LAN-to-LAN Routing for Central-Site and Branch Office Networks Model MTASR3 User Guide
User Guide 88302500 Revision A RouteFinder (Model MTASR3) This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved. Copyright © 1998, by Multi-Tech Systems, Inc. Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech Systems, Inc.
Contents Chapter 1 - Introduction and Description Introduction ....................................................................................................................................................... 6 Preview of this Guide .................................................................................................................................. 6 Related Documentation ......................................................................................................................
Chapter 5 - Remote Configuration and Management Introduction ..................................................................................................................................................... 48 Modem-Based Remote Configuration Procedure ..................................................................................... ....... 48 LAN-Based Remote Configuration ..................................................................................................................
Chapter 1 - Introduction and Description
RouteFinder MTASR3 User Guide Introduction Welcome to Multi-Tech's new RouteFinder™, Model MTASR3, an IP/IPX router for interconnecting LANs using switched or dedicated wide area telecommunications links. The RouteFinder is a multiport router that provides a single connection to an Ethernet LAN and routes packets over three WAN links. The RouteFinder can also be configured for frame relay which can use up to 16 virtual WAN ports.
Chapter 1 - Introduction and Description Chapter 4 - RouteFinder Software Chapter 4 describes the RouteFinder software package designed for the Windows® environment. This software includes five functions for Configuration Port Setup, Remote User Data Base, Router Configuration, SNMP Manager, and WAN Device Configuration plus two download functions for downloading either the default setup or a firmware update.
RouteFinder MTASR3 User Guide Front Panel The front panel has four groups of LEDs that provide the status of the LAN connection and link activity. Two other LEDs indicate the general status of the RouteFinder. The Ethernet LAN LEDs display the activity of the LAN in whether the RouteFinder is connected to the LAN, transmitting or receiving packets, and if a collision is in progress.
Chapter 1 - Introduction and Description Back Panel The cable connections for the RouteFinder are made at the back panel. The three types of cables are used on the RouteFinder include: the Command Port, Link 1 (2 and 3), and the Ethernet. The cable connections are shown in Figure 1-3 and defined in the following groups. LINK 3 RS232/V.35 ETHERNET 10BASE T LINK 2 RS232/V.35 AUI COMMAND PORT LINK 1 RS232/V.
RouteFinder MTASR3 User Guide Shunts A shunt on each of the Link ports enables the same connector to be configured for either EIA-232C/D signaling or ITU-T V.35 electrical interface signaling. The EIA-232C/D signaling is intended for data rates of 19.2 Kbps or less and cable lengths of 50 feet or less. The ITU-T V.35 signaling levels are generally more reliable for high speed data and/or longer cables. For higher speeds and/or longer distances, the V.35 is generally preferred.
Chapter 1 - Introduction and Description Specifications • Routing Protocols - IP and IPX, and bridging for all others • Supports Frame relay networks, T1/E1, ISDN, and dial-up connections on the WAN port • Routes TCP, UDP, ICMP, ARP, Telnet, DNS, RIP version 2, and IPX packets • Bridges non-IP/IPX packets that arrive in 802.2, 802.
RouteFinder MTASR3 User Guide 12 MTASR3
Chapter 2 - Installation
RouteFinder MTASR3 User Guide Introduction This chapter is organized in the way you will unpack and cable your RouteFinder. The unpacking section describes the contents of the shipping box and shows how the RouteFinder is packaged. The installation procedure describes each cable connection and shows where that cable is connected to the RouteFinder. If additional RAM is needed on your RouteFinder, a detailed procedure is provided describing how to install a second SIMM. Safety Warning 1.
Chapter 2 - Installation Cabling your RouteFinder Before you attach the cables to your RouteFinder, you have to determine two things: if the WAN ports are to be used with a V.35 interface and if additional RAM needs to be added. Both of these considerations require that the PC board be removed from its enclosure before you connect your external cables. If the V.35 interface is going to be used, perform the procedure in Table 2-2 to move the shunt(s) from their default (RS232C/D) position(s) to the V.
RouteFinder MTASR3 User Guide Adding Additional RAM A second SIMM connector is provided for adding additional RAM to the RouteFinder. The procedure for adding additional RAM is provided in Table 2-2. Table 2-2. Adding Additional RAM Procedure Step Procedure 1 Ensure that the external power supply is disconnected from the RouteFinder. 2 Turn the RouteFinder upside down and remove the cabinet mounting screw at the center back of the cabinet.
