
AppleTalk Technology
Portable AppleTalk Technology
AGE Logic, Inc. offers a complete line of portable AppleTalk® technology - protocol stack, router, Apple® Remote Access (ARA) server, AppleShare® file server, and PostScript® print server. Pacer'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 Pacer'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, Pacer is offering these vendors easy entry into the burgeoning AppleTalk services market.
The AppleTalk Standard
Pacer's portable AppleTalk stack, router, and AppleShare file and print services are implementations of Apple Computer's AppleTalk Phase 2 communication protocols. Pacer'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. Pacer's AppleShare implementation has been validated by both Apple's AppleTalk Validation Suite (AVS) and Low Level Protocol Tester (LLPT). Pacer'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
Pacer can make the "make versus buy" decision an easy one. We are committed to our portable AppleTalk products Ð keeping them current and supported. Use of Pacer's portable AppleTalk technology has consistently shortened our customers' development time. Through working with Pacer, developers and manufacturers confidently stay current with evolving protocol specifications.
AppleTalk for the Rest of Us
Pacer 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, Pacer co-developed Apple's portable STREAMS version of AppleTalk for UNIX. Pacer 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
Pacer's portable stack, router and ARA server are each available for one-time source code license fees. Pacer'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.
AppleTalk Protocol Architecture
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 (ARAP 1.0),
- AppleTalk Remote Access Protocol version 2.0 (ARAP 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
Apple, AppleTalk, and AppleShare are registered trademarks of Apple Computer, Inc. PostScript is a registered trademark of Adobe Systems. All other product names are subject to trademark claims by their respective owners. The details contained herein are summary in nature, subject to change and intended for general information only.
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AGE Logic, Inc.