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Technology Stocks : The New QLogic (ANCR) -- Ignore unavailable to you. Want to Upgrade?

To: Kelly Igou who wrote (20315)	1/20/1999 4:57:00 PM
From: trendmastr	Respond to of 29386

For all you engineering types out there, I was surfing the web and came across this interesting site tpsite.com for Technologic Partners, which is hosting a conference "Network Outlook - The Infrastructure of the Internet" As part of their agenda they will have a session on: Management Meetings 11:30 am The company presentations will provide an exclusive forum in which 50 CEOs and company founders present their business plans. Technologic Partners editors and research staff hand-picked, exclusively for Network Outlook, the hottest emerging companies involved in these critical industry categories: * Advanced Solutions * Carrier Access * Web-site Tools * Telecom Solutions * Network Management * Network Products * Storage Networks Technologic Partners offers a series of technologic guides including one for storage networks. Included in the storage networks listing are some papers from ANCR: OVERVIEW Channel Networking A good discussion of some of the basic distinctions between channels and networks, and by extension of the benefits of fibre channel. "Networks ... provide a shared service designed to handle unpredictable, bursty traffic. The very nature of this service means that networks are inherently software intensive," a fact that inherently limits bandwidth. Hardware intensive channels, however, "have much lower overhead than networks. Unfortunately, until now it was difficult to cost-effectively provide channel connectivity to many clients. Channels also had a problem handling small-packet bursty traffic." Fibre channel has solved those problems, in part by enabling both packet and circuit switching communications. Usefully: "The Fibre Channel protocol processing and encoding are contained is a single VHSCI (Very-High-Speed-Communications-Interface) ASIC. The VHSCI expedites communication throughput at all Fibre Channel speeds, and works with a range of fiber optic transceivers (IBM, HP, AT&T and Finisar)." From Ancor. HTML format. 17K. Inside Fibre Channel A fine general-purpose discussion of channels, networks, and fabrics, with well chosen analogies (the telephone network) to illuminate the last concept. The document notes the importance of fibre channel's buffer structure: "Fibre Channel is able to combine some of the attributes of a channel with some of those of a network through a simple technique that sidesteps the issue of widely varying channel and network protocols: It provides a means to transfer data between one buffer at the source device (a computer or disk array, for example) and another buffer at the destination device. All channel and network protocols rely on buffers to hold data they send and receive. Fibre Channel doesn't care what the data is or how it is formatted -- commands, packets, frames, etc. It simply takes what is in the sending buffer and transports it to the receiving buffer. What the individual protocols do with the data before or after it's in the buffer is inconsequential." Long and technical. From Ancor. HTML format. 26K. ©1999 Technologic Partners \| 120 Wooster Street € New York, NY 10012 \| e-mail \| 212-343-1900 tm