WAN Links  Rules of Thumb  Version 2.0    
October 22, 1992

NetWare WAN Links v2.0: 
 - Is a software package consisting of the wide area links, Link/PPP
   (Point-to-Point Protocol) and Link/X.25.  
 - Replaces separately sold products known as Link/64, Link/T1, and
   Link/X.25. 
 - Is a new product offering in a series of LAN/WAN internetworking        

   software products offered by Novell's Internetworking Products Division.

 - Is designed specifically to provide transparent and reliable WAN
   connectivity in multiprotocol networks.
 - Operates over a variety of transmission media, including X.25 and
   synchronous point-to-point communication lines.  
 - Supports IPX, IP, Appletalk, and OSI protocols over X.25 and PPP. 
   Link/X25 provides transport for QLLC, Message Handling Service, and     

   FTAM.  Clock rates range from 1200bps to 64Kbps for Link/X.25, and      

   1200bps to 2.048Mbps for Link/PPP.  
 - Takes advantage of the reliability, security, performance, and routing
   features of the NetWare Operating System v3.11.

This document is designed to assist you in configuring WAN Links for
optimal performance, reliability, and ease of use, included are recommended
components and methods for installation and helpful general information
regarding LAN/WAN interconnectivity in a Wide Area Networking environment.

README.20 File
Please read the README.20 file located on the "WAN Links Disk 1" for the
latest changes.  The information in the README file is designed to assist
you in configuring and troubleshooting WAN Links.

* New Features of WAN Links *
* Multiple Protocol Support *
NetWare WAN Links v2.0 supports multiple protocols over X.25 and PPP. 
Routed and Routing Protocols are:
Routed Protocols               Routing Protocols
----------------               ----------------
IPX                            RIP
IP                             RIP
AppleTalk (Phase 1 and 2)      RTMP
OSI                            IS-IS (Level 1)

* Menu Installation and Configuration *
Novell has created a new utility to assist the network administrator with
installation and configuration of both LAN and WAN interface boards.  The
Inter Network Configuration (INETCFG) NLM is a utility that runs on the
router or file server and provides a menu driven configuration interface
with several layers of context-sensitive help.  It is used to configure:
   - LAN and WAN boards
   - the protocols
   - the attachment of protocols to the specific board(s)
   - all call destinations for remote X.25 and PPP networks

* SAP Filtering NLM *
WAN Links also includes the SAPCFG Filter driver.  The SAPCFG filter is
installed on your router or file server and allows you to cut down on SAP
traffic locally and across WAN connections.  SAPCFG is menu driven and
allows you to select which SAP service you do or do not want to allow
through the router.  See the MultiProtocol Router Supervisor's Guide for
more information on this NLM.

* NetWare WAN Links Requirements *
A number of separate components are needed to establish and operate the WAN
link:  
   - WAN Links software (Link/X.25 and Link/PPP NLMs)
   - router software (NetWare MultiProtocol Router v2.0 or NetWare v3.11)  
   - communication boards (LAN and Novell Synchronous/+ Adapter)
   - customer premise equipment (such as modems, DSU/CSUs, multiplexers, or
     data switches)
   - telecommunications service (such as, X.25 ports or leased lines)

A careful evaluation of needs and selection of components ensures cost
effective and efficient transmission of data communications.

Many organizations provide telecommunication services to transfer LAN-to-
LAN data, and many companies provide the appropriate modems or other
customer premise equipment.  Before attempting to implement wide area
communications, users should work closely with the telecommunications
service providers and/or MIS personnel.

Note: Refer to the Interconnectivity Planning Checklist at the end of this 
Rules of Thumb.

NetWare WAN Links can operate with these systems:
   - NetWare v3.11 (file server based routing)
   - NetWare MultiProtocol Router v2.0 (dedicated router over NetWare
   Runtime v3.11)

Caution: NetWare WAN Links does not operate within a NetWare v2.x server,
or with BRGEN or ROUTEGEN.

* File Server based or Dedicated Router *
There are pros and cons for combining WAN routing with the LAN file server
(file server based router) and for establishing it as a separate router PC
(dedicated router).

