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Cabletron Systems DMS-100 manual Internet Protocol, Telnet

Models: DMS-100

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52Chapter 2: EIU messaging protocols

Internet Protocol

The IP control software supports the IP logic, which provides a connectionless datagram service between hosts. The IP software is designed such that the same modules provide IP host and IP router functionality. The IP layer interfaces with the following:

•transport layer protocols like TCP and user datagram protocol (UDP) for providing data ﬂow between transport layer and data link layer

•address resolution protocol (ARP) for resolving IP address to subnet address

•Internet control message protocol (ICMP) for handling IP control messages to and from other IP nodes

The IP routing table is maintained through static dataﬁll in IP tables in DMS- core and through dynamic routing information available either through Routing Information Protocol (RIP) or ICMP redirect message.

The IP throttling process is responsible for transmitting queued IP datagrams to destination nodes, based on the IP throttling conﬁguration in the IP tables in DMS-core.

Telnet

Telnet is an application protocol for remote terminal access. Telnet software is implemented in two parts:

•a server that resides on the accessed (host) computer

•a client that resides on the accessing (remote) computer

The server program listens at a known port for connection from clients. After a connection is established, the client redirects all keyboard input to the server, which passes it on to the accessed program. The server intercepts all program output, and redirects it to the client which prints it on the client machine screen.

The DMS-100 telnet server implementation has the following features:

•remote access to the DMS-100 switch through telnet

•increased maximum number of simultaneous telnet sessions supported on the DMS-100 switch

•logs that report on the telnet software

•dynamic assignment of telnet sessions

Telnet functionality has been implemented in the DMS-100 switch to provide access to the CI and the MAPCI, which are running on a DMS-core (CM), from a workstation or other FTP-capable devices on an Ethernet LAN.

297-8991-910 Standard 03.01 August 1999

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Cabletron Systems DMS-100 manual Internet Protocol, Telnet

