Method for forwarding information and information forwarding apparatus

Abstract

The invention discloses a method for forwarding information. According to the routing indication information which is carried in the data information to be transmitted and is used for indicating the objective edge network, the boundary routing equipment information of the objective edge network which is corresponding to the routing indication information is obtained, and the data information tor be transmitted is sent to boundary routing equipment of the objective edge network for sending again. The invention also discloses equipment for forwarding information. By adopting the method for forwarding information, when the quantity of internet routing is increased sharply, the cost of the equipment with routing list storage function in the entire network is saved, the speed of routing convergence of the entire network is improved, the working efficiency of the entire system is improved, and the method is simple and practicable.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for forwarding information and an information forwarding device. Background technique [0002] Routing is the act of transmitting information from the source to the destination through the network, and it usually includes two basic actions: determining the best path and data exchange. Metric is the measurement standard used by the routing algorithm to determine the best path to the destination, such as path length. To aid in path selection, routing algorithms initialize and maintain routing tables that contain routing information, which varies depending on the routing algorithm used. The best way to tell the router the destination / next hop address is to send the packet to the router representing the "next hop". When the router receives a packet, it checks its destination address and tries to match this "related. The routing table includes a variety of information, su...

AI Technical Summary

Problems solved by technology

With the widespread deployment of multi-homing networks and traffic engineering, the number of Internet (Internet) routes is increasing rapidly, which brings about the increase in the cost of router equipment due to the need for larger-capacity routing table storage chips on the one hand, and on the other hand. Routing convergence becomes slower, which is not conducive to the rapid response of the system and affects the efficiency of the entire system

[0004] The inventor found in the process of implementing the present invention: because the routing table in the prior art contains the route scheduled to the target subnet, when the number of Internet routes increases rapidly, the forwarding network (Transit Network, TN) and the edge network (Edge Network, The routing equipment in EN) needs to increase the corresponding routing information at the same time, so that the capacity of the routing table increases sharply. Therefore, the cost of the device with routing table storage function increases, and the routing convergence is slower, resulting in low efficiency of the entire system

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