Combining WAN Links with the v3.11 file server can eliminate the cost of
extra hardware.  However, demands for file server services may cause
performance degradation.  In such instances, the WAN might perform slower
than expected for network services.  In a server based, moderately loaded
configuration, users can expect aggregate WAN throughput performance for
all four ports of up to 3 Mbps when using one WAN Synchronous/+ Adapter. 
For more than one high-speed WAN or multiple LAN connections, Novell
recommends configuring the WAN Links in a dedicated router.  
NOTE: For WAN LINKS performance benchmark information call 800-NETWARE and
ask for the Product Information group.

The best performance at supported data rates, including T1/E1, is achieved
when configuring the system as a dedicated router.  Among the advantages of
using a dedicated PC for router functions are:
   - It provides a backup unit if the file server goes offline.
   - A file server can be down for periodic maintenance and users still can
   route across the WAN for network services.
   - A dedicated router can also be down for periodic maintenance and users
   still can attach to the local file server for network services.

For more information on file server based versus dedicated router, refer to
the MultiProtocol Router Rules of Thumb (MPRRUL.TXT).
* Computers/Memory *
A dedicated or file server based WAN Links Router requires a minimum of a
80386 or 80486 based PC with at least 8 MB of RAM, 40 MB of hard disk
space, and one high density floppy disk drive.  An EISA (Extended Industry
Standard Architecture) or MCA (Micro Channel Architecture) bus system is
recommended for high performance applications.  A keyboard and monitor are
required for initial installation, but are not for maintenance and
management.

* LAN Cards *
An ODI compatible Network Interface Card is required, such as one of the
following Novell cards or one of the cards listed in Table X.
   - NE2000 (ISA)
   - NE3200 (EISA)
   - NE/2 (MCA)
   - NE/2 32 (32 bit MCA)

* WAN Boards *
A Novell Synchronous/V.35+, Synchronous/RS422+ (including X.21), or
Synchronous/ RS232C+ Adapter provides the connection to the communications
device.  The Synchronous/+ Adapter serial port(s) attach to either a
DSU/CSU, X.25 switch, synchronous modem, or multiplexer, which in turn
connects to the telecommunications line.

WAN Links v2.0 supports the use of all four ports of the Synchronous/+
Adapter for routing.  Novell recommends the V.35 or RS422 interface for
data rates from 9.6Kbps to 2Mbps, and the RS232 interface for data rates of
1200bps to 19.2Kbps.  The four ports can be all the same speed or a mixture
as the Table below shows).  A combination configuration could be used to
support a dial-up line as a backup solution or additional low speed
routing.

Caution: One Novell Synchronous/+ Adapter will not support both Link/PPP
and  Link/X.25; you need a separate board for each.

Port Configuration Table
                   V.35 port    RS422 port         RS232C port
                                (including X.21)
---------------------------------------------------------------
Supported       | 1200 bps - | 1200 bps         | 1200 bps 
Line Speed      | 2.048 Mbps | 2.048 Mbps       | 19.2 Kbps
                |            |                  |
Configuration 1 | 4 ports    |                  | 
                |            |                  |
Configuration 2 |            | 4 ports          | 
                |            |                  |
Configuration 3 |            |                  | 4 ports
                |            |                  |
Configuration 4 | 2 ports    | 2 ports          | 
                |            |                  |
Configuration 5 | 2 ports    |                  | 2 ports
                |            |                  |
Configuration 6 |            | 2 ports          | 2 ports


* WAN Configurations *
The optimal configuration for LAN/WAN connections is a blend of products
that best serves the economics and performance requirements of the
organization.  Choose the appropriate WAN Link product (Link/PPP or
Link/X.25) that will meet the needs of the user community and the type of
data that will transfer across the router.
Users typically need to perform a number of activities over the
internetwork including:
   - Remote Office Communications, (File transfer)
   - uploading and downloading files between branch offices
   - Electronic mail
   - Host access organizations, that need to provide users with access to
   key applications located in a host minicomputer or mainframe system. 
   With a NetWare SAA Comm Server installed at your central LAN, NetWare
   users can run 3270 LAN Workstation software on remote LANs to access the
   SNA host across the T1 or CEPT links.
   - Direct file access, real time manipulation of data on a remote
   workstation, file server or mainframe; for example, accessing a
   centrally maintained database.
   - Network management, the ability to monitor the activity of separate
   local area networks and distribute software and other LAN utilities from
   a centralized location.

