3Com CS/2500 manual SLP, and Trivial File Transfer Protocol Tftp, Next section

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4-8 CHAPTER 4: CONFIGURATION

Network Boot String	Specifies the filename of the image to be downloaded from an RBCS or
	TFTP/FTP server and executed. This string can be up to 128 characters
	long. The default is “_cs200 “ (without the quotation marks).
	If your boot protocol is System Load Protocol (SLP), do not modify the
	default network boot string.
	If your boot protocol is TFTP and your Address Discovery Protocol is
	Local Information, you must change the default network boot string to
	the complete pathname of the file you want to download. The default,
	“_cs200,” is not a valid filename. The pathname you enter depends on
	your UNIX® platform or generic TFTP server. For example, the boot
	string for a CS/2500 booting multiprotocol software version 6.2 from a
	DOS TFTP server would be “T25V62 “ (without the quotation marks).
Boot Retries	Specifies server behavior if a boot attempt fails. If you set “Try One
	Time,” the server tries to boot only once. If you set “Try Forever,” the
	server continues trying to boot until a suitable boot source is discovered.
Boot Protocol	Determines the file transfer protocol the communications server uses
	when it downloads software from an RBCS or generic TFTP/FTP server.
	The choices are Bridge Transport Protocol (BTP), System Load Protocol
	(SLP), and Trivial File Transfer Protocol (TFTP).
	BTP is a 3Com proprietary load protocol. This protocol was formerly
	used with 3Com Network Control Servers (NCSs). 3Com no longer
	supports NCS software, and you should not select this protocol. SLP is
	3Com’s implementation of the 802.1 standard System Load Protocol.
	TFTP is a file transfer protocol that is part of the TCP/IP protocol suite.
	If you are configuring your server to boot from an RBCS server, you can
	use either SLP or TFTP. If you boot from a TFTP server, use TFTP.
	If you select SLP as your boot protocol, the server uses the file specified
	by Network Boot String as the boot source. You do not need to
	configure additional parameters. If you select TFTP, you need to
	configure several other parameters. These parameters are described in
	the next section.

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Contents CS/2500 Series 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Iii Page Contents Installation Maintenance and Upgrades PIN Assignments Technical Support Page Figures Tables About this Guide IntroductionAudience ConventionsThis Typeface Italics Italics are used to denote new terms or emphasis About this Guide Features FeaturesOverview Ten standard RS-232-D electrical interfacesSW/2500, can be used only with the CS/2500 and CS/2600 SoftwareCompatibility Chassis Panel, see Back Panel onHardware Interrupt Front Panel Its +5 V DC output CS/2500 and CS/2600 back panel, shown in -5, contains Power supply module and three types of connectorsBack Panel Overview Back Panel Overview Mount Kit SpecificationsOptional Rack VAC Preparation InstallationDo the following before beginning the installation Installation Install brackets Turning on the server Cabling the ServerTo the Network All ports are set to terminal SETDefault -TERM DeVice = Installation Slide-lock connection on the server End to the transceiverInstall brackets Configuration AC power source must meet the requirements outlinedConfiguration, and Appendix C, Monitor Utility ModifyingInstallation Startup Guide or software release notes Booting from DisketteRbcs files DisketteStartup 3Com Corporation CS/2000 Series Monitor Reading...OK Insert copy and hit return to continue Parameter changes Boot Problems Normal StartupMessages Shutting DownShutting Down Startup Firmware Monitor ConfigurationEntering Configuration Following menu is displayed ProcedureChanging SLP Changing the Configuration Configuration Changing the Configuration Next section SLP, and Trivial File Transfer Protocol TftpUsed with 3Com Network Control Servers NCSs Com no longer Type B Change IP/TFTP Parameters menu appears TftpConfiguration Bootp Software and to operate in mixed environments Emulating aCS/2000 or CS/2100 Changing Port Configuration Changing Port Configuration Configuration Maintenance and Upgrades Maintenance3Com recommends the following procedures for preventive MaintenanceMaintenance and Upgrades Maintenance Reinstall the fuseholder cartridge in the receptacle Upgrades Upgrade procedures require you to remove the server coverRemoving the Server Cover Grasp both sides of the cover and carefully lift it off Rear8-F Pull taut to expose screw Voltages. There are no user-serviceable parts inside Upgrades Remove Connector from Each pin must be inserted properly into its socket EPROM. Each pin must be inserted properly into its socket Replace the cover, as described in the next sectionUpgrades Maintenance and Upgrades Troubleshooting Troubleshooting Operating Problems Troubleshooting Procedures Memory DumpEnter the density of the dump diskettes Return to use the default density 2mb Troubleshooting Figure A-1 Serial Connector Pin Numbering PIN AssignmentsTXD DTE Transceiver DO-S Slct Startup Messages Appendix B Startup Messages You can access the monitor in either of the following ways Monitor UtilityNonfunctional Set the Auto-reboot parameter to Boot monitorContinuous Self-Test and Initial Boot Source parameters Memory dumps, refer to Memory Dump Procedures on -2 on page 1-4. The switch is recessed into a round hole toBecome nonfunctional, enter the following command Dump Procedures onSyntax BT Procedures on Using this menu, refer to , ConfigurationFilename and address parameters specify the name From memory locationDescription Repeats the previous command Services 3Com Bulletin Board Service 3ComBBSTechnical Support On-line TechnicalPress Return to see the ThreeComForum main menu Country Telephone Number Hong Kong 852 2537 44 1442 408 727 Appendix D Technical Support Sender’s expense To obtain an RMA number, call or fax Returning ProductsFor Repair 10/25/95 Index NumericsCover Index Index Index Index Limited Warranty Bayfront Plaza Santa Clara, CA 408 764-5000 1/1/94