration also allows a user to set the priority of a port. A number (ranging 1 - 255, high - low) can be entered to identify the priority setting of the Switch. This number, in conjunction with the pre-set port ID, is used under the Spanning Tree Algorithm to determine the "Root Port" for forwarding Ethernet data, and to avoid network loop. The Port Status displays the state of the port at any given time. A port will display one of the states (Blocking, Learning, Listening, Forwarding, and Disable) responding to the port Enable / Disable setting, and to the dynamic changes in routing paths of the surrounding network. 24 Spanning Tree Algorithm The TE-100/S14 Switch implements the Spanning Tree Algorithm (henceforth STA) to provide the following functions: · Network loop detection and prevention - There can be only one path between any two bridged Ethernet LAN segments1. If there are more than one path, forwarded packets may loop indefinitely. STA detects any looped path and selects the path with the lowest "path cost" as the active path, while blocking the other paths. Automatic topology re-configuration - If an active path fails and there is a backup path, the backup path will be automatically activated, and the STA will automatically reconfigure the network topology. · The detailed Algorithm is defined in the STA Specification. The following introduces the key information and terminology needed to interpret the parameters used in the TE-100/S14 Switch that support the STA. It is also helpful to understand the effects of changing these parameters. Appendix B lists the defaults setting used by the TE-100/S14 Switch. STA operates at two levels, the Bridge2 level and the Port level. In addition, STA uses several timers to periodically ensure the integrity of the Bridges and their ports in a network. 1 A shared hub is a star topology cabling implementation of the same LAN segment, therefore, is not a Bridge. Bridge is the standard terminology used in the Spanning Tree Algorithm Specification, which could be a bridge or switch. 2 25 1. [. . . ] Some of the System errors and LAN port errors can be resolved by restarting the System, or with remote technical support from TRENDware (See shaded areas in Appendix A, Page 35, The TE100/S14 system POST status LED lights). The remaining System errors require that the unit be returned to your nearest TRENDnet reseller for repair. LAN segment LED Status In addition to the System Status LED lights, there are three LED lights (See Page 36) for each port displaying the operating status of the connected 10Mbps or 100Mbps LAN segment. Each Link LED light displays the status of corresponding LAN segment during Power-On. During active switching of LAN data traffic, Link LED lights display the change in the state of the segment, Activity LED lights display the transmitting and receiving of data on the corresponding LAN segments. [. . . ]