Ethernet physical interfaces, Mau | Cabletron Systems DMS-100

32Chapter 1: Introduction to the EIU

Figure 8 Ethernet interface architecture

LPP

NTEX22

CPU/IPF

Ethernet

P-bus

Ethernet memory controller

Multiport buffer memory

Ethernet controller

										Ethernet




				MAU						coaxial cable

Ethernet physical interfaces

The physical interface to the Ethernet system is deﬁned by the paddle board located behind the EIC. The interfaces available are described in the following sections.

Attachment unit interface—NT9X85AA

This card is a 15-pin D-type connector that provides the interface between the Ethernet controller and the media access unit (MAU). This is the most generic interface and supported as an industry standard (IEEE 802.3 10Base5 implementation).

Note: This interface is compatible with all implementations of Ethernet through external equipment.

The MAU is different depending on the implementation of the LAN.

For a 10Base5 coax LAN, the MAU has coaxial connections on either side using ﬁeld installed N-type connectors. The AUI connection is on an adjacent side. The coax cable is about 0.5 in. in diameter and has a bending radius of

0.5m and the minimum amount of cable between transceivers is 2.5 m. These physical restrictions must be taken into account when installing the MAU. MAUs have a range of 500 m per bus segment which may be bridged together to form a LAN that is a maximum of 2500 m long. The disadvantages of this implementation are installation and difﬁculty of maintenance.

297-8991-910 Standard 03.01 August 1999

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Cabletron Systems DMS-100 manual Ethernet physical interfaces, Attachment unit interface-NT9X85AA, LPP NTEX22 CPU/IPF, Mau