* WAN Environments *
WAN Links accommodates applications with bandwidths from 1200bps up to
2.048Mbps.  When using speeds above 1Mbs, users may not realize their
work is being routed over a wide area network.  Because of its
capabilities, WAN Links provides unprecedented flexibility in constructing
a wide range of internetworking solutions.

Headquarters Office
The headquarters site is the central site for business operations and 
communications.  The headquarters router generally has a high concentration
of wide area links and is at the hub connecting to the branch offices at
the ends of the spokes.  Wide area connectivity is generally architected
as a hub and spoke where the WAN Links router software will support a
combination of up to 16 physical ports (4 Synch/+ Adapters) for point-to-
point leased lines or X.25 links necessary for the headquarter's router. 
The Headquarters router should be dedicated to ensure that operations are
not interrupted if a server is brought down.

Branch Office
Other corporate sites, besides headquarters, may include regional and
branch offices located worldwide.  Regional offices will probably require
a dedicated router while the need will be less in a remote branch office,
so that the WAN Links software can be put on the server.  The branch office
server, with 2 to 15 PCs, can incorporate both the wide area network link
and the managed hub card.  Wide area network connectivity can use various
speed leased lines or X.25 packet switched networks.

Leased lines are appropriate when guaranteed bandwidth, low latency, and
fixed cost are important.  X.25 is preferred when data traffic is
intermittent or bursty and would waste expensive fixed leased line
bandwidth.  Leased lines are used more for domestic applications, whereas
X.25 is used more for international interconnectivity.  X.25 can be more
economical than leased line solutions because it combines the traffic from
many locations into a single connection point.

** Network Management **
* SNMP Support *
SNMP provides network monitoring and management of protocols and devices
having SNMP capabilities.  You can enter the addresses of SNMP management
stations that will receive any SNMP traps from the router.  SNMP MIBs are
supported for the following protocols:
   - IP
   - AppleTalk
   - OSI
* Protocol Utilities *
   - INETCFG and Novell Profiles (for Link/X.25 PDN configurations)
   - Expanded MONITOR utility for IPX/SPX (provides additional statistical 
     information for both Link/X.25 and Link/PPP interfaces)
   - TCPCON for TCP/IP
   - Enhanced ATCON for AppleTalk
   - New ISOCON for OSI
   - CONLOG (NetWare console logging utility)

* X.25 Trace Utility *
The X.25 Trace utility is an NLM utility that can be run on the router or
file server, providing a Data Link and Frame layer output of X.25 traffic. 
The utility aids in troubleshooting problems related to X.25 connections,
line congestion, or general configuration issues.  For example, a trace can
be logged to disk for later printout.  This printout can then be sent to
your PDN or Novell Technical Support for problem resolution, or reviewed by
internal telecom staff trained in troubleshooting X.25.

Following is an example of a trace output (not a complete listing).
 07/13/92 10:27:54 X25-CONNECTION FC 0 PH_ACTIV
 07/13/92 10:27:54 X25-CONNECTION FC 0 DL_CONN
 07/13/92 10:27:54 X25-CONNECTION FS 0 SABM 1 1
 07/13/92 10:27:54 X25-CONNECTION FR 0 SABM 3 1
 07/13/92 10:27:54 X25-CONNECTION FS 0 UA 3 1
 07/13/92 10:27:54 X25-CONNECTION FR 0 INFO 3 0 0 0 1000FB0700
 07/13/92 10:27:54 X25-CONNECTION FS 0 SABM 1 1
 07/13/92 10:27:54 X25-CONNECTION FR 0 UA 1 1
 07/13/92 10:27:54 X25-CONNECTION FC 0 DL_CONN
 07/13/92 10:27:54 X25-CONNECTION PC 0 FFF DL_CONN
 07/13/92 10:27:54 X25-CONNECTION PS 0 000 RESTART c=00 d=00
 07/13/92 10:27:54 X25-CONNECTION FS 0 INFO 1 0 0 0 1000FB0000
 07/13/92 10:27:54 X25-CONNECTION FR 0 INFO 3 0 0 0 1000FB0700
 07/13/92 10:27:54 X25-CONNECTION FS 0 RR 3 0 1
 07/13/92 10:27:54 X25-CONNECTION FR 0 RR 1 0 1
 07/13/92 10:27:54 X25-CONNECTION PR 0 000 RESTART c=07 d=00
 07/13/92 10:27:54 X25-CONNECTION FR 0 RR 3 1 1

* X.25 Cause Code Messages *
The following tables help identify the hex codes that may originate within
an X.25 trace listing.  Note that the text message itself is displayed on
screen during a normal error condition.

