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Cabletron Systems DMS-100 manual Ethernet interface data ﬂow, Lan

Models: DMS-100

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26Chapter 1: Introduction to the EIU

Figure 2 Ethernet interface data ﬂow

	DMS-bus
			Messaging path
	User AP	Data
	(protocol	communications		Workstations
	processing, for	processor	Ethernet	Workstations
	processing, for	processor	Ethernet
	example, termi-	(transport	LAN	Communications
	example, termi-	(transport
	nal drivers)	interface)
	nal drivers)	interface)		server
				server
					Data
				Terminals	links

Given the cost of the SuperNode cabinet infrastructure, providing the standard hard connection interfaces in this mechanical environment is not possible. For this reason, interfaces are placed outside the boundaries of these cabinets.

Engineering approaches to LANs also address a similar problem. In LANs, it is not economic to provide all types of data interfaces at each node on the LAN. The communications server provides a range of communications services to all users on the LAN and may be located anywhere on the LAN.

Another major functional requirement that the EIU satisﬁes is providing connectivity to commercially available workstations for value-added services. This requirement is provided through a standard interconnect media. The majority of these workstations support an Ethernet interface for local area networking. The EIU also supports this protocol.

The EIU supports packet communication into a LAN. The standards for its physical implementation are deﬁned in IEEE 802.3. The EIU supports a

10 Mbit/s base band bus type of LAN for broadcast. The LAN uses a carrier sense multiple access with collision detection (CSMA/CD) method for arbitrating access to the communications channel.

Lastly, the EIU also provides a protocol gateway into the DMS-100 environment.

297-8991-910 Standard 03.01 August 1999

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Cabletron Systems DMS-100 manual Ethernet interface data ﬂow, Lan

