Development of 10-gigabit ethernet backbone switch

The gigabit Ethernet switch is already being deployed in large numbers in both corporate and public data networks, and has begun to move Ethernet from the region of the local area network out to encompass the metro area network. The main issue for 10-gigabit Ethernet switch development is the need of a new network processor that ern process high-speed packets forwarding on line interface module. In this paper, we compare functionality of the commercial NPUs. And we introduce architecture of the 10-gigabit Ethernet backbone switch supporting L2 and L3 switching functions.