Clearing Cause Table
--------------------
Hex Value     Message
=========     =======
00            DTE Originated
01            Number Busy
03            Invalid Facility Request
05            Network Congestion
09            Out of Order
0B            Access Barred
0D            Not Obtainable
11            Remote Procedure Error
13            Local Procedure Error
15            RPOA Out of Order
19            Collect Call Refused
21            Incompatible Destination
29            Fast Select Not Subscribed
41            Buffer Overflow

Restart Cause Table
Hex Value     Reason
=========     ======
00            DTE Originated
01            Local Procedure Error
03            Network Congestion
07            Network Up

Reset Cause Messages Table
--------------------------
Hex Value     Reason
=========     ==============
00            DTE Originated
01            Out of Order (PVC)
03            Remote Procedure Error
05            Local Procedure Error
07            Network Congestion
09            Remote DTE Operational (PVC)
0F            Network Operational (PVC)
11            Incompatible Destination

Diagnostic Code Messages Table
------------------------------
Hex Value     Message
=========     =======
00            No Specific Code
0X            Invalid P(S) or P(R)
1X            Invalid Packet Types
2X            Packet Not Allowed
3X            Timer Expired
4X            Call Setup Problem
5O - 7F       Not Assigned
8O - FF       Network Specified

* Remote Management of Communication Devices *
CPECOMM (Customer Premises Equipment Communication), a NLM utility
installed on your router or server, provides expanded control of your data
communications equipment.  You can now control customer premise equipment
(if there is a supervisor port on the communication equipment) from any
workstation on your internetwork through any communication package that
supports NASI (NetWare Asynchronous Service Interface).  This feature
allows you to remotely configure, control, and troubleshoot data
communications equipment from any workstation on the internetwork.  A
standard modem cable is used from the router's serial port to the
supervisory port or terminal on the data communication equipment.  Refer to
the data communications manual for more information.

* Synchronous/+ Adapter diagnostics *
The utility SD.EXE (run from DOS) is included with the hardware for board
diagnostics.  This utility can be used by the administrator in the event of
board problems.  For more information on SD, refer to the Synchronous/+
Adapter Installation Guide.

** WAN Connections **
* Physical Connection *
A DSU/CSU, full duplex synchronous modem, or other data communications
equipment, such as a multiplexer or X.25 switch, is required at each router
location.  

The Link products are designed to run at any data rate within their
respective ranges 
   - 1200bps to 64Kbps for Link/X.25 
   - 1200bps to 2.048Mbps for Link/PPP)
For example, Link/PPP can operate at 64Kbps.  It can also use the
Megastream service (CEPT 2.048Mbps) available in parts of Europe.  It is
not limited to the T1 service provided in North America.  
Link/X.25 is often installed to operate at 9600bps over voice grade lines,
but can also support speeds up to 64Kbps.

WAN Links is designed to adapt dynamically to speed changes on the link
(for example, T1 multiplexers with dynamic bandwidth allocation).  In
addition to these telecommunication services, WAN Links works with private
transmission facilities such as satellite, microwave, and optical fiber,
with the requisite DSU/CSU equipment.

* X.25 Profiles *
WAN Links provides a set of standard X.25 profiles for the major public
packet-switched networks worldwide.  The user can use these profiles,
modify them, or create their own customized profiles for any public or
private data network.

** Upgrading from Link/64, Link/T1, or Link/X.25 **
* Link/64 or Link/T1 Upgrade *
Upgrading from Link/64 or Link/T1 to NetWare WAN Links is easy.  Just
install the software on file server or dedicated router.  If you were
using BRGEN or ROUTEGEN, you have to install the MultiProtocol Router v2.0,
or install WAN Links on a v3.11 file server.  Once the software is
installed, you configure the software using the INETCFG utility.  You need
to remove or comment out the LOAD and BIND commands in the AUTOEXEC.NCF
file.  All the LOAD, BIND, PROTOCOLs, and NETWORK ADDRESSes for all your
LAN and WAN boards are configured by INETCFG.  When you plan the upgrade,
you need to upgrade both connecting points on the link at the same time.

