Sand Castle
Systems, Inc. offers a complete line of
portable AppleTalk ® technology --
protocol stack, router, Apple ® Remote
Access (ARA) server, AppleShare ® file
server, and PostScript ® print server.
The code base was originally developed
by Pacer Software, Inc. and has now
migratred, with the original developers,
to Sand Castle Systems, Inc. Sand
Castle's technology has been licensed to
numerous vendors and has been
successfully ported into many
environments. The source code is written
in ANSI C, is fully modular, and has
been designed for ease-of-porting. The
disparate hardware and operating
environments that have hosted Sand
Castle's portable AppleTalk technology
include CISC, RISC, big-endian,
little-endian, time-shared, real-time,
single-threaded, multi-threaded,
single-processor, and multi-processor.
Promoting
AppleTalk
UNIX system
vendors, router vendors, printer and
print server manufacturers, developers
of specialized network hardware, and
application companies all have a vital
need to incorporate AppleTalk support
into their products. By providing
portable AppleTalk technology, Sand
Castle is offering these vendors easy
entry into the burgeoning AppleTalk
services market.
The
AppleTalk Standard
Sand
Castle's portable AppleTalk stack,
router, and AppleShare file and print
services are implementations of Apple
Computer's AppleTalk Phase 2
communication protocols. Sand Castle's
AppleTalk technology complies with the
AppleTalk protocols as defined by Inside
AppleTalk, Second Edition ©1990 by
Gursharan S. Sidhu, Richard F. Andrews
and Alan B. Oppenheimer. Sand Castle's
AppleShare implementation has been
validated by both Apple's AppleTalk
Validation Suite (AVS) and Low Level
Protocol Tester (LLPT). Sand Castle's
ARA server is a portable implementation
of the AppleTalk Remote Access Protocol
as defined by the Apple Remote Access
Protocol External Reference
Specification document (versions 1.0 and
2.0).
Make vs.
Buy
Sand Castle
can make the "make versus buy" decision
an easy one. We are committed to our
portable AppleTalk products - keeping
them current and supported. Use of Sand
Castle's portable AppleTalk technology
has consistently shortened our
customers' development time. Through
working with Sand Castle, developers and
manufacturers confidently stay current
with evolving protocol specifications.
AppleTalk
for the Rest of Us
Sand Castle
Software specializes in networking
products for the Apple market and enjoys
an excellent industry reputation. We are
the largest supplier of AppleTalk and
AppleTalk services outside of Apple
Computer. In fact, Sand Castle
co-developed Apple's portable STREAMS
version of AppleTalk for UNIX. Sand
Castle has licensed its technology to
many vendors including Apple, Microsoft,
3Com, Webster Computing, Xyplex, Telebit,
Lotus, Locus, Oracle, Motorola, Data
General, Hewlett-Packard, and Digital
Equipment.
Licensing
Sand
Castle's portable stack, router and ARA
server are each available for one-time
source code license fees. Sand Castle's
AppleShare file and print services are
licensed on a royalty basis. Annually
renewable support services are
available, covering both technical
support and software updates.
Product
Specifications
Core
protocols:
EtherTalk
Link Access Protocol (ELAP),
TokenTalk
Link Access Protocol (TLAP),
LocalTalk
Link Access Protocol (LLAP),
FddiTalk
Link Access Protocol (FddiLAP),
HalfPort
Link Access Protocol,
AppleTalk
Address Resolution Protocol (AARP),
Datagram
Delivery Protocol (DDP),
AppleTalk
Echo Protocol (AEP),
Name
Binding Protocol (NBP),
Routing
Table Maintenance Protocol Stub
(RTMPstub),
Zone
Information Protocol Stub (ZIPstub)
Additional
stack protocols:
AppleTalk
Data Stream Protocol (ADSP),
AppleTalk
Transaction Protocol (ATP),
Printer
Access Protocol (PAP),
AppleTalk
Session Protocol (ASP)
Additional
router protocols:
Full
Routing Table Maintenance Protocol
(RTMP),
Full Zone
Information Protocol (ZIP)
Additional
ARA protocols:
Remote
Access Link Access Protocol (SRP),
AppleTalk
Remote Access Protocol version 1.0,
AppleTalk
Remote Access Protocol version 2.0,
SmartBuffering compression,
Optional
Modem Code (V.42/MNP plus compression)
High level
services:
AppleTalk
Filing Protocol version 2.1 (AFP),
PostScript
print services
Please
contact
info@SandCastleSystems.com for
licensing information.