Chapter 2 - Installation Changing Shunt Positions Table 2-3 provides the procedure for moving the link shunts when the RouteFinder is being connected to an external composite link device with a V.35 interface. Table 2-3. V.35 Shunt Procedure Step Procedure 1 Ensure that the external power supply is disconnected from the RouteFinder. 2 Turn the unit upside down and remove the mounting screw. See Figure 2-5. ® Tech Systems Enclosure Mounting Screw (center, back) Figure 2-5.
RouteFinder MTASR3 User Guide ® ech TSystems Enclosure Mounting Screw (center, back) Figure 2-7. Replacing Cabinet Mounting Screw 8 18 Turn the unit right side up and return to Table 2-1 to connect the cables.
Chapter 3 - Software Loading and Configuration
RouteFinder MTASR3 User Guide Introduction The following loading procedure does not provide every screen or option in the process of installing the RouteFinder software. It is assumed that a technical person with a thorough knowledge of Windows and the software loading process is doing the installation. Loading your Software 1. Run Windows on the PC that is connected to the RouteFinder’s Command Port. 2. Insert the RouteFinder 3.00 Disk 1 into the disk drive on the PC that is connected to the RouteFinder.
Chapter 3 - Software Loading and Configuration 8. The next dialog box enables you to designate the COM port of the PC that is connected to the RouteFinder. On the Select Port field, click the down arrow and choose the COM port of your PC (COM1 -- COM4) that is connected to the RouteFinder. Click OK to continue. 9. The Setup complete dialog box is displayed. Click the Finish button to continue. 10. The following message is displayed. 11. Click No to skip the upgrade process.
RouteFinder MTASR3 User Guide 12. Click Yes to download the default setup. Clicking on the No button prevents the defaults from being downloaded to the RouteFinder. 13. The Novell IPX Protocol Default Setup dialog box appears. Note: To configure your RouteFinder, you now will use a series of dialog boxes -- Novell IPX Protocol Default Setup, IP Protocol Default Setup, and WAN Ports Default Setup. 14. If your network protocol is IPX, continue with the following steps.
Chapter 3 - Software Loading and Configuration Note: Unlike the Ethernet port, the WAN ports do not have the capability of learning the network number (i.e., the WAN ports do not have a file server). 18. Click OK when you are satisfied with your selections. 19. If you clicked OK from the Novell IPX Protocol Default Setup dialog box (step 13), the IP Protocol Default Setup dialog box is now displayed. 20. To change the IP parameters, proceed to the next step.
RouteFinder MTASR3 User Guide Next, the Rebooting dialog box is displayed. 28. Check to ensure that the Fail LED on the RouteFinder goes Off after the download is complete and the RouteFinder is rebooted (the Rebooting dialog box goes away). 29. Win3.1 users - you are returned to your Program Manager where the RouteFinder Program Group and Program Items (RouteFinder icons) have been created. Win95/NT users - you are returned to your desktop. Your RouteFinder is operational at this time.
Chapter 3 - Software Loading and Configuration Setting Up Your Remote User Database The remote user database supports remote dial-in users for user name, password, and port availability. Each dial-in user needs an entry in this database. You can add remote users, remove users, or edit information in the database. 1. Win3.1 users - From the Program Manager, click the Remote User Data Base icon. Win95/NT users - From your desktop, click the Start | Programs | RouteFinder | Remote User Data Base.
RouteFinder MTASR3 User Guide User Name. The User Name can have as many as 39 characters. All printable characters are permitted with the restriction that no blanks are allowed in the user name. In dial-in and dial-out applications, the user name is treated as a case insensitive string. User Password. The User Password can have as many as 7 characters. In places where the password is used as a character string, it is treated as a case insensitive string.
Chapter 4 - RouteFinder Software
RouteFinder MTASR3 User Guide Introduction This chapter describes the RouteFinder’s software from an applications standpoint, showing how to make changes in the configuration with recommendations on the impact of any such changes. The major configuration parameters were set when the software was loaded into your PC and the setup configuration was downloaded to the RouteFinder at the conclusion of the software installation. The RouteFinder software is designed for the Microsoft ® Windows ® environment.