WAN Links will not interoperate with the previous Link releases (Link/T1,
Link/64, Link/X.25) or with NetWare v2.x servers.  By using WAN Links, you
preserve your synchronous hardware because it will use the same hardware as
Link/64 and Link/T1 (except for Link/X.25).

* Link/X.25 Upgrade *
Upgrading from Link/X.25, you will need to purchase a new Synchronous/+
Adapter board and install WAN Links on a MultiProtocol Router v2.0 or a
v3.x server.  The previous Link/X.25 software was designed to operate with
the Novell X.25 Adapter; the WAN Links software is designed to operate with
the Novell Synchronous/+ Adapters.  The Link/X.25 software operated with
ROUTEGEN, which is an external router program that can function on an 8-bit
PC.  WAN Links operates on a 386/ 486, 32 bit PC using NetWare v3.x,
NetWare MultiProtocol Router v2.0, or NetWare for SAA.  The previous
hardware is an older generation 8 bit board, while the Novell Synchronous/+
Adapter is a 16 bit ISA board (full size slot) with an onboard processor
(NEC V50) with 512K memory.

Once the new board is installed, you can install NetWare WAN Links and
configure the software using INETCFG.  You need to remove all the LOAD and
BIND commands in the AUTOEXEC.NCF file.  INETCFG, based on your
configuration inputs, configures all the LOAD, BIND, PROTOCOLs, and NETWORK
ADDRESSes for you automatically.  When you plan the upgrade, you need to
upgrade all the connecting points to which you were connecting.  WAN Links
will not interoperate with the previous Link/X.25 software.

* LOAD and BIND Upgrade *
All LOAD commands of LAN and/or WAN drivers and all BIND commands must be
commented out within (or removed from) the AUTOEXEC.NCF file.  The
following table shows the protocol LOAD and BIND commands that need to be
commented out of the file.

LOAD/BIND Command Removal Table
-------------------------------
 Protocol      LOAD/BIND Commands
 ========      ==================
 AppleTalk     APPLETLK
 ATCFG         ATLKSNMP
 TCP/IP        TCPIP
 TCONFIG       IPCONFIG

However, do not remove other services from the AUTOEXEC.NCF if they are 
present; for example:
   - AFP
   - ATPS

* Technical Notes *
1.INETCFG 
INETCFG.NLM is supplied with the NetWare MultiProtocol Router and provides
a series of easy to use menus for router configuration.  This utility
automates the LOAD and BIND commands used with NetWare v3.11 and earlier
servers.  INETCFG also allows you to view (for troubleshooting purposes,
etc.) the configuration information file, the AUTOEXEC.NCF file, and the
messages generated during a system reboot.  Finally, INETCFG provides
several layers of contact sensitive help, making the configuration process
easy and quick.

2. Before you access a remote file server across a WAN link, copy the
following files to each workstation that will be communicating over the
WAN:   
   - LOGIN.EXE
   - MAP.EXE
   - ATTACH.EXE
   - SLIST.EXE

If you try to log into a remote server without these files, it may take as 
long as 20 minutes, based on the line speed.  This is because of the
executables loading across the WAN links, along with all negotiations,
acknowledgments, and login scripts

Instead, use the ATTACH command; this will leave your local NetWare drive  
mapping to its local public directory for NetWare commands.  You can  
optionally edit your PC AUTOEXEC.BAT file to change your drive mappings
once you are attached.

3. If you plan to use NetWare for MAC or NFS with WAN Links, you must first
install NetWare for MAC or NFS before WAN Links.  WAN Links has updated NLM
files that are also included with NetWare for MAC or NFS.  When NetWare WAN
Links is installed, it will overwrite the common NLM files.

If you already have WAN Links installed on an existing server, or on a  
MultiProtocol Router, and want to install NetWare for Mac and maintain the 

Apple File/Print services with the AppleTalk routing capabilities offered,
do the following:
   - Install NetWare for Mac through PINSTALL as instructed in the NetWare
   AppleTalk manual, but ignore the configuration procedures, like the LOAD
   and BIND commands.
   - Manually copy the following files into the SYS:SYSTEM directory,
   flagging the files to be copied with:
   FLAG filename -rw.
       APPLETLK.NLM        WAN-2 disk, AT directory
       ATCON.NLM           WAN-2 disk, AT directory
       ATCFG.NLM           WAN-3 disk, NM directory
   - Use the INETCFG utility to reconfigure AppleTalk.

