System architecture | Cabletron Systems DMS-100 specs

Chapter 1: Introduction to the EIU 23

•Cellular digital packet data (CDPD). The CDPD service transports datagrams between the mobile and private/public data networks.

•Programmable service node (PSN). PSN is a ﬂexible platform that lets operating companies rapidly deploy advanced services into their network. Deployment is achieved through a service control unit (SCU). The SCU is an external computing platform that controls the call processing on the switch using a high-speed data link.

•Remote management system (RMS). RMS provides telnet and ﬁle transfer protocol (FTP) functionality to the DMS-250 switch. Telnet is a protocol for remote terminal access.

•Intelligent Call Manager (ICM). ICM provides the protocol support for Computer Telephony Integration applications (for example, Symposium Call Center Server, SSCS) in accessing the DMS via TCP/IP protocols.

System architecture

The data communications environment supports data links that are not tied to the call processing network functions of the switch. These links do not use the DMS network or line access capabilities. This characteristic is important when supporting OAM links. These links must become functional in the early stages of switch initialization and remain functional through all but catastrophic failures, including call processing failures.

The EIU is a gateway between the DMS-bus and an Ethernet that supports user data links. The EIU is a concentration point between remote peripherals (workstations, terminals, and routers) and the DMS-bus. The remote peripherals are not terminated on the EIU, but on concentrators. These remote peripherals allow the network engineers to connect alternate link levels and asynchronous terminal equipment (MAP terminals, printers, and so on) to the system. The Ethernet also provides a link between the DMS-100 switch and the workstations used for processing.

Figure 1 shows an overview of the architecture of the enhanced SuperNode system.

