Our conclusion is that ATM is not a proper technology for Internet backbones. The only reason ATM is considered at all is because the present generation of native IP routers is unable to keep up with the growth of Internet traffic. When multi-gigabit native IP routers become available there will be no technical or economical reason for ATM-based backbone networks to exist. Native IP routing is clearly superior to ATM in many aspects, and does not have the fundamental scaling problems inherent in ATM-based networks.
Ironically, the perceived weakness of IP, the independent routing of packets, can be turned into its major strength. Pluris Inc's patent-pending technology allows the building of terabit per second native IP routers from off-the-shelf components available today. We expect that our technology will make ATM, tag switching, and other hybrid techniques obsolete even before they are deployed in the Internet backbones.