Chapter 4 - RouteFinder Software Download Firmware This utility enables you to download the firmware to the RouteFinder. This may be necessary in the case of repair or upgrade. To download the firmware, choose Download Firmware from the RouteFinder program group, and the Open dialog box is displayed (if the RouteFinder is running, you will be queried to reboot to update firmware; click OK to proceed and the Open dialog will be displayed).
RouteFinder MTASR3 User Guide Router Configuration The Router Setup menu has 13 buttons (two rows of five buttons plus one row with three buttons) that enable you to display and change the protocol stacks, define the output of the RouteFinder, perform network management functions, test the communications link, print messages received from the target RouteFinder, and download setup information to the RouteFinder.
Chapter 4 - RouteFinder Software IP Setup The IP Port Setup dialog box enables you to change the IP routing capabilities, add or delete logical WANs, enable the DHCP server, assign DNS address, and define default routes. The initial routing capabilities were established during the software installation. However, you can change the IP routing parameters by clicking the Advanced tab and changing, for example, the RIP Response Time or RIP Route Aging Time.
RouteFinder MTASR3 User Guide respective metric set to 16 (defined as infinity) is enabled/disabled by this parameter. Poisoned reverse is a method used by RIP to improve the rate of convergence of the routing tables of interconnected IP routers.
Chapter 4 - RouteFinder Software The IP Port Setup Advanced tab enables you to set up various configuration options for the IP routing protocol. The options that you select here apply to all ports on which IP routing takes place. In most cases, you should not have to change any of the timers (i.e., default TTL, reassembly timeout, RIP response time and RIP route aging time).
RouteFinder MTASR3 User Guide The RIP Route Aging Time text box defines the time interval that must expire before an unused route entry created by RIP is aged from the route table. The aging timer starts from the addition, reference, or change of an RIP based routed entry and has a recommended value of 180 seconds. The Default Route group defines the default route for the RouteFinder.
Chapter 4 - RouteFinder Software This dialog box allows you to set up the RouteFinder as an Autonomous System Border Router; also included here are the message printing controls and buttons that open Area Setup and OSPF Port Setup dialog boxes. Selecting Autonomous System Border Router enables the RouteFinder as an AS (Autonomous System) border router, capable of exchanging routing information with routers in other Autonomous Systems.
RouteFinder MTASR3 User Guide IPX Setup The IPX Virtual Port Setup dialog box is used to control the four frame types and set up the three WAN ports of the RouteFinder. The Advanced tab controls the routing of the protocol and auto learn of Ethernet network numbers, defines the broadcast name of the RouteFinder, and IPX filtering.
Chapter 4 - RouteFinder Software operation, both WAN network numbers have to be the same and unique. If bridging of IPX packets is desired, IPX routing must be disabled and frame type support for the frame type must be enabled. If there is a server on the local segment, then IPX network number auto learn should be enabled. If there is no server, or if for some reason the RouteFinder comes up before the server does, the RouteFinder will default to some random network numbers after a short period of time.
RouteFinder MTASR3 User Guide Spanning Tree Setup When Bridging is enabled, the Spanning Tree Setup dialog box controls simple transparent bridging between two remote Ethernet LANs. However, if your internetwork contains any loops or redundant links, then the Spanning Tree Algorithm must also be enabled. If you use only the IP and IPX protocols, leave bridging disabled to allow the RouteFinder to operate more efficiently.
Chapter 4 - RouteFinder Software WAN Port Setup The WAN Port Setup dialog box controls how each WAN port is configured. If a port is configured for point-to-point operation, then the mode can be either synchronous or asynchronous. If the mode is asynchronous, then the connection method can be either Answering or Dialing. If the connection method is dialing, then a number to be dialed has to be entered in the Dial Number field and the correct modem type designated in the Modem Types field.
RouteFinder MTASR3 User Guide Point-to-Point Setup The PPP Port Setup dialog box controls the WAN port protocol, dial on demand, and remote port setup. The WAN port protocol can be either Point-to-Point Protocol (PPP) or Serial Line Internet Protocol (SLIP). Of these two protocols, PPP is the more robust as it allows the endpoints to negotiate the use of the link and protocol parameters in a standardized way and also allows for standardized encapsulation of the packets.
Chapter 4 - RouteFinder Software Frame Relay Setup This dialog box displays the Management Type, the details for that management type, and the number of active DLCIs. When it is connected to an active frame relay service, the RouteFinder can detect the Management Type and any available DLCIs. Therefore, it is important not to change any frame relay parameters, and when adding new DLCIs you must be sure they agree with the way your frame relay service is provisioned.