4. Before you install a network or Synchronous/+ board in the computer,
make sure that you check all the available interrupts, I/O base, and memory
for all boards.  This will eliminate any conflicts with other devices
installed in the computer. 
For example:
  - COM1 will use IRQ-4, port=3F8-3FF
  - COM2 will use IRQ-3, port=2F8-2FF
  - LPT1 will use IRQ-7  port=378-37F
  - LPT2 will use IRQ-5, port=278-27F

For memory or any conflicts, refer to the hardware manual for each device
for IRQ, I/O base, and memory locations to ensure there are no conflicts. 
As you configure the router and WAN links, record this information on a
worksheet so that any conflicts can be easily seen and avoided.  Such a
worksheet is provided in the NetWare Router Supervisor's Notebook.

5. The Novell Synchronous/+ Adapter only has one switch for changing the
I/O base address.  The interrupt and memory are all software driven.  When
you use INETCFG to configure the Link/X.25 or Link/PPP products of the WAN
Links package, it will allow you to select a I/O base, interrupt, and
memory.

There are three memory options available: A0000, C0000, or D0000.  They
each use a 64K range.  Note that A0000 is only available on ISA/EISA
systems, while C0000 is only available on Micro Channel (MCA) systems.  All
Synchronous/+  Adapters used to support Link/X.25 and Link/PPP can be
configured to share a single memory range.  However, memory ranges cannot
be shared with other boards.  Make sure that there is no conflict with
another device installed in the computer for memory.

** Tested Hardware Environments **
* Hardware Configuration *
The router PC hardware can be selected from one of the tested machines
listed in this document or other systems known to support NetWare v3.11. 
Since the router's CPU must process each data packet, a fast processor is
needed for optimal performance.  The minimum requirements for a router
requires the use of at least a 16MHz 386SX based PC system.  For more
information on routers, refer to the NetWare MultiProtocol Router Rules of
Thumb (MPRRUL.TXT).
If WAN Links is installed in a file server, a minimum of a 25MHz 386 based
computer is recommended for aggregate data rates above 128Kbps:

* Personal Computers Tested *
Hardware Configuration Table
----------------------------
 AST Premium II 386SX20 (ISA)
 AST Power Premium 4/33 (EISA)
 Compaq DESKPRO 486/33m (EISA)
 Compaq SYSTEMPRO 486/33 (EISA)
 Gateway 2000 486/33 (EISA)
 IBM PS/2 Model 57SX (386, 16-bit only, MCA)
 IBM PS/2 Model 80 (8580-A16, 386, MCA)
 Industrial Computer Source 386/33 (ISA)
 Industrial Computer Source 486/33 (ISA)

Tested LAN Cards, Table X
-------------------------
Ethernet                              Token Ring
========                              ==========
NE2000                                IBM Token Ring Network 16/4 Adapter  

 (16-bit,ISA,I/O)                      (8 bit,ISA, Memory Mapped)

NE3200                                Chipcom 16/4 Token Ring Microlan     

 (32-bit,EISA,DMA)                     (16 bit,ISA,DMA) model 4208ML-IN 

SMC 3032TP/EISA                       Madge Smart 16/4 AT Ringnode
  (32-bit,EISA,DMA)                     (8 or 16 bit,ISA,DMA)

Intel LANcard/Hub                     Madge Smart 16/4 EISA Ringnode  
 (16 bit,ISA,I/O or 32 bit,EISA,DMA)   (32 bit,EISA,DMA, 32 bit data trans)

NE/2                                  Olicom
 (16 bit, MCA,I/O)                     (32bit, EISA, DMA, 16bit data tran)

ARCnet                                FDDI
======                                ====
SMC PC130                             Codenol Class A
 (8bit,ISA,DMA,Memory Mapped )         (16bit, ISA, DMA)

Thomas Conrad Model TC6245            Network Peripheral Interface
 (16bit, ISA, DMA, Memory Mapped)      (32bit, EISA, DMA)
                                      
Network Peripheral Interface
 (32bit, MCA, DMA)

Note: 16 and 32 bit boards are recommended for optimal performance.  The   
data transfer method of the card is indicated as I/O port (I/O), Memory
Mapped, or DMA Bus Master (DMA).

