Introduction to the EIU | Cabletron Systems DMS-100 instruction

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Chapter 1: Introduction to the EIU

This chapter describes the Ethernet interface unit (EIU).

CAUTION

Possible loss of network security

Using the EIU and a telnet or file transfer protocol (FTP) session to establish a maintenance and administration position (MAP) session can introduce a security risk to both the DMS node and its subtending network.

When establishing and operating a MAP session in this way, there is limited security for clear text (user identification and passwords) and for Internet Protocol (IP) addresses for screening. This limited security makes an open local area network (LAN) vulnerable to entry by unauthorized persons.

Nortel recommends that the operating company, as a minimal precaution, integrate intermediate security servers with encryption to avoid unauthorized access to the switch. For alternative approaches, contact your Nortel representative to discuss state-of-the-art secure OA&M data communications equipment products.

By using the EIU, telnet, and FTP software, the operating company assumes any and all risks associated with the implementation and use of this hardware and software.

Topics in the chapter include the following:

•overview of the EIU

•system architecture

•hardware description

•limitations and restrictions

•feature packaging

DMS-100 Family EIU User Guide TELECOM12

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Cabletron Systems DMS-100 manual Introduction to the EIU, Possible loss of network security

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August August Publication historyMay March Vi Publication history Standard 03.01 August Contents Chapter EIU datafill EIU messaging protocols Appendix C Using FTP 117 EIU maintenance 103Appendix D Using telnet 141 Volume listing Appendix H ASU background information 177 Appendix I Obtaining a MAC address 185List of terms 189 List of figures Xii Xiii List of tables Xiv How to check the version and issue of this document When to use this documentAbout this document References in this document Xvi Internet request for comment documents What precautionary messages mean Possible loss of serviceXvii Risk of personal injury How commands, parameters, and responses are representedRisk of electrocution Input prompt Commands and ﬁxed parameters VariablesResponses Standard 03.01 August Possible loss of network security Introduction to the EIU Overview of the EIU System architecture SLM DMS-bus interface and expansionIOC SOS Unix EIU Data communications interface architecture Inter-message switch links required with LPP LAN Ethernet interface data ﬂow Introduction to the EIU Hardware description AUI PBUTP PB Rear paddle boards Slot EIUFront cards SSLPP, with 2-slot EIU locations Top view of Sslpp shelf DMS SuperNode switch LPP with an EIU DMS SuperNode Flis with an EIU Ethernet interface card NT9X84 Attachment unit interface-NT9X85AA Ethernet physical interfacesLPP NTEX22 CPU/IPF MAU Capabilities, limitations, and restrictions Unshielded twisted-pair NT9X85BAGrounding requirements EIU hardware capabilities and limitations Introduction to the EIU System-wide limitations Limitations associated with maintenance Routing information protocol Limitations associated with protocols DMS-Core feature packages Package Title Description Feature packagingInternet Protocol and Internet Control Message Protocol NTXF05AA EIU provisioning requirements DMS-bus inter-MS provisioningSheet 2 DMS-bus external MS provisioning Example of DMS-bus intermessage switch conﬁguration EIU provisioning EIU sparing and redundancyNT9X17AA NT9X23BA Service orders User interface characteristicsBilling Alarms Logs, alarms, and OMsPossible loss of information Log reports Introduction to the EIU Standard 03.01 August EIU messaging protocols Software architecture Shows the structure of the DMS-100 switch EIU protocol stack FTP Telnet Snmp Bootp RIP TCP UDP Icmp ARPFTS Ethernet DMS-bus TCP/UDP FTSEthernet LAN Workstation TCP Supported protocols Boot protocol File transfer protocol Wsls Telnet Internet Protocol Transmission control protocol Address resolution protocolUser datagram protocol Internet control message protocol Addressing MAC addressesInternet addresses EIU messaging protocols What is the SuperNode network topology? How to get IP addresses for SuperNode Routing EIU messaging protocols APX LMS APUX10 LIU7APUX20 LIU7 Routing tables IP Screening Protocol engineeringIP throttling TCP connection management EIU APU UDP connection limits by SuperNode subsystemSubsystem Maximum UDP connections Protocol buffer engineering FTP session control Receive 1518 Icbm common pool 1024 128 Transmit TCP own IP throttling for LPP IP throttling Application Sheet 2 IP throttling for Sslpp EIU dataﬁll Table Liuinv Interdependency and auto-conﬁguration Table Liuinv dataﬁll Dataﬁll sequence and implicationsLink interface unit name Link interface unit type Message switch port Message switch cardLink interface unit number Location Software load name Link interface slotProcessor information Processor product engineering code Sheet 4 EIU MAC addresses Table Ipnetwrk IP addressesSample dataﬁll for table Liuinv Ipnetwrk Dataﬁll for table Ipnetwrk Internet Protocol network subnet range Computing module Internet ProtocolEthernet interface unit. Enter EIU Ethernet interface unit range. Enter Eiuinterface Parm ScrnflagDfltgtwyip Addr Gtwyipaddr Sample dataﬁll for table IpnetwrkIomnum Packlet Supplementary information Table Iprouter Dataﬁll Ethernet proxy address resolution Ethernet address resolution protocolTable Iphost