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Linux Journal: ImageStream IS Gateway and Rebel Routers

Aug 05, 2000, 13:35 (0 Talkback[s])
(Other stories by Jon Valesh)

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"Gateway and Rebel Routers from ImageStream Internet Solutions: heavy-hitting performance, lightweight price. Or, if not lightweight, at least inexpensive, compared to their mainstream competition. ImageStream's backbone routers spring from a simple premise: take GNU/Linux, with all of its proven networking abilities, and package it in an industrial-strength wrapper. Simple premise, perhaps, but far from a simple accomplishment. Fortunately, ImageStream has had plenty of practice. Founded in 1993, they have been building Linux-based servers and routers long enough to know what is important."

"Packing support for a wide range of physical interfaces, up to T3 and beyond, and enough expansion room to cram over twenty T1s, multiple Ethernet and a couple of big WAN connections in a fully loaded system, ImageStream has taken their simple premise and made it into a useful reality. Dynamic routing with RIP1, RIP2, OSPF and BGP4, bandwidth management, firewall support and seamless interconnectivity with Cisco and other major name routers make the accomplishment even more impressive. A price point well below Cisco's makes their reality compelling."

"In order to build their routers, ImageStream first created a Linux distribution: one that maximizes network functionality while minimizing hard-disk space requirements so it fits nicely on a solid-state FLASH hard disk, and has easy-to-use administration tools. You don't need to be a Linux guru to set up or maintain the system. Then, they developed and released, under the GNU GPL, an open-source Linux kernel extension called SAND, or Standard Architecture for Network Drivers, which allows binary distribution of WAN hardware and protocol drivers. ... The most significant feature of SAND is its ability to mix and match binary protocol, WAN card and even external CSU/DSU drivers from different manufacturers."

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