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August Publication history AugustMay MarchVi Publication history Standard 03.01 August Contents EIU messaging protocols Chapter EIU datafillEIU maintenance 103 Appendix C Using FTP 117Appendix D Using telnet 141 Volume listingAppendix I Obtaining a MAC address 185 Appendix H ASU background information 177List of terms 189 List of figures Xii List of tables XiiiXiv When to use this document How to check the version and issue of this documentAbout this document References in this documentInternet request for comment documents XviPossible loss of service What precautionary messages meanXvii How commands, parameters, and responses are represented Risk of personal injuryRisk of electrocution Input promptVariables Commands and ﬁxed parametersResponses Standard 03.01 August Introduction to the EIU Possible loss of network securityOverview of the EIU System architecture DMS-bus interface and expansion SLMIOC SOS Unix EIUInter-message switch links required with LPP Data communications interface architectureEthernet interface data ﬂow LANIntroduction to the EIU AUI PB Hardware descriptionUTP PB Slot EIU Rear paddle boardsFront cards DMS SuperNode switch LPP with an EIU SSLPP, with 2-slot EIU locations Top view of Sslpp shelfEthernet interface card NT9X84 DMS SuperNode Flis with an EIUEthernet physical interfaces Attachment unit interface-NT9X85AALPP NTEX22 CPU/IPF MAUUnshielded twisted-pair NT9X85BA Capabilities, limitations, and restrictionsGrounding requirements EIU hardware capabilities and limitations Introduction to the EIU Limitations associated with maintenance System-wide limitationsLimitations associated with protocols Routing information protocolFeature packaging DMS-Core feature packages Package Title DescriptionInternet Protocol and Internet Control Message Protocol NTXF05AADMS-bus inter-MS provisioning EIU provisioning requirementsSheet 2 Example of DMS-bus intermessage switch conﬁguration DMS-bus external MS provisioningEIU sparing and redundancy EIU provisioningNT9X17AA NT9X23BA User interface characteristics Service ordersBilling Logs, alarms, and OMs AlarmsPossible loss of information Log reportsIntroduction to the EIU Standard 03.01 August EIU messaging protocols Shows the structure of the DMS-100 switch EIU protocol stack Software architectureTCP UDP Icmp ARP FTP Telnet Snmp Bootp RIPFTS Ethernet TCP/UDP FTS DMS-busEthernet LAN Workstation TCPBoot protocol Supported protocolsFile transfer protocol Wsls Internet Protocol TelnetAddress resolution protocol Transmission control protocolUser datagram protocol Internet control message protocolMAC addresses AddressingInternet addresses EIU messaging protocols How to get IP addresses for SuperNode What is the SuperNode network topology?Routing EIU messaging protocols APUX10 LIU7 APX LMSAPUX20 LIU7 Routing tables Protocol engineering IP ScreeningIP throttling TCP connection managementUDP connection limits by SuperNode subsystem EIU APUSubsystem Maximum UDP connections FTP session control Protocol buffer engineeringReceive 1518 Icbm common pool 1024 128 Transmit TCP own IP throttling IP throttling for LPPIP throttling for Sslpp Application Sheet 2EIU dataﬁll Interdependency and auto-conﬁguration Table LiuinvDataﬁll sequence and implications Table Liuinv dataﬁllLink interface unit name Link interface unit typeMessage switch card Message switch portLink interface unit number LocationLink interface slot Software load nameProcessor information Processor product engineering codeEIU MAC addresses Sheet 4IP addresses Table IpnetwrkSample dataﬁll for table Liuinv Dataﬁll for table Ipnetwrk IpnetwrkComputing module Internet Protocol Internet Protocol network subnet rangeEthernet interface unit. Enter EIU Ethernet interface unit range. EnterParm Scrnflag EiuinterfaceDfltgtwyip AddrSample dataﬁll for table Ipnetwrk GtwyipaddrIomnum PackletTable Iprouter Supplementary informationDataﬁll Ethernet address resolution protocol Ethernet proxy address resolutionTable Iphost Sample dataﬁll for table IprouterIndex IndexNodeidx Node indexNode name NodeFile processor index Internet porotocol address SuperNodeTransmission control Protocol ConnectionsApplication processor Unix index Support Operating SwitchInternet protocol host identification for Cmindex Computing module indexEiuindex Ethernet interface unit indexInternet protocol address for node LanaddrEliuindex Second IP address for Eliu hostNodename = MS ApuxMessage switch index Table IpthronSample dataﬁll for table Iphost MsindexEIU datafill Transmit capacity Local message switch nodeReceive capacity Option SuperNode nodeSynchronized and matched node index Application processor unit indexTable Ipproto Sample dataﬁll for table IpthronField descriptions for table Ipthron for EIU datafill Field Subfield or Entry Explanation and action RefinementIprsmtmo Sample