From bloom-picayune.mit.edu!snorkelwacker.mit.edu!usc!elroy.jpl.nasa.gov!news.claremont.edu!ucivax!schmidt Sat Mar 21 08:01:30 EST 1992 Article: 1070 of comp.protocols.misc Xref: bloom-picayune.mit.edu comp.protocols.iso:2550 comp.protocols.misc:1070 Path: bloom-picayune.mit.edu!snorkelwacker.mit.edu!usc!elroy.jpl.nasa.gov!news.claremont.edu!ucivax!schmidt From: schmidt@bastille.ics.uci.edu (Douglas C. Schmidt) Subject: Re: Info on VMTP protocol (4th OSI layer) wanted. Nntp-Posting-Host: bastille.ics.uci.edu Message-ID: <29CA2D35.7649@ics.uci.edu> Newsgroups: comp.protocols.iso,comp.protocols.misc Reply-To: schmidt@ics.uci.edu (Douglas C. Schmidt) Organization: University of California at Irvine: ICS Dept. Lines: 124 Date: 20 Mar 92 18:21:41 GMT References: <20MAR199216193533@vxcrna.cern.ch> In article <20MAR199216193533@vxcrna.cern.ch> kassapidis@vxcrna.cern.ch (Kassapidis Panagiotis, CERN) writes: ++ ++ (This might not be the most appropriate newsgroup to ++ ask question like this, but...) ++ ++ ++ Hello all! ++ ++ We have been assigned the work to make a comparison of various ++ protocols that implement the 3rd and 4th layers of the OSI standard, ++ (Network and Transport respectively). Among the protocols to be ++ compared are TCP/IP, TP4/CLNP, XTP, DELTA-4 and VMTP. ++ Some of them (TCP, TP4), are more or less well known and relevant ++ literature can easily be found. The one I am told we have almost no ++ information about is VMTP. ++ Does any one have any pointers on where more can be found about ++ this VMTP protocol (FTPable files, publications, recommendations)??? ++ I thought, I might among other means to try ask the net-wizdom for ++ help... :-) Hi, I've included several entries from my bibliograph file. The first article you want to read (which has already done most of the work for you ;-)) is: ---------------------------------------- @article{Doeringer:90, AUTHOR = "Willibald A. Doeringer and Doug Dykeman and Matthias Kaiserswerth and Bernd Werner Meister and Harry Rudin and Robin Williamson", TITLE = "{A Survey of Light-Weight Transport Protocols for High-Speed Networks}", JOURNAL = "IEEE Transactions on Communication", YEAR = 1990, VOLUME = 38, NUMBER = 11, MONTH = {November}, PAGES = "2025--2039", ANNOTE = "Read on Dec 9th, 1991", ABSTRACT = "This paper presents a comparative survey of techniques used at the transport layer in eight representative protocols, most of which were design to improve the protocol processing rate. The protocols are the relevant portions of the APPN, Datakit, Delta-t, NETBLT, OSI/TP4, TCP, VMTP, and XTP architectures. The paper motivates the survey by describing how networks offering increasing transmission capacity at decreasing error rates are becoming available base upon progress in fiber-optic and VLSI technologies. New applications would benefit from this bandwidth, but software protocol processing rates have not kept up with available raw transmission speed." } ---------------------------------------- The following are places to look for more details on VMTP, Delta-t, and XTP. Doug ---------------------------------------- @article{Cheriton:89a, AUTHOR="Cheriton, David R. and Williamson, Carey L.", TITLE="{{VMTP} as the Transport Layer for High-Performance Distributed Systems}", JOURNAL=IEEE Communications Magazine, MONTH=jun, YEAR=1989, VOLUME=27, NUMBER=6, PAGES="37--44", ABSTRACT = "Computer communication in the past has focused on efficient streaming data over slow lossy channels, optimizing for remote terminal access and file transfer. However, communication in modern distributed systems is primary of a request-response or transaction-oriented nature and is supported by high-speed, low error rate networks. The wide spread use of remote procedure call (RPC) mechanisms over Ethernet is a familiar example of this direction. The performance and functionality of current standard transport protocols has become a major limitation in the move to higher speed networks and larger scale, more sophisticated distributed systems." } @inproceedings{Watson:89, AUTHOR="Richard W. Watson", TITLE="{The Delta-{\em t} Transport Protocol: Features and Experience}", BOOKTITLE="Proceedings of the 1st International Workshop on High-Speed Networks", MONTH={May}, YEAR=1989, ABSTRACT = "With the advent of new high performance networks and distributed systems there is renewed interest in transport protocol designs that can support both request/response and stream styles of communication. Delta-t is a transport protocol designed to meet such goals. Delta-t's main contribution is in the area of connection management, where it achieves hazard free connection management without explicit packet exchanges. This paper reviews Delta-t's features, connection management more generally, and outlines some implementation lessons useful for high performance networks." } @inproceedings{Chesson:89, AUTHOR="Greg Chesson", TITLE="{XTP/PE Design Considerations}", BOOKTITLE="Proceedings of the 1st International Workshop on High-Speed Networks", MONTH={May}, YEAR=1989, ABSTRACT = "The Xpress Transfer Protocol, XTP, is an approach to protocol design for next generation networks. The Protocol Engine, PE, is a hardware architecture for implementing network protocols and system interfaces using VLSI techniques. The two projects are related: XTP is designed with a PE in mind. This paper presents some of the ideas and goals in XTP." } -- His life was gentle, and the elements so | Douglas C. Schmidt Mixed in him that nature might stand up | schmidt@ics.uci.edu And say to all the world: "This was a man." | ucivax!schmidt -- In loving memory of Terry Williams (1971-1991)| (714) 856-4101