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Method for realizing backup and load shared equally based on proxy of address resolution protocol

An address resolution protocol and protocol technology, applied in the field of using ARP Proxy and VRRP at the same time, can solve the problems of backup router forwarding capability and network bandwidth waste, and system resources are not fully utilized, so as to avoid the waste of forwarding capability and bandwidth, avoid The effect of long-term packet loss and improved reliability

Inactive Publication Date: 2008-01-02
苏师大半导体材料与设备研究院(邳州)有限公司
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Problems solved by technology

[0016] In practical application, the above scheme has the following problems: firstly, the system resources of the existing technical scheme are not fully utilized, and the forwarding capability and network bandwidth of the backup router are wasted
[0022] Case 3. When a router in the backup group (assuming that the router is router A) sends an ARP request to the destination host, since the ARP request is a broadcast message, other routers in the backup group that have started ARP Proxy will also respond to the ARP request. The request responds, which may cause the destination host IP to correspond to the MAC address of other routers in the backup group (assuming that the router is router B) in the ARP cache table of router A

Method used

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  • Method for realizing backup and load shared equally based on proxy of address resolution protocol
  • Method for realizing backup and load shared equally based on proxy of address resolution protocol
  • Method for realizing backup and load shared equally based on proxy of address resolution protocol

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0047] First, explain the basic principle of the present invention.

[0048] In order to solve the problem that the forwarding capability and network bandwidth of backup routers are wasted in the prior art, the scheme of the present invention increases some functions of routers, so that routers in a VRRP backup group can respond to ARP requests according to their forwarding capabilities and network bandwidth, and can respond to ARP requests based on Its forwarding capability and network bandwidth are forwarded, so that it can make full use of the equipment and bandwidth in the network, and realize load balancing on the ARP Proxy.

[0049] In order to solve the problem that the message may be lost for a long time in the prior art, the scheme of the present inventio...

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Abstract

When VRRP and ARP Proxy are applied to route at same time, the method takes full advantage of system resources and guarantees reliability of message transmission. Based on forwarding capability and network bandwidth of each router in VRRP backup group, the method responds ARP request by different MAC addresses. Associated judgment function of ARP Proxy and VRRP, virtual MAC function and function for determining ARP response are added to route to combine ARP Proxy with VRRP harmoniously.

Description

technical field [0001] The present invention relates to ARP Proxy technology, in particular to the technology of using ARP Proxy and VRRP simultaneously. Background technique [0002] In today's widely used Ethernet (Ethernet), if a host wants to communicate directly with another host, it must know the second-layer physical address of the target host, that is, the Medium Access Control (MAC) address, for example , In a local area network (Local Area Network, referred to as "LAN"), the network transmits data in the form of frames, and each frame transmitted in the network includes the MAC address of the target host. Before the host sends a frame, it needs to convert the third-layer address of the target host, that is, the Internet Protocol (IP) address for short, into the MAC address of the target host. "ARP") completes. The basic function of the ARP protocol is to query the target MAC address through the target IP address to ensure the smooth progress of communication. Am...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04L29/06
Inventor 兰保青
Owner 苏师大半导体材料与设备研究院(邳州)有限公司
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