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Message forwarding method and message forwarding system, and relay agent device

A technology of message forwarding and agent equipment, which is applied in the field of network communication, can solve the problems of wasting global unicast address or site local address resources, wasting IPv6 address resources, increasing DHCPv6 layer 3 relay agents, etc., so as to save global unicast Address or site-local address resources, reducing workload and improving success rate

Active Publication Date: 2012-10-10
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] In the course of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: no matter configuring a global unicast address or a site-local address for a lower-level device or a layer-3 interface of a DHCPv6 layer-3 relay agent, the The workload of global unicast address or site-local address planning and configuration wastes global unicast address or site-local address resources
Configuring a Layer 3 interface for each user port will increase the number of Layer 3 interfaces on the DHCPv6 Layer 3 relay agent, which will greatly increase the workload of Layer 3 forwarding of the DHCPv6 Layer 3 relay agent and reduce the performance of Layer 3 forwarding. , and will waste IPv6 address resources at the same time

Method used

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  • Message forwarding method and message forwarding system, and relay agent device
  • Message forwarding method and message forwarding system, and relay agent device
  • Message forwarding method and message forwarding system, and relay agent device

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] figure 1 It is a flow chart of the packet forwarding method provided by Embodiment 1 of the present invention. like figure 1 As shown, the method of the present embodiment includes:

[0039] Step 11, receiving the first DHCPv6 message from the DHCPv6 client through a layer-3 interface;

[0040] Step 12, generate a Relay-forward message,...

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Abstract

The present invention provides a message forwarding method and a message forwarding system, and a relay agent device, wherein the forwarding method comprises: receiving a first DHCPv6 message from a DHCPv6 client via a three-layer interface; generating a relay-forward message which encapsulates the first DHCPv6 message, and adding a label of the three-layer interface; and transmitting the relay-forward message to a DHCPv6 server. The technical scheme of the message forwarding method and the message forwarding system, and the relay agent device, can enable the relay agent device to forward a message correctly, save resources of global unicast addresses or site local addresses, and improve three-layer forwarding performance of the relay agent device.

Description

technical field [0001] The embodiments of the present invention relate to network communication technologies, and in particular to a message forwarding method and system and relay agent equipment. Background technique [0002] Internet Protocol Version 6 (Internet Protocol Version 6; referred to as: IPv6) Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol for IPv6; referred to as: DHCPv6) network system is composed of DHCPv6 client, DHCPv6 server and DHCPv6 relay agent, wherein DHCPv6 relay agents can be divided into two categories: DHCPv6 layer-3 relay agents and DHCPv6 layer-2 relay agents. In the network, the DHCPv6 layer-3 relay agent is located between the DHCPv6 client and the DHCPv6 server, and relays and forwards the packets between the DHCPv6 client and the DHCPv6 server. [0003] According to the Request For Comments (referred to as: RFC) 3315, when the DHCPv6 layer-3 relay agent performs layer-3 relay processing on the uplink DHCPv6 message,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/74H04L45/741
CPCH04L29/12226H04L61/2015H04L12/5689H04L61/6059H04L61/5014H04L2101/659H04L67/568H04L67/56H04L45/741H04L45/74H04L47/10H04L2212/00
Inventor 李成刚李宏宇罗勇
Owner HUAWEI TECH CO LTD
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