Patent ID: 7916734
Filing Date: 2011-03-29
Classification: H04L

Abstract:
1. A method for determining an Internet packet transmission path of a router system, comprising: retrieving an address corresponding to a destination address with reference to a forwarding table of a router; if the address corresponding to the destination address exists in the forwarding table, determining whether the address in the forwarding table is an absolute address or a relative address, wherein the absolute address corresponds to a physical port and the relative address corresponds to a location of the absolute address; and if the address corresponding to the destination address is an absolute address, determining a transmission path based on the absolute address in the forwarding table, if the address corresponding to the destination address is a relative address, retrieving from a relative forwarding table an address corresponding to a relative address in the forwarding table, wherein the forwarding table comprises: an internet protocol (IP) address field and a media access control (MAC) address field of session participants; an address parity bit field for identifying an absolute address or a relative address; and a reference address field where the absolute address or the relative address is recorded according to the address parity bit.