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August Publication history AugustMay March Vi Publication history Standard 03.01 August Contents EIU messaging protocols Chapter EIU datafill EIU maintenance 103 Appendix C Using FTP 117Appendix D Using telnet 141 Volume listing List of terms 189 Appendix H ASU background information 177Appendix I Obtaining a MAC address 185 List of figures Xii List of tables Xiii Xiv When to use this document How to check the version and issue of this documentAbout this document References in this document Internet request for comment documents Xvi Xvii What precautionary messages meanPossible loss of service How commands, parameters, and responses are represented Risk of personal injuryRisk of electrocution Input prompt Responses Commands and ﬁxed parametersVariables Standard 03.01 August Introduction to the EIU Possible loss of network security Overview of the EIU System architecture DMS-bus interface and expansion SLMIOC SOS Unix EIU Inter-message switch links required with LPP Data communications interface architecture Ethernet interface data ﬂow LAN Introduction 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 shelf Ethernet interface card NT9X84 DMS SuperNode Flis with an EIU Ethernet physical interfaces Attachment unit interface-NT9X85AALPP NTEX22 CPU/IPF MAU Grounding requirements Capabilities, limitations, and restrictionsUnshielded twisted-pair NT9X85BA EIU hardware capabilities and limitations Introduction to the EIU Limitations associated with maintenance System-wide limitations Limitations associated with protocols Routing information protocol Feature packaging DMS-Core feature packages Package Title DescriptionInternet Protocol and Internet Control Message Protocol NTXF05AA Sheet 2 EIU provisioning requirementsDMS-bus inter-MS provisioning Example of DMS-bus intermessage switch conﬁguration DMS-bus external MS provisioning NT9X17AA NT9X23BA EIU provisioningEIU sparing and redundancy Billing Service ordersUser interface characteristics Logs, alarms, and OMs AlarmsPossible loss of information Log reports Introduction to the EIU Standard 03.01 August EIU messaging protocols Shows the structure of the DMS-100 switch EIU protocol stack Software architecture FTS Ethernet FTP Telnet Snmp Bootp RIPTCP UDP Icmp ARP TCP/UDP FTS DMS-busEthernet LAN Workstation TCP Boot protocol Supported protocols File transfer protocol Wsls Internet Protocol Telnet Address resolution protocol Transmission control protocolUser datagram protocol Internet control message protocol Internet 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 Protocol engineering IP ScreeningIP throttling TCP connection management Subsystem Maximum UDP connections EIU APUUDP connection limits by SuperNode subsystem FTP session control Protocol buffer engineering Receive 1518 Icbm common pool 1024 128 Transmit TCP own IP throttling IP throttling for LPP IP throttling for Sslpp Application Sheet 2 EIU dataﬁll Interdependency and auto-conﬁguration Table Liuinv Dataﬁll sequence and implications Table Liuinv dataﬁllLink interface unit name Link interface unit type Message switch card Message switch portLink interface unit number Location Link interface slot Software load nameProcessor information Processor product engineering code EIU MAC addresses Sheet 4 Sample dataﬁll for table Liuinv Table IpnetwrkIP addresses Dataﬁll for table Ipnetwrk Ipnetwrk Computing module Internet Protocol Internet Protocol network subnet rangeEthernet interface unit. Enter EIU Ethernet interface unit range. Enter Parm Scrnflag EiuinterfaceDfltgtwyip Addr Sample dataﬁll for table Ipnetwrk GtwyipaddrIomnum Packlet Table Iprouter Supplementary information Dataﬁll Ethernet address resolution protocol Ethernet proxy address resolutionTable Iphost Sample dataﬁll for table Iprouter Index IndexNodeidx Node index Node name Node File processor index Internet porotocol address SuperNodeTransmission control Protocol Connections Internet protocol host identification for Support Operating SwitchApplication processor Unix index Cmindex Computing module index Eiuindex Ethernet interface unit indexInternet protocol address for node Lanaddr Eliuindex Second IP address for Eliu host Nodename = MS Apux Message switch index Table IpthronSample dataﬁll for table Iphost Msindex EIU datafill Receive capacity Local message switch nodeTransmit capacity Option SuperNode nodeSynchronized and matched node index Application processor unit index Table Ipproto Sample dataﬁll for table IpthronField descriptions for table Ipthron for EIU datafill Field Subfield or Entry Explanation and action Refinement Arprftmo Sample dataﬁll for table IpprotoIprsmtmo Table Ensites Table EntypesSample dataﬁll for table Ensites Alphanumeric Table Exndinv Sample dataﬁll for table EntypesEntype External node type Pmloads External node key External node peripheral module typeExternal node number External node name DMS boot protocol Internet Protocol addressMachine address External node load file name Floor number RowBay position External node information External node no-link alarm External node one-link alarmExternal node alarm scan points Critical alarm scan point Major alarm scan point Minor alarm scan pointSample dataﬁll for table Exndinv Sheet 5 EIU maintenance 103 EIU diagnostics In-service stateOut-of-service diagnostics EIU MAP level In-service diagnostics In-service leaky bucket audit EIU overload control EIU sparing requirements Automated system maintenance EIU Eliu Manual system maintenance Logs relevant to EIU OA&M OMs relevant to EIU OA&M Appendix a EIU installation checklist 111 Software NTXF05AA EIUConsult the DMS-100 PM Software Release Document Datafill Appendix B EIU troubleshooting 113 Tools Troubleshooting checklistEIU troubleshooting checklist Problem Probable cause Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August Appendix C Using FTP 117 Where What is FTP?Automatic Record Length Detection DMS Volume listing FTP on the DMS-100 switchFTP cookbook File name conventions DMS FTP client commands FTP commands on the DMS-100 switch Command Description Obtaining 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 pathname If 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 timeout FTP operations reference FtpcommandtimeoutFtpcommandmask WS ftp IPaddress WS pwdWS cd /pathname WS lcd /directory WS ascii WS get filenameWS site Lrecl WS put filename Newfilename WSput filename.image Filename WS put filename.sosimage FilenameuniplCM Ftpopen ‘IPaddress’ CM FTP ‘IPaddress’ CM cd ‘pathname’ CM lcd ‘/PATHNAME’CM lcd CM ls CM put filename CM binaryCM get ‘filename.load68k’ CM get ‘filename.bin1020’ Appendix D Using telnet 141 Telnet 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 protocols Planning overview Mapping the network Simple network map Detailed network diagram Choosing IP addresses IP address structure Class Range Description 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 Address masks IP addressing class D Network numbering example Address mask example Network node Firewalls and network security Simple network numbering Variable-width subnetworks Protocols related to Internet Protocol Internet control message protocol Bootstrap Protocol Reverse ARPProxy ARP Inverse ARP Open shortest path ﬁrst Page Appendix F EIU supported conﬁgurations 165 Host 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 171 Your 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 Application-speciﬁc units and supported services Appendix H ASU background informationLink interface unit Ethernet interface unit Frame relay interface unit 25/X.75 link interface unit ASUs and Cellular digital packet data Network interface unitVoice processor unit and Adas Link peripheral processor PlatformsExternal routers LPP architecture ASU Single-shelf link peripheral processor On page 183 provides an overview of the Sslpp conﬁguration SuperNode SE link interface shelf Sslpp architecture SNSE-LIS architecture Shelf 185 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 189 List of terms LIS MTP List of terms UDP Page Ethernet Interface Unit