RouteFinder MTASR3 User Guide Frame Relay DLCI This dialog box initially displays a single default DLCI that is mapped to a default IP Address, STP WAN Number, with a CIR setting of 56K, a Be value of zero, and the Mode set to “Adhere to CIR.” To manually add a new DLCI Number, enter the number in the DLCI field; leading zeros are not required.
Chapter 4 - RouteFinder Software Applications Setup In addition to local configuration, the RouteFinder supports various applications that enable it to be configured remotely from anywhere on the connected Internetwork. To manage these applications, click Others on the Router Setup screen. The Applications Setup dialog box appears. Enter a valid Router Password to make changes through the Applications Setup dialog box. Verify that the desired applications are enabled.
RouteFinder MTASR3 User Guide Filtering The IP Filtering Setup dialog provides tabs that let you configure the RouteFinder so that IP packets that are received by the server can be selectively filtered or forwarded based on their addresses or by the protocol ports to which they are destined. The three filtering methods are: • IP Protocol Port Based Filtering - In this method, IP packets can be filtered based on their specific purposes; e.g.
Chapter 4 - RouteFinder Software Diagnostics The RouteFinder is equipped with a built-in diagnostics utility that can be accessed through the COM port of your PC (remote users cannot access the diagnostics). Click the Built-in Test button on the Router Setup menu and the Diagnostics dialog box is displayed. In the Test Port group, select the port (Ethernet, WAN 1, WAN 2, or WAN 3) you want to test, then click the Test button to start diagnostic testing.
RouteFinder MTASR3 User Guide Scripting To enable scripting, click WAN from the Router Setup menu, then click the desired WAN tab (WAN 1, WAN 2, or WAN 3). Click the Script Enable check box to enable scripting on this WAN port, then disable Direct Connect / Leased Line. Click the now-active Script button to access the scripting options. The Script Dialog menu is displayed. From this menu, you can edit, compile and download scripts.
Chapter 5 - Remote Configuration and Management
RASFinder User Guide Introduction This chapter provides procedures for changing the configuration of a remote RouteFinder. Remote configuration allows a PC at one site (local site) to dial a remote RouteFinder and change the configuration of that remote unit. Remote configuration can be accomplished either directly through the LAN or remotely using modems.
Chapter 5 - Remote Configuration and Management different from the defaults in the dialog box, refer to your modem user documentation and change the default values to match your modem. Click OK when you are satisfied with all your selections. 6 You are returned to the Windows program. Start the RouteFinder Configuration program. Windows 3.1x: Double click the RouteFinder Configuration icon in the Program Manager. Windows 95: Click Start | Programs | RouteFinder | RouteFinder Configuration.
RASFinder User Guide LAN-Based Remote Configuration Windows Sockets Compliant TCP/IP Stack The configuration program requires a Windows Sockets compliant TCP/IP stack. Microsoft provides a TCP/IP stack free for Windows for Workgroups 3.11. TCP/IP protocol software must be installed and functional before the configuration program can be used. 1 You must assign an Internet (IP) address for the PC and for each node that will be managed by the configuration program.
Chapter 5 - Remote Configuration and Management 6 The RouteFinder Setup dialog box is then displayed. This is the dialog box for the remote RouteFinder. You can select any of the available buttons and change the configuration (or setup) and download the changes to the remote RouteFinder. Refer to Chapter 4 for a description of the RouteFinder software. For definitions of each dialog box or fields within a dialog box, refer to the on-line helps provided in the software.
RASFinder User Guide Remote Management This section describes typical client applications that can be used to configure the RouteFinder remotely. It is important to note that although any subsequent changes to configuration can be made using these applications, the initial setup and configuration of the RouteFinder must be done on the local PC, using the RouteFinder software provided with your unit.
Chapter 5 - Remote Configuration and Management Router Management The Router Management Menu provides five functional options in addition to the option of escaping and closing the Telnet session. Dial-Out The Dial-out option (Option 1) on the Router Management Menu enables a Telnet user to configure one of the WAN ports for a dial-out session. The default configuration of 115200 bps, 8N1 can be used for the dial-out session, or the user can specify each parameter for the port (e.g.