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August May Publication historyAugust MarchVi Publication history Standard 03.01 August Contents EIU messaging protocols Chapter EIU datafillAppendix D Using telnet 141 EIU maintenance 103Appendix C Using FTP 117 Volume listingList of terms 189 Appendix H ASU background information 177Appendix I Obtaining a MAC address 185 List of figures Xii List of tables XiiiXiv About this document When to use this documentHow to check the version and issue of this document References in this documentInternet request for comment documents XviXvii What precautionary messages meanPossible loss of service Risk of electrocution How commands, parameters, and responses are representedRisk of personal injury Input promptResponses Commands and ﬁxed parametersVariables Standard 03.01 August Introduction to the EIU Possible loss of network securityOverview of the EIU System architecture IOC DMS-bus interface and expansionSLM SOS Unix EIUInter-message switch links required with LPP Data communications interface architectureEthernet interface data ﬂow LANIntroduction to the EIU UTP PB Hardware descriptionAUI PB Front cards Rear paddle boardsSlot EIU 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 EIULPP NTEX22 CPU/IPF Ethernet physical interfacesAttachment unit interface-NT9X85AA MAUGrounding requirements Capabilities, limitations, and restrictionsUnshielded twisted-pair NT9X85BA EIU hardware capabilities and limitations Introduction to the EIU Limitations associated with maintenance System-wide limitationsLimitations associated with protocols Routing information protocolInternet Protocol and Internet Control Message Protocol Feature packagingDMS-Core feature packages Package Title Description NTXF05AASheet 2 EIU provisioning requirementsDMS-bus inter-MS provisioning Example of DMS-bus intermessage switch conﬁguration DMS-bus external MS provisioningNT9X17AA NT9X23BA EIU provisioningEIU sparing and redundancy Billing Service ordersUser interface characteristics Possible loss of information Logs, alarms, and OMsAlarms Log reportsIntroduction to the EIU Standard 03.01 August EIU messaging protocols Shows the structure of the DMS-100 switch EIU protocol stack Software architectureFTS Ethernet FTP Telnet Snmp Bootp RIPTCP UDP Icmp ARP Ethernet LAN Workstation TCP/UDP FTSDMS-bus TCPBoot protocol Supported protocolsFile transfer protocol Wsls Internet Protocol TelnetUser datagram protocol Address resolution protocolTransmission control protocol Internet control message protocolInternet addresses AddressingMAC addresses EIU messaging protocols How to get IP addresses for SuperNode What is the SuperNode network topology?Routing EIU messaging protocols APUX20 LIU7 APX LMSAPUX10 LIU7 Routing tables IP throttling Protocol engineeringIP Screening TCP connection managementSubsystem Maximum UDP connections EIU APUUDP connection limits by SuperNode subsystem 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 LiuinvLink interface unit name Dataﬁll sequence and implicationsTable Liuinv dataﬁll Link interface unit typeLink interface unit number Message switch cardMessage switch port LocationProcessor information Link interface slotSoftware load name Processor product engineering codeEIU MAC addresses Sheet 4Sample dataﬁll for table Liuinv Table IpnetwrkIP addresses Dataﬁll for table Ipnetwrk IpnetwrkEthernet interface unit. Enter EIU Computing module Internet ProtocolInternet Protocol network subnet range Ethernet interface unit range. EnterDfltgtwyip Parm ScrnflagEiuinterface AddrIomnum Sample dataﬁll for table IpnetwrkGtwyipaddr PackletTable Iprouter Supplementary informationDataﬁll Table Iphost Ethernet address resolution protocolEthernet proxy address resolution Sample dataﬁll for table IprouterNodeidx IndexIndex Node indexNode name NodeTransmission control Protocol File processor indexInternet porotocol address SuperNode ConnectionsInternet protocol host identification for Support Operating SwitchApplication processor Unix index Cmindex Computing module indexInternet protocol address for node EiuindexEthernet interface unit index LanaddrEliuindex Second IP address for Eliu hostNodename = MS ApuxSample dataﬁll for table Iphost Message switch indexTable Ipthron MsindexEIU datafill Receive capacity Local message switch nodeTransmit capacity Synchronized and matched node index OptionSuperNode node Application processor unit indexField descriptions for table Ipthron for EIU datafill Table IpprotoSample dataﬁll for table Ipthron Field Subfield or Entry Explanation and action RefinementArprftmo Sample dataﬁll for table IpprotoIprsmtmo Sample dataﬁll for table Ensites Table EnsitesTable Entypes AlphanumericEntype Table ExndinvSample dataﬁll for table Entypes External node typePmloads External node number External node keyExternal node peripheral module type External node nameMachine address DMS boot protocolInternet Protocol address External node load file nameBay position Floor numberRow External node informationExternal node alarm scan points External node no-link alarmExternal node one-link alarm Critical alarm scan pointSample dataﬁll for table Exndinv Major alarm scan pointMinor alarm scan point Sheet 5EIU maintenance 103Out-of-service diagnostics EIU diagnosticsIn-service state 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 111Consult the DMS-100 PM Software Release Document SoftwareNTXF05AA EIU DatafillAppendix B EIU troubleshooting 113Tools Troubleshooting checklistEIU troubleshooting checklist Problem Probable cause Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August Appendix C Using FTP 117Where What is FTP?Automatic Record Length Detection DMS FTP cookbook Volume listingFTP on the DMS-100 switch File name conventionsDMS FTP client commands FTP commands on the DMS-100 switch Command DescriptionObtaining the IP address of the SuperNode host Tutorial basic FTP operations Procedure 1 Establishing an FTP session Step ActionWhere Userid Is a valid userID for that host Ftp ‘nnn.nnn.nnn.nnn ’Page Ftp cd ‘/team/bin’ Ftp dirFtp cd pathname Ftp lcd pathnameIf the file Where Pathname Is a valid directory path ExampleTutorial moving ﬁles Ftp lrecl Ftp lcd ‘/S00DTEMP’If the filename Ftp put ‘RECORDFILE’ ‘jan18.log’ Ftp get ‘ﬁle1.dmo ’Ftp get ‘ﬁle1.txt54 ’ Ftp cd ‘ /team/bin’ Ftp get ‘ﬁle1.bin’ Ftp get ‘ﬁle1.bin1020’ Procedure 7 Showing the status of server sessionsTutorial advanced operations Ftpadduserinfo ‘johnh’ ‘johnh’ ‘/S00DTEMP’ y Procedure 9 Remove a server userID and unreserve a sessionFtp svreserve Ftpdeluserinfo ‘johnh’ Where Userid Is the userID ExampleProcedure 10 Adding a userID with limited set of commands Ftp commandmask mkdir set Procedure 11 Adding a userID with a new command timeoutFTP operations reference FtpcommandtimeoutFtpcommandmask WS cd /pathname WS ftp IPaddressWS pwd WS lcd /directoryWS site Lrecl WS asciiWS get filename WS put filename NewfilenameCM Ftpopen ‘IPaddress’ WSput filename.image FilenameWS put filename.sosimage Filenameunipl CM FTP ‘IPaddress’CM lcd CM cd ‘pathname’CM lcd ‘/PATHNAME’ CM lsCM get ‘filename.load68k’ CM put filenameCM binary CM get ‘filename.bin1020’Appendix D Using telnet 141Telnet access to a switch Table Ipnetwrk Appendix D Using telnet Standard 03.01 August 145 What is internetworking?Appendix E Understanding IP and IP addressing 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 Proxy ARP Bootstrap ProtocolReverse 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 Considerations for obtaining IP addresses Appendix G IP network number requestsOverview 171Your Application Must be Typed NIC IP network number request formNIC IP address request form Sheet 2 Sheet 3 Sheet 4 Appendix G IP network number requests Standard 03.01 August Link interface unit Application-speciﬁc units and supported servicesAppendix H ASU background information Ethernet interface unitFrame relay interface unit 25/X.75 link interface unitASUs and Cellular digital packet data Network interface unitVoice processor unit and Adas Link peripheral processor PlatformsExternal routers 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 Shelf185 Appendix I Obtaining a MAC addressMAC address format 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