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Routing method, node, packet communication system, program, and recording medium

A technology for grouping information and routing, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as link bandwidth congestion, link layer titles occupying bandwidth, etc.

Inactive Publication Date: 2008-09-10
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the above-mentioned prior art, when multiple identical data are sent to the same node on a certain link, there will be a problem that the link layer title will occupy the bandwidth
In addition, when the packet data is not compressed, it will also cause the congestion of the link bandwidth

Method used

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  • Routing method, node, packet communication system, program, and recording medium
  • Routing method, node, packet communication system, program, and recording medium
  • Routing method, node, packet communication system, program, and recording medium

Examples

Experimental program
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Embodiment Construction

[0129] first form of implementation

[0130] Fig. 1 schematically shows the configuration of a packet communication system according to a first embodiment of the present invention. The node in the first embodiment assembles a plurality of IP packets and encapsulates them using one IP packet to form a compact packet. Here, it is assumed that a routing control protocol such as OSPF (Open Shortest Path First) functions on the network. In FIG. 1, all the routers in the network have a restoration function for restoring a compact packet to the original multiple packets. In FIG. 1 there are routers C, D, G, H, for example. In addition, routers C and H not only have recovery functions. It also has a packet-integrating function that performs IP encapsulation, that is, aggregates multiple packets to form one compact packet. Routers G and D, which only have recovery functions, execute Figure 4 The recovery process shown. In addition, in the routers C and H that have both the rec...

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Abstract

A configuration comprises a destination address extracting / rewriting device 4 for extracting a destination address of a packet; a common-route packet extracting device 8 for extracting two or more packets having a common route at least in part of routes to their respective terminals from a plurality of packets, based on their extracted destination addresses; an aggregate packet creating device 9 for aggregating the plurality of packets having the common route at least in part of the routes to create an aggregate packet including information of each of the packets; a destination address giving device 10 for giving the aggregate packet a destination address so that the destination address of the aggregate packet is an address of an adjacent node on the common route; and an aggregate packet routing device 11 for routing the aggregate packet, based on the destination address.

Description

technical field [0001] The invention relates to a routing selection method, a node and a packet communication system for improving network resource utilization efficiency in a network using packet switching. Background technique [0002] Conventionally, even when a plurality of packets destined to the same node and containing the same data arrive consecutively at the routing node, each packet is handled independently. Specifically, a node performing routing refers to header information of all arriving packets to specify a destination node, and performs routing to each of the destinations. [0003] However, in the above-mentioned prior art, when multiple identical data are sent to the same node on a certain link, there will be a problem that link layer headers occupy bandwidth. In addition, when the data compression of the packet is not performed, it will also cause congestion of the link bandwidth. Contents of the invention [0004] Therefore, an object of the present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L45/74H04L47/41H04L47/43
CPCH04L29/0653H04L49/90H04L69/04H04L29/06H04L29/0604H04L69/22H04L45/00H04L2212/0025H04L2212/00H04L12/28H04L9/40
Inventor 大前浩司池田武弘岡岛一郎梅田成視
Owner NTT DOCOMO INC
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