RASFinder User Guide When the Welcome screen appears, click the word Login to gain access to the RouteFinder. The Enter Network Password screen appears. Enter your User name and Password, then click OK to go to the RouteFinder Configuration menu. Note: The first user to access the RouteFinder will have read/write rights over the unit. All subsequent users will have read only rights, and therefore, some of the options within the WEB interface will be inactive (i.e., will not be linked).
Chapter 6 - Service, Warranty and Tech Support
RouteFinder MTASR3 User Guide Introduction This chapter starts out with statements about your RouteFinder two-year warranty. The next section, Tech Support, should be read carefully if you have questions or problems with your RouteFinder. It includes the technical support phone numbers, space for recording your product information, and an explanation of how to send in your RouteFinder should you require service.
Chapter 6 - Service, Warranty and Tech Support Tech Support Multi-Tech has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, call 1-800-9722439. Please fill out the RouteFinder information (below), and have it available when you call. If your RouteFinder requires service, the tech support specialist will guide you on how to send in your RouteFinder (refer to the next section).
RouteFinder MTASR3 User Guide Service If your tech support specialist decides that service is required, your RouteFinder may be sent (freight prepaid) to our factory. Return shipping charges will be paid by Multi-Tech Systems. Include the following with your RouteFinder: • a description of the problem. • return billing and return shipping addresses. • contact name and phone number. • check or purchase order number for payment if the RouteFinder is out of warranty.
Chapter 6 - Service, Warranty and Tech Support The Multi-Tech BBS For customers who do not have Internet access, Multi-Tech maintains a bulletin board system (BBS) that mirrors its FTP site. Information available from the BBS includes new product information, product upgrade files, and problem-solving tips. The phone number for the Multi-Tech BBS is (800) 392-2432 (USA and Canada) or (612) 785-3702 (international and local).
RouteFinder MTASR3 User Guide 8. When the download is complete, press ENTER to return to the File Menu. 9. To exit the BBS, type G and press ENTER. About the Internet If you prefer to receive technical support via the Internet, you can contact Tech Support via e-mail at the following address: http:\\www.multitech.com\_forms\email_tech_support.htm Multi-Tech’s presence includes a Web site at: http://www.multitech.com and an ftp site at: ftp://ftp.multitech.com The ftp server mirrors the Multi-Tech BBS.
Appendixes
RouteFinder MTASR3 User Guide Appendix A - Cabling Diagrams Command Port Cable COMMAND PORT PIN NO. To COMMAND PORT Connector PIN NO. 1 1 2 2 TRANSMIT DATA (BA) 3 3 RECEIVE DATA (BB) 4 4 5 5 6 6 7 7 8 8 To DTE Device (Terminal Device; e.g.
Appendixes Appendix B - Script Language The script file can be used to automate certain operations. The script file is a text file containing a sequence of commands. The structure of a script file is succinctly expressed by the following grammar.
RouteFinder MTASR3 User Guide the argument name in the formal parameter list by the keyword VAR; otherwise the argument is passed by value. Only variables can be passed by address. Expressions like A+B, where A and B are integer variables can be passed by value but cannot be passed by address. Two basic types of variables are supported: INTEGER and STRING In the STRING, since the ASCII null character is internally used to indicate the end of the sequence, it cannot be part of the string.
Appendixes Appendix C - Regulatory Information Class A Statement FCC Part 15 NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
RouteFinder MTASR3 User Guide Appendix D - AT Command Summary This section summarizes your modem’s AT commands. For detailed information on the commands, download ZPXHELP.EXE from the Multi-Tech BBS (see “Call the Multi-Tech BBS” in Chapter 3). AT Commands Command: +++AT Escape Sequence Values: n/a Description: Puts the modem in command mode (and optionally issues a command) while remaining online. Type +++AT and up to ten command characters, then press ENTER.
Appendixes Dial string modifiers: L Redial last number. (Must be placed immediately after ATD.) P Pulse-dial following numbers in command . T Tone-dial following numbers in command (default). V Switch to speakerphone mode and dial the following number. Use ATH command to hang up. W Wait for a new dial tone before continuing to dial. (X2, X4, X5, X6, or X7 must be selected.) S Dial a phone number previously stored using the &Zn=x command (see &Zn=x command for further information). The range of n is 0-3.