* PDNs and Carrier Directory *
See PROVID.TXT for a list to help select a PDN or carrier service.  

* DSU/CSU and Modem Vendors *
See VENDOR.TXT for a list modem suppliers.  

** NASI Applications **
See NACCOM.TXT for a list of NASI3.EXE compatible applications to use with
NACS and the CPECOMM utility of WAN Links v.2.0:

If you are considering installing or purchasing an application that is not
listed, please contact the manufacture to make sure that NASI is supported.

** Performance Analyses **
The following tables show maximum theoretical throughput and transfer times
over WAN Links media.  Your results may vary according to network use, line
quality, and utilization.

Maximum Theoretical Throughput Table
------------------------------------
 Media               Data KBytes/sec            Packets/sec
 56K                 7                          109
 64K                 8                          125
 128K                16                         250
 512K                64                         1,000
 T1                  193                        3,000
 E1                  256                        4,000

Note: The "Packets/sec column was calculated using 64 byte packets.

Table: Approximate Time to Transfer a 1 Megabyte File
------------------------------------------------------
 Media        Time
 9.6          14 min
 19.2         7 min
 56K          2.4 min
 64K          2.1 min
 128K         1 min
 512K         16 sec
 T1           6 sec
 E1           4 sec

Assuming packet burst or equivalent efficiency with disk access time
minimal.  For additional performance information call 800-NETWARE and ask
for the Product Information group.

** Interconnectivity Planning Checklist **
This list is provided to aid in designing a WAN.  If in doubt, hire a
qualified WAN consultant to implement your proposed solution.

DISCOVERY STAGE 
- Conduct user survey
- Conduct a Needs Assessment Study
- Define applications requirements
- Contact international system design consultants
- Determine site locations
- Determine site modifications
- Develop timeline for project
- Finalize system design
- Propose solution to management
- Budgetary approval
- Assemble project team

IMPLEMENTATION PLANNING STAGE
- Develop requirements for equipment / services bids.
- Obtain government regulation guidelines for each country including PTT's
  and Customs.
- Investigate customs, and holiday schedule for each country, incorporate
  into schedule.
- If possible, contract with local in-country integrators to assist in the
  final implementation phase.
- Assign corporate in-country contact for project tracking responsibility
  at that location.

EQUIPMENT PLANNING STAGE 
- Evaluate necessary hardware
- Determine potential vendors both local and international
- Obtain required PTT certification documents for equipment from Vendors  
- Obtain VERIFICATION documents from the PTT on same equipment
- Determine which communications gear may be purchased or brought in from
  outside the country in question
- Acquire permits, government approvals, and network addresses
- Send out bid requests to all vendors and service providers
- Select bids and award contracts
- Mock up network in house for applications testing (important step)
- Document network and publish
- Develop cut over schedule and publish
- Purchase or lease test gear for circuit and network troubleshooting.  

Implementation Stage
- Coordinate Equipment delivery dates with all vendors
- Coordinate Service Installation dates with all PTT's and Carriers
- Run loop back tests with all telecom personnel, end-point to end-point,  
  to ensure proper circuit operation at each location
- Install pilot location end-to-end and test applications for one week
  minimum to locate and repair problems and establish performance benchmark
- Complete installation of remaining sites on a scheduled basis, test each
  one, and allow for fine tuning of network parameters
- Select a team member to act as central contact for all internetworking
  issues  
- Follow up with all vendors to ensure no loose ends remain
- Complete and publish network user documentation
- User training
- Complete and sign off project documentation

* Ordering Information *
Product                                                 Part Number
NetWare MultiProtocol Router v2.0 (3.5")                883-002131-002
NetWare MultiProtocol Router v2.0 (5.25")               883-002132-002
NetWare WAN Links v2.0 (3.5")                           883-002427-001
NetWare WAN Links v2.0 (5.25")                          883-002428-001
Novell Synchronous/V.35+ adapter                        883-000840-001
Novell Synchronous/RS-422+ adapter                      883-000890-001
Novell Synchronous/RS-232+ adapter                      883-000891-001

WAN Links requires one or more Synchronous/+ Adapters, which must be
ordered separately from the above list.