Avici Systems announced Monday that is has extended its contract with AT&T, which has been using Avici's high-end Internet Protocol routers to build its IP andnetwork since 2000.
Avici, which was and went, has struggled to win new customers over the past couple of years. In January, the company announced a . Cisco Systems and Juniper Networks, which together make up more than 90 percent of the , are two of Avici's biggest competitors. Earlier this year, Cisco announced its next-generation core router, the .