RouteFinder MTASR3 User Guide L3 Select high volume. Command: Mn Values: Default: Description: M0 M1 M2 M3 Monitor Speaker Mode n = 0, 1, 2, or 3 1 Speaker always off. Speaker on until carrier signal detected. Speaker always on when modem is off-hook. Speaker on until carrier is detected, except while dialing. Command: Nn Values: Default: Description: N0 Modulation Handshake n = 0 or 1 1 Modem performs handshake only at communication standard specified by S37 and the B command.
Appendixes Command: Yn Values: Default: Description: Y0 Y1 Long Space Disconnect n=0 0 Disable sending or responding to long space break signal on disconnect. Enable sending or responding to long space break signal on disconnect. (Not supported.) Command: Zn Values: Default: Description: Z0 Z1 Modem Reset n = 0 or 1 None Reset modem to profile saved by the last &W command. Same as Z0. Command: &Bn Values: Default: Description: &B0 &B1 V.32 Auto Retrain n=1 1 Disable V.32 auto retrain. (Not supported.
RouteFinder MTASR3 User Guide Defaults: Description: &M0 &M1 0 Asynchronous mode. Reserved—responds ERROR. Command: &Qn Values: Defaults: Description: &Q0 &Q5 &Q6 Asynchronous Communications Mode n = 0, 5, or 6 5 Asynchronous with data buffering. Same as \N0. Error control with data buffering. Same as \N3. Asynchronous with data buffering. Same as \N0. Command: &Sn Values: Default: Description: &S0 &S1 Data Set Ready (DSR) Control n = 0 or 1 0 Force DSR high (on). Let DSR follow CD.
Appendixes Default: Description: \K5 5 Modem sends break signal received from the DTE to the remote modem. Command: \Nn Values: Default: Description: \N0 \N1 \N2 \N3 \N4 \N5 \N7 Error Correction Mode Selection n = 0–5, or 7 3 Non-error correction mode with data buffering (same as &Q6). Direct mode. MNP reliable mode. V.42/MNP auto-reliable mode. V.42 reliable mode. V.42, MNP, or non-error correction (same as \N3). V.42, MNP, or non-error correction (same as \N3).
RouteFinder MTASR3 User Guide is overridden by any of the following commands: &F, &M, &Q, and \N. +ES = ? shows the only allowed value. Command: &&S Values: Description: Speaker Codec Loopback n/a Provides a loopback from the microphone to the speaker. For testing and debugging only. Command: %T94 Testing External RAM Values: n/a Description: This command is used for testing the external RAM. Enter AT%T94 to determine the status of external RAM.
Appendixes Appendix E - TCP/IP TCP/IP TCP/IP (Transmission Control Protocol/Internet Protocol) is a protocol suite and related applications developed for the U.S. Department of Defense in the 1970s and 1980s specifically to permit different types of computers to communicate and exchange information with one another. TCP/IP is currently mandated as an official U.S. Department of Defense protocol and is also widely used in the UNIX community.
RouteFinder MTASR3 User Guide establishing and terminating virtual circuits, sequencing, flow control, and error correction. Most of the applications in the TCP/IP suite operate over the “reliable” transport service provided by TCP. UDP, described in RFC 768 (ftp://ds.internic.net/rfc/rfc768.txt) provides an end-to-end datagram (connectionless) service.
Appendixes Internet Protocol (IP) IP is the Internet standard protocol that tracks Internetwork node addresses, routes outgoing messages and recognizes incoming messages, allowing a message to cross multiple networks on the way to its final destination. The IPv6 Control Protocol (IPV6CP) is responsible for configuring, enabling, and disabling the IPv6 protocol modules on both ends of the point-to-point link. IPV6CP uses the same packet exchange mechanism as the Link Control Protocol (LCP).
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Glossary of Terms
RouteFinder MTASR3 User Guide A Access: The T1 line element made up of two pairs of wire that the phone company brings to the customer premises. The Access portion ends with a connection at the local telco (LEC or RBOC). Accunet Spectrum of Digital Services (ASDS): The AT&T 56K bps leased (private) line service. Similar to services of MCI and Sprint. ASDS is available in nx56/64K bps, where n=1, 2, 4, 6, 8, 12.
Glossary Basic Rate Interface (BRI): An ISDN access interface type comprised of two B-channels each at 64K bps and one Dchannel at 64K bps (2B+D). Bell Operating Companies (BOC): The family of corporations created during the divestiture of AT&T. BOCs are independent companies which service a specific region of the US. Also called Regional Bell Operating Companies (RBOCs).
