Len Bosack, a co-founder of Cisco Systems and cur-rent founder and chief executive of emerging optical equipment company XKL LLC, has a clear picture of his intended customers, mostly network managers at enterprises and ISPs. "The problem for a lot of enterprise customers is these guys are perfectly good at running their corporate campus networks and their corporate WAN, but they're terrified of anything optical," he says. "And heaven forefend that they should have to manage something that uses TL1—that's not something that they regard as a positive development."
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