dataﬁll for table IpprotoArprftmo Table Ensites Table EntypesSample dataﬁll for table Ensites AlphanumericTable Exndinv Sample dataﬁll for table EntypesEntype External node typePmloads External node key External node peripheral module typeExternal node number External node nameDMS boot protocol Internet Protocol addressMachine address External node load file nameFloor number RowBay position External node informationExternal node no-link alarm External node one-link alarmExternal node alarm scan points Critical alarm scan pointMajor alarm scan point Minor alarm scan pointSample dataﬁll for table Exndinv Sheet 5EIU maintenance 103EIU diagnostics In-service stateOut-of-service diagnostics EIU MAP levelIn-service diagnostics In-service leaky bucket auditEIU overload control EIU sparing requirements Automated system maintenance EIU EliuManual system maintenance Logs relevant to EIU OA&M OMs relevant to EIU OA&MAppendix a EIU installation checklist 111Software NTXF05AA EIUConsult the DMS-100 PM Software Release Document DatafillAppendix B EIU troubleshooting 113EIU troubleshooting checklist Problem Probable cause Troubleshooting checklistTools Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August Appendix C Using FTP 117Automatic Record Length Detection What is FTP?Where DMS Volume listing FTP on the DMS-100 switchFTP cookbook File name conventionsDMS FTP client commands FTP commands on the DMS-100 switch Command DescriptionObtaining the IP address of the SuperNode host Procedure 1 Establishing an FTP session Step Action Where Userid Is a valid userID for that hostTutorial basic FTP operations Ftp ‘nnn.nnn.nnn.nnn ’Page Ftp dir Ftp cd pathnameFtp cd ‘/team/bin’ Ftp lcd pathnameTutorial moving ﬁles Where Pathname Is a valid directory path ExampleIf the file If the filename Ftp lcd ‘/S00DTEMP’Ftp lrecl Ftp get ‘ﬁle1.txt54 ’ Ftp get ‘ﬁle1.dmo ’Ftp put ‘RECORDFILE’ ‘jan18.log’ Ftp cd ‘ /team/bin’ Ftp get ‘ﬁle1.bin’ Tutorial advanced operations Procedure 7 Showing the status of server sessionsFtp get ‘ﬁle1.bin1020’ Ftp svreserve Procedure 9 Remove a server userID and unreserve a sessionFtpadduserinfo ‘johnh’ ‘johnh’ ‘/S00DTEMP’ y Procedure 10 Adding a userID with limited set of commands Where Userid Is the userID ExampleFtpdeluserinfo ‘johnh’ Ftp commandmask mkdir set Procedure 11 Adding a userID with a new command timeoutFtpcommandmask FtpcommandtimeoutFTP operations reference WS ftp IPaddress WS pwdWS cd /pathname WS lcd /directoryWS ascii WS get filenameWS site Lrecl WS put filename NewfilenameWSput filename.image Filename WS put filename.sosimage FilenameuniplCM Ftpopen ‘IPaddress’ CM FTP ‘IPaddress’CM cd ‘pathname’ CM lcd ‘/PATHNAME’CM lcd CM lsCM put filename CM binaryCM get ‘filename.load68k’ CM get ‘filename.bin1020’Appendix D Using telnet 141Telnet access to a switch Table Ipnetwrk Appendix D Using telnet Standard 03.01 August Appendix E Understanding IP and IP addressing What is internetworking?145 What is routing? Routing and routed protocolsPlanning overview Mapping the networkSimple network map Detailed network diagram Choosing IP addressesIP address structure Class Range DescriptionClass Range Description IP addressing class a Subnet mask class a Class a subnet masks IP addressing class B Subnet mask class B Class B subnet masks IP addressing class C Address masks IP addressing class DNetwork numbering example Address mask example Network nodeFirewalls and network security Simple network numberingVariable-width subnetworks Protocols related to Internet ProtocolInternet control message protocol Bootstrap Protocol Reverse ARPProxy ARP Inverse ARPOpen shortest path ﬁrst Page Appendix F EIU supported conﬁgurations 165Host conﬁguration Router conﬁgurations Host and router conﬁguration Interface conﬁguration part Subnet ClassA .networkidB .subnetX .hostZ 47.105.150.3 Appendix G IP network number requests OverviewConsiderations for obtaining IP addresses 171NIC IP address request form NIC IP network number request formYour Application Must be Typed Sheet 2 Sheet 3 Sheet 4 Appendix G IP network number requests Standard 03.01 August Application-speciﬁc units and supported services Appendix H ASU background informationLink interface unit Ethernet interface unitFrame relay interface unit 25/X.75 link interface unitVoice processor unit and Adas Network interface unitASUs and Cellular digital packet data External routers PlatformsLink peripheral processor LPP architecture ASUSingle-shelf link peripheral processor On page 183 provides an overview of the Sslpp conﬁgurationSuperNode SE link interface shelf Sslpp architectureSNSE-LIS architecture ShelfMAC address format Appendix I Obtaining a MAC address185 EIU MAC address format How to get the MAC address for an EIU Appendix I Obtaining a MAC address Standard 03.01 August List of terms 189List of terms LIS MTP List of terms UDP Page Ethernet Interface Unit