Patent ID: 7869441
Filing Date: 2011-01-11
Classification: H04L

Abstract:
1. A router for switching a variable length packet, comprising: a plurality of input interfaces, a plurality of output interfaces, and a switch, wherein the variable length packet comprises header information including information corresponding to a destination output interface that is one of the output interfaces, each of the plurality of input interfaces divides the variable length packet into a plurality of fixed length cells, generates an internal switching information based on a header information, transmits the internal switching information to the switch separately to a transmission of the cells, and after said transmitting, transmits the cells to the switch without providing any destination information, wherein the internal switching information includes a packet length of cells in which the packet is segmented, and the switch transmits the cells to one of the output interfaces to which said internal switching information is transmitted, and holds cells transferred from another input interface to another destination output interface until completing the transmission of said cells to the destination output interface, and wherein the switch completes the transmission of said cells to the destination output interface based on the packet length of cells in which the packet is segmented which is included in the internal switching information.