RouteFinder MTASR3 User Guide Channel: A data communications path between two computer devices. Can refer to a physical medium (e.g., UTP or coax), or to a specific carrier frequency. Channel Bank: A device that acts as a converter, taking the digital signal from the T1 line into a phone system and converting it to the analog signals used by the phone system. A channel bank acts as a multiplexer, placing many slowspeed voice or data transactions on a single high-speed link.
Glossary inter-LATA basis by AT&T and on an intra-LATA basis by the BOCs. Data Service Unit (DSU): A device that provides a digital data service interface directly to the data terminal equipment. The DSU provides loop equalization, remote and local testing capabilities, and a standard EIA/CCITT interface. Dedicated Line: A communication line that is not switched. The term leased line is more common.
RouteFinder MTASR3 User Guide Ethernet: A 10-megabit baseband local area network that allows multiple stations to access the transmission medium at will without prior coordination, avoids contention by using carrier sense and deference, and resolves contention by using collision detection and transmission. Ethernet uses carrier sense multiple access with collision detection (CSMA/CD).
Glossary developing and deploying frame relay equipment. Frame Relay Implementors Forum: A group of companies supporting a common specification for frame relay connection to link customer premises equipment to telco network equipment. Their specification supports ANSI frame relay specs and defines extensions such as local management.
RouteFinder MTASR3 User Guide and data over a digital communications line. ISDN is a worldwide telecommunications service that uses digital transmission and switching technology to support voice and digital data communications. Frame relay was partially based on ISDN’s data link layer protocol (LAPD). Frame relay can be used to transmit across ISDN services offering circuit-switched connection at 64K bps and higher speeds. Contrast Public Switched Telephone Network (PSTN).
Glossary M Management Information Base (MIB): A database of network management information used by the Common Management Information Protocol (CMIP) and the Simple Network Management Protocol (SNMP). Megacom: An AT&T service with a normal WATS line (typically T1) between the customer premises and the AT&T serving class 4 CO are the customer’s responibility. MegaLink: BellSouth’s leased T1 service. Message: Associated with such terms as packet, frame, and segment. 1.
RouteFinder MTASR3 User Guide Out of Frame (OOF): A T1 alarm condition that is logged on the loss of 2, 3 or 4 of 5 consecutive FT framing bits. P Packet: 1. In data communication, a sequence of binary digits, including data and control signals, that is transmitted and switched as a composite whole. The data, control signals and, possibly, error control information are arranged in a specific format. 2. Synonymous with data frame. 3.
Glossary Q Quantizing: The process of analog-to-digital conversion by assigning a range, from the contiguous analog values, to a discrete number. R Random Access Memory (RAM): A computer’s primary workspace. All data must be stored in RAM (even for a short while), before software can use the processor to manipulate the data. Before a PC can do anything useful it must move programs from disk to RAM. When you turn it off, all information in RAM is lost.
RouteFinder MTASR3 User Guide Simple Network Management Protocol (SNMP): TCP/IP protocol that allows network management. Simultaneous Voice Data (SVD): A technology for letting a user send data via a modem, and use a handset to talk to another user at the same time over the same connection. The alternative, making a second call, can be expensive or even impossible. The uses for SVD are telecommuting, videoconferencing, distant learning, tech support, etc.
Glossary uses an external T1 CSU. Transmission Control Protocol / Internet Program (TCP/IP): A multilayer set of protocols developed by the US Department of Defense to link dissimilar computers across dissimilar and unreliable LANs. Terminal: The screen and keyboard device used in a mainframe environment for interactive data entry. Terminals have no “box”, which is to say they have no file storage or processing capabilities.
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Index Index A Answer command ................................................. 66 ASCII String .......................................................... 22 Asynchronous Communications Mode command . 70 AT commands %B ..................................................................... 71 %C ..................................................................... 71 &&S ................................................................... 72 &B ..................................................................
F Fallback ................................................................. 68 Filtering ................................................................. 44 Flow control ............................................. 69, 70, 71 Frame Types .................................................. 22, 23 EthernetII (Type II) ............................................. 22 LLC (802.2) ........................................................ 22 SNAP .................................................................
Index V.25 ....................................................................... 71 V.32 Auto Retrain command .................................. 69 V.42 eror correction ............................................... 71 V.42bis data compression ..................................... 71 Video ..................................................................... 71 View Current Configuration command ................... 70 View Numbers in Blacklist command .................... 71 W WAN .....................
