Date: Sat, 13 Jan 1996 17:09:58 -0800 From: David Muir Sharnoff <muir@idiom.com> To: freebsd-hackers@freebsd.org Subject: Possible source of AppleTalk support if anyone is interested Message-ID: <199601140109.RAA27412@idiom.com>
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Path: idiom.com!news1.best.com!news.texas.net!news.kei.com!news.mathworks.com!uunet!not-for-mail From: rdk@cc.gatech.edu (Bobby Krupczak) Newsgroups: comp.sys.sun.announce Subject: AppleTalk Protocol Source Distribution Date: 12 Jan 1996 20:05:11 -0500 Organization: unknown Lines: 101 Sender: zorch@ftp.UU.NET Approved: zorch@uunet.UU.NET Distribution: world Message-ID: <199601021803.NAA24749@morticia.cc.gatech.edu> NNTP-Posting-Host: ftp.uu.net We are pleased to announce an update to our release of our AppleTalk protocol source code as part of our research in protocols and protocol subsystems. We have coded an AppleTalk implementation in the BSD, Streams and x-Kernel subsystems and then combined protocols from different subsystems using Adapter protocols. We have updated our distributions to include support for AppleTalk's data stream protocol (ADSP) in the Streams subsystem as well as the x-Kernel. Further, Streams in SunOS and Solaris 2.x is now supported. Lastly, we have added two additional adapter protocols for building protocol graphs that span multiple subsystems. The implementations have been tested against native Macs, AppleTalk routers, Newtons, and themselves. Please read the accompanying COPYRIGHT notice (in the source code). Bugs, etc. to rdk@cc.gatech.edu The main homepage for the distributions can be found at: http://www.cc.gatech.edu/computing/Telecomm/playground/MULTI/outline.html >From there you can download the various components, view performance graphs, and access papers. Below is an outline of our work. Bobby Multi-Subsystem Protocol Architectures Bobby Krupczak Mostafa Ammar Ken Calvert College of Computing Georgia Institute of Technology Atlanta, GA 30332-0280 ------------------------------------------------------------------------------- Overview The directory contains references and implementations that are part of our research in Multi-Subsystem Protocol Architectures. In this research, we combine protocols from disparate subsystems into a single protocol graph using Adapter protocols. Adapter protocols provide subsystem translation services and allow the construction of interoperable protocol graphs combining protocols implemented within different subsystems. This approach alleviates the protocol porting problem and permits protocol programmers to "pick and choose" those subsystem features they deem desirable while avoiding those deemed undesirable. ------------------------------------------------------------------------------- Papers * Bobby Krupczak, Mostafa Ammar, Ken Calvert. "Multi-Subsystem Protocol Architectures: Motivation and Experience with an Adapter-Based Approach", Proceedings of the IEEE INFOCOM '96 (to appear) * Bobby Krupczak, Mostafa Ammar, Ken Calvert. "Multi-Subsystem Protocol Architectures: Motivation and Experience with an Adapter-Based Approach",Technical Report GIT-CC-95-08, Georgia Institute of Technology, February, 1995 (Revised July, 1995). * Bobby Krupczak, Mostafa Ammar, Ken Calvert. "Multi-Subsystem Protocol Architectures: Motivation and Experience with an Adapter-Based Approach (Extended Abstract)", to appear in Proceedings of the Third IEEE Workshop on the Architecture and Implementation of High Performance Communications Subsystems (HPCS'95), August 1995. ------------------------------------------------------------------------------- The Distribution An example multi-subsystem protocol architecture using the AppleTalk protocol family and the x-Kernel, BSD, and Streams subsystems is available. Included in this release is an AppleTalk protocol graph for the x-Kernel, BSD, Streams (SunOS and Solaris) and a set of adapter protocols for combining them. Although the adapter protocols are instantiated for the AppleTalk protocols (ATP, ADSP, and DDP specifically) they are general and can apply to any protocols coded within those subsystems. Each distribution has been tested on Sun/Sparcs running SunOS 4.1.X (and Solaris 2.4 for Streams) using the underlying BSD or Streams subsystem native to that version of SunOS. The x-Kernel version used is 3.2. All AppleTalk protocol graphs have been tested against native AppleTalk implementations on Macs and Newtons, routers (Cisco and Gatorbox), against AppleTalk stacks implemented in other subsystems (BSD, x-Kernel, and Streams) and against itself. The distributions support AppleTalk Phase 2 and implement (at least) DDP, ATP, ADSP, AEP, RTMP, NBP, and ZIP (sort of). For more information on AppleTalk please refer to Inside AppleTalk by Sidhu, Andrews, and Oppenheimer. Note, the ADSP implementation does not exist natively in BSD but can be included via subsystem adapation. The x-Kernel version of our multi-subsystem protocol architecture relies on a NIT/Ethernet anchor protocol to gain access to the underlying ethernet device. The Streams version relies on the SunOS NIT device also. The BSD version does not require the NIT device be installed in the kernel. Instructions for installing the source code in Streams and BSD are beyond the scope of this document. The distributions for each subsystem (BSD and Streams) should contain kernel specific files. To install within the x-Kernel, refer to the x-Kernel programmer's manual.
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