Sample dataﬁll for table Iprouter Index IndexNodeidx Node index Node Node name Internet porotocol address SuperNode File processor indexTransmission control Protocol Connections Support Operating Switch Application processor Unix indexInternet protocol host identification for Computing module index Cmindex Ethernet interface unit index EiuindexInternet protocol address for node Lanaddr Second IP address for Eliu host Eliuindex Apux Nodename = MS Table Ipthron Message switch indexSample dataﬁll for table Iphost Msindex EIU datafill Local message switch node Transmit capacityReceive capacity SuperNode node OptionSynchronized and matched node index Application processor unit index Sample dataﬁll for table Ipthron Table IpprotoField descriptions for table Ipthron for EIU datafill Field Subfield or Entry Explanation and action Refinement Sample dataﬁll for table Ipproto IprsmtmoArprftmo Table Entypes Table EnsitesSample dataﬁll for table Ensites Alphanumeric Sample dataﬁll for table Entypes Table ExndinvEntype External node type Pmloads External node peripheral module type External node keyExternal node number External node name Internet Protocol address DMS boot protocolMachine address External node load file name Row Floor numberBay position External node information External node one-link alarm External node no-link alarmExternal node alarm scan points Critical alarm scan point Minor alarm scan point Major alarm scan pointSample dataﬁll for table Exndinv Sheet 5 103 EIU maintenance In-service state EIU diagnosticsOut-of-service diagnostics EIU MAP level In-service leaky bucket audit In-service diagnostics EIU overload control EIU sparing requirements EIU Eliu Automated system maintenance Manual system maintenance OMs relevant to EIU OA&M Logs relevant to EIU OA&M 111 Appendix a EIU installation checklist NTXF05AA EIU SoftwareConsult the DMS-100 PM Software Release Document Datafill 113 Appendix B EIU troubleshooting Troubleshooting checklist EIU troubleshooting checklist Problem Probable causeTools Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August 117 Appendix C Using FTP What is FTP? Automatic Record Length DetectionWhere DMS FTP on the DMS-100 switch Volume listingFTP cookbook File name conventions FTP commands on the DMS-100 switch Command Description DMS FTP client commands Obtaining the IP address of the SuperNode host Where Userid Is a valid userID for that host Procedure 1 Establishing an FTP session Step ActionTutorial basic FTP operations Ftp ‘nnn.nnn.nnn.nnn ’Page Ftp cd pathname Ftp dirFtp cd ‘/team/bin’ Ftp lcd pathname Where Pathname Is a valid directory path Example Tutorial moving ﬁlesIf the file Ftp lcd ‘/S00DTEMP’ If the filenameFtp lrecl Ftp get ‘ﬁle1.dmo ’ Ftp get ‘ﬁle1.txt54 ’Ftp put ‘RECORDFILE’ ‘jan18.log’ Ftp cd ‘ /team/bin’ Ftp get ‘ﬁle1.bin’ Procedure 7 Showing the status of server sessions Tutorial advanced operationsFtp get ‘ﬁle1.bin1020’ Procedure 9 Remove a server userID and unreserve a session Ftp svreserveFtpadduserinfo ‘johnh’ ‘johnh’ ‘/S00DTEMP’ y Where Userid Is the userID Example Procedure 10 Adding a userID with limited set of commandsFtpdeluserinfo ‘johnh’ Procedure 11 Adding a userID with a new command timeout Ftp commandmask mkdir set Ftpcommandtimeout FtpcommandmaskFTP operations reference WS pwd WS ftp IPaddressWS cd /pathname WS lcd /directory WS get filename WS asciiWS site Lrecl WS put filename Newfilename WS put filename.sosimage Filenameunipl WSput filename.image FilenameCM Ftpopen ‘IPaddress’ CM FTP ‘IPaddress’ CM lcd ‘/PATHNAME’ CM cd ‘pathname’CM lcd CM ls CM binary CM put filenameCM get ‘filename.load68k’ CM get ‘filename.bin1020’ 141 Appendix D Using telnet Telnet access to a switch Table Ipnetwrk Appendix D Using telnet Standard 03.01 August What is internetworking? Appendix E Understanding IP and IP addressing145 Routing and routed protocols What is routing? Mapping the network Planning overview Simple network map Choosing IP addresses Detailed network diagram Class Range Description IP address structure Class 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 IP addressing class D Address masks Address mask example Network node Network numbering example Simple network numbering Firewalls and network security Protocols related to Internet Protocol Variable-width subnetworks Internet control message protocol Reverse ARP Bootstrap ProtocolProxy ARP Inverse ARP Open shortest path ﬁrst Page 165 Appendix F EIU supported conﬁgurations Host conﬁguration Router conﬁgurations Host and router conﬁguration Interface conﬁguration part Subnet ClassA .networkidB .subnetX .hostZ 47.105.150.3 Overview Appendix G IP network number requestsConsiderations for obtaining IP addresses 171 NIC IP network number request form NIC IP address request formYour Application Must be Typed Sheet 2 Sheet 3 Sheet 4 Appendix G IP network number requests Standard 03.01 August Appendix H ASU background information Application-speciﬁc units and supported servicesLink interface unit Ethernet interface unit 25/X.75 link interface unit Frame relay interface unit Network interface unit Voice processor unit and AdasASUs and Cellular digital packet data Platforms External routersLink peripheral processor ASU LPP architecture On page 183 provides an overview of the Sslpp conﬁguration Single-shelf link peripheral processor Sslpp architecture SuperNode SE link interface shelf Shelf SNSE-LIS architecture Appendix I Obtaining a MAC address MAC address format185 EIU MAC address format How to get the MAC address for an EIU Appendix I Obtaining a MAC address Standard 03.01 August 189 List of terms List of terms LIS MTP List of terms UDP Page Ethernet Interface Unit