IP addressing class B | Cabletron Systems DMS-100 guide

154Appendix E: Understanding IP and IP addressing

Figure 31 IP addressing: class B

Base_Tel-11

Class B addresses range from 128.0.X.X to 191.255.X.X (standard network mask is 255.255.0.0), therefore, we can have 16384-2 class B networks each with 65536-2 hosts (if no subnets).

32

bits

10

networkid

hostid

2 bit

14 bits

16 bits

Field subnet in table IPNETWRK

Class B indicator

subnet id

hostid

2 to 14 bits

2 to 14 bits

For any class, the hostid can be split into a subnet id and a hostid depending on custom- er requirements. This helps simplify routing to areas. For class B network, the subnet id can range from 2 to 14 bits.

Note 1: Network ids and host ids which are comprised of all 1’s or all 0’s are reserved, therefore, subtract 2 from the subnet id and hostid to get the actual count.

Note 2: There are also special addresses that are reserved for ‘unconnected’ networks (networks that use IP but are not connected to the Internet). Class B networks

have 16 of these special addresses ranging from 172.16.0.0 to 172.31.0.0.

297-8991-910 Standard 03.01 August 1999

Image 154

Cabletron Systems DMS-100 manual IP addressing class B

Contents

Ethernet Interface Unit Page Ethernet Interface Unit Standard 03.01 August May Publication historyAugust March Vi Publication history Standard 03.01 August Contents EIU messaging protocols Chapter EIU datafill Appendix D Using telnet 141 EIU maintenance 103Appendix C Using FTP 117 Volume listing Appendix I Obtaining a MAC address 185 Appendix H ASU background information 177List of terms 189 List of figures Xii List of tables Xiii Xiv About this document When to use this documentHow to check the version and issue of this document References in this document Internet request for comment documents Xvi Possible loss of service What precautionary messages meanXvii Risk of electrocution How commands, parameters, and responses are representedRisk of personal injury Input prompt Variables Commands and ﬁxed parametersResponses Standard 03.01 August Introduction to the EIU Possible loss of network security Overview of the EIU System architecture IOC DMS-bus interface and expansionSLM SOS Unix EIU Inter-message switch links required with LPP Data communications interface architecture Ethernet interface data ﬂow LAN Introduction 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 shelf Ethernet interface card NT9X84 DMS SuperNode Flis with an EIU LPP NTEX22 CPU/IPF Ethernet physical interfacesAttachment unit interface-NT9X85AA MAU Unshielded twisted-pair NT9X85BA Capabilities, limitations, and restrictionsGrounding requirements EIU hardware capabilities and limitations Introduction to the EIU Limitations associated with maintenance System-wide limitations Limitations associated with protocols Routing information protocol Internet Protocol and Internet Control Message Protocol Feature packagingDMS-Core feature packages Package Title Description NTXF05AA DMS-bus inter-MS provisioning EIU provisioning requirementsSheet 2 Example of DMS-bus intermessage switch conﬁguration DMS-bus external MS provisioning EIU sparing and redundancy EIU provisioningNT9X17AA NT9X23BA User interface characteristics Service ordersBilling Possible loss of information Logs, alarms, and OMsAlarms 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 TCP UDP Icmp ARP FTP Telnet Snmp Bootp RIPFTS Ethernet Ethernet LAN Workstation TCP/UDP FTSDMS-bus TCP Boot protocol Supported protocols File transfer protocol Wsls Internet Protocol Telnet User datagram protocol Address resolution protocolTransmission control protocol Internet control message protocol MAC 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 IP throttling Protocol engineeringIP Screening TCP connection management UDP connection limits by SuperNode subsystem EIU APUSubsystem Maximum UDP connections 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 Link interface unit name Dataﬁll sequence and implicationsTable Liuinv dataﬁll Link interface unit type Link interface unit number Message switch cardMessage switch port Location Processor information Link interface slotSoftware load name Processor product engineering code EIU MAC addresses Sheet 4 IP addresses Table IpnetwrkSample dataﬁll for table Liuinv Dataﬁll for table Ipnetwrk Ipnetwrk Ethernet interface unit. Enter EIU Computing module Internet ProtocolInternet Protocol network subnet range Ethernet interface unit range. Enter Dfltgtwyip Parm ScrnflagEiuinterface Addr Iomnum Sample dataﬁll for table IpnetwrkGtwyipaddr Packlet Table Iprouter Supplementary information Dataﬁll Table Iphost Ethernet address resolution protocolEthernet proxy address resolution Sample dataﬁll for table Iprouter Nodeidx IndexIndex Node index Node name Node Transmission control Protocol File processor indexInternet porotocol address SuperNode Connections Application processor Unix index Support Operating SwitchInternet protocol host identification for Cmindex Computing module index Internet protocol address for node EiuindexEthernet interface unit index Lanaddr Eliuindex Second IP address for Eliu host Nodename = MS Apux Sample dataﬁll for table Iphost Message switch indexTable Ipthron Msindex EIU datafill Transmit capacity Local message switch nodeReceive capacity Synchronized and matched node index OptionSuperNode node Application processor unit index Field descriptions for table Ipthron for EIU datafill Table IpprotoSample dataﬁll for table Ipthron Field Subfield or Entry Explanation and action Refinement Iprsmtmo Sample dataﬁll for table IpprotoArprftmo Sample dataﬁll for table Ensites Table EnsitesTable Entypes Alphanumeric Entype Table ExndinvSample dataﬁll for table Entypes External node type Pmloads External node number External node keyExternal node peripheral module type External node name Machine address DMS boot protocolInternet Protocol address External node load file name Bay position Floor numberRow External node information External node alarm scan points External node no-link alarmExternal node one-link alarm Critical alarm scan point Sample dataﬁll for table Exndinv Major alarm scan pointMinor alarm scan point Sheet 5 EIU maintenance 103 Out-of-service diagnostics EIU diagnosticsIn-service state 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 Consult the DMS-100 PM Software Release Document SoftwareNTXF05AA EIU Datafill Appendix B EIU troubleshooting 113 EIU troubleshooting checklist Problem Probable cause Troubleshooting checklistTools Sheet 2 Appendix B EIU troubleshooting Standard 03.01 August Appendix C Using FTP 117 Automatic Record Length Detection What is FTP?Where DMS FTP cookbook Volume listingFTP on the DMS-100 switch File name conventions DMS FTP client commands FTP commands on the DMS-100 switch Command Description Obtaining 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 pathname Tutorial 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 timeout Ftpcommandmask FtpcommandtimeoutFTP operations reference WS cd /pathname WS ftp IPaddressWS pwd WS lcd /directory WS site Lrecl WS asciiWS get filename WS put filename Newfilename CM Ftpopen ‘IPaddress’ WSput filename.image FilenameWS put filename.sosimage Filenameunipl CM FTP ‘IPaddress’ CM lcd CM cd ‘pathname’CM lcd ‘/PATHNAME’ CM ls CM get ‘filename.load68k’ CM put filenameCM binary CM get ‘filename.bin1020’ Appendix D Using telnet 141 Telnet 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 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 Proxy ARP Bootstrap ProtocolReverse 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 Considerations for obtaining IP addresses Appendix G IP network number requestsOverview 171 NIC 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 Link interface unit Application-speciﬁc units and supported servicesAppendix H ASU background information Ethernet interface unit Frame relay interface unit 25/X.75 link interface unit Voice processor unit and Adas Network interface unitASUs and Cellular digital packet data External routers PlatformsLink peripheral processor 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 MAC 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 189 List of terms LIS MTP List of terms UDP Page Ethernet Interface Unit