DMS-100 Family EIU User Guide TELECOM12

Image 23

Cabletron Systems DMS-100 manual System architecture

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August March Publication historyAugust May Vi Publication history Standard 03.01 August Contents Chapter EIU datafill EIU messaging protocols Volume listing EIU maintenance 103Appendix C Using FTP 117 Appendix D Using telnet 141 List of terms 189 Appendix H ASU background information 177Appendix I Obtaining a MAC address 185 List of figures Xii Xiii List of tables Xiv References in this document When to use this documentHow to check the version and issue of this document About this document Xvi Internet request for comment documents Xvii What precautionary messages meanPossible loss of service Input prompt How commands, parameters, and responses are representedRisk of personal injury Risk of electrocution Responses Commands and ﬁxed parametersVariables Standard 03.01 August Possible loss of network security Introduction to the EIU Overview of the EIU System architecture SOS Unix EIU DMS-bus interface and expansionSLM IOC Data communications interface architecture Inter-message switch links required with LPP LAN Ethernet interface data ﬂow Introduction to the EIU UTP PB Hardware descriptionAUI PB Front cards Rear paddle boardsSlot EIU 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 MAU Ethernet physical interfacesAttachment unit interface-NT9X85AA LPP NTEX22 CPU/IPF Grounding requirements Capabilities, limitations, and restrictionsUnshielded twisted-pair NT9X85BA EIU hardware capabilities and limitations Introduction to the EIU System-wide limitations Limitations associated with maintenance Routing information protocol Limitations associated with protocols NTXF05AA Feature packagingDMS-Core feature packages Package Title Description Internet Protocol and Internet Control Message Protocol Sheet 2 EIU provisioning requirementsDMS-bus inter-MS provisioning DMS-bus external MS provisioning Example of DMS-bus intermessage switch conﬁguration NT9X17AA NT9X23BA EIU provisioningEIU sparing and redundancy Billing Service ordersUser interface characteristics Log reports Logs, alarms, and OMsAlarms Possible loss of information Introduction to the EIU Standard 03.01 August EIU messaging protocols Software architecture Shows the structure of the DMS-100 switch EIU protocol stack FTS Ethernet FTP Telnet Snmp Bootp RIPTCP UDP Icmp ARP TCP TCP/UDP FTSDMS-bus Ethernet LAN Workstation Supported protocols Boot protocol File transfer protocol Wsls Telnet Internet Protocol Internet control message protocol Address resolution protocolTransmission control protocol User datagram protocol Internet addresses AddressingMAC addresses EIU messaging protocols What is the SuperNode network topology? How to get IP addresses for SuperNode Routing EIU messaging protocols APUX20 LIU7 APX LMSAPUX10 LIU7 Routing tables TCP connection management Protocol engineeringIP Screening IP throttling Subsystem Maximum UDP connections EIU APUUDP connection limits by SuperNode subsystem 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 Link interface unit type Dataﬁll sequence and implicationsTable Liuinv dataﬁll Link interface unit name Location Message switch cardMessage switch port Link interface unit number Processor product engineering code Link interface slotSoftware load name Processor information Sheet 4 EIU MAC addresses Sample dataﬁll for table Liuinv Table IpnetwrkIP addresses Ipnetwrk Dataﬁll for table Ipnetwrk Ethernet interface unit range. Enter Computing module Internet ProtocolInternet Protocol network subnet range Ethernet interface unit. Enter EIU Addr Parm ScrnflagEiuinterface Dfltgtwyip Packlet Sample dataﬁll for table IpnetwrkGtwyipaddr Iomnum Supplementary information Table Iprouter Dataﬁll Sample dataﬁll for table Iprouter Ethernet address resolution protocolEthernet proxy address resolution Table Iphost Node index IndexIndex Nodeidx Node Node name Connections File processor indexInternet porotocol address SuperNode Transmission control Protocol Internet protocol host identification for Support Operating SwitchApplication processor Unix index Computing module index Cmindex Lanaddr EiuindexEthernet interface unit index Internet protocol address for node Second IP address for Eliu host Eliuindex Apux Nodename = MS Msindex Message switch indexTable Ipthron Sample dataﬁll for table Iphost EIU datafill Receive capacity Local message switch nodeTransmit capacity Application processor unit index OptionSuperNode node Synchronized and matched node index Field Subfield or Entry Explanation and action Refinement Table IpprotoSample dataﬁll for table Ipthron Field descriptions for table Ipthron for EIU datafill Arprftmo Sample dataﬁll for table IpprotoIprsmtmo Alphanumeric Table EnsitesTable Entypes Sample dataﬁll for table Ensites External node type Table ExndinvSample dataﬁll for table Entypes Entype Pmloads External node name External node keyExternal node peripheral module type External node number External node load file name DMS boot protocolInternet Protocol address Machine address External node information Floor numberRow Bay position Critical alarm scan point External node no-link alarmExternal node one-link alarm External node alarm scan points Sheet 5 Major alarm scan pointMinor alarm scan point Sample dataﬁll for table Exndinv 103 EIU maintenance EIU MAP level EIU diagnosticsIn-service state Out-of-service diagnostics 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 Datafill SoftwareNTXF05AA EIU Consult the DMS-100 PM Software Release Document 113 Appendix B EIU troubleshooting Tools Troubleshooting checklistEIU troubleshooting checklist Problem Probable cause Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August 117 Appendix C Using FTP Where What is FTP?Automatic Record Length Detection DMS File name conventions Volume listingFTP on the DMS-100 switch FTP cookbook FTP commands on the DMS-100 switch Command Description DMS FTP client commands Obtaining the IP address of the SuperNode host Ftp ‘nnn.nnn.nnn.nnn ’ Procedure 1 Establishing an FTP session Step ActionWhere Userid Is a valid userID for that host Tutorial basic FTP operationsPage Ftp lcd pathname Ftp dirFtp cd pathname Ftp cd ‘/team/bin’ 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 Procedure 11 Adding a userID with a new command timeout Ftp commandmask mkdir set FTP operations reference FtpcommandtimeoutFtpcommandmask WS lcd /directory WS ftp IPaddressWS pwd WS cd /pathname WS put filename Newfilename WS asciiWS get filename WS site Lrecl CM FTP ‘IPaddress’ WSput filename.image FilenameWS put filename.sosimage Filenameunipl CM Ftpopen ‘IPaddress’ CM ls CM cd ‘pathname’CM lcd ‘/PATHNAME’ CM lcd CM get ‘filename.bin1020’ CM put filenameCM binary CM get ‘filename.load68k’ 141 Appendix D Using telnet 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 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 Inverse ARP Bootstrap ProtocolReverse ARP Proxy 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 47.105.150.3 171 Appendix G IP network number requestsOverview Considerations for obtaining IP addresses 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 Ethernet interface unit Application-speciﬁc units and supported servicesAppendix H ASU background information Link interface unit 25/X.75 link interface unit Frame relay interface unit ASUs and Cellular digital packet data Network interface unitVoice processor unit and Adas Link peripheral processor PlatformsExternal routers 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 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 189 List of terms List of terms LIS MTP List of terms UDP Page Ethernet Interface Unit