Method, control equipment and system for generating ARP (Address Resolution Protocol) table entry

An ARP entry and device control technology, applied in the field of communications, can solve the problem of user traffic packet loss, and achieve the effect of avoiding packet loss

Active Publication Date: 2013-04-17
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a method for generating ARP entries, a control device and a system to solve the problem of packet loss in user traffic after the backup device is upgraded to the active device in the VRRP backup group

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  • Method, control equipment and system for generating ARP (Address Resolution Protocol) table entry
  • Method, control equipment and system for generating ARP (Address Resolution Protocol) table entry
  • Method, control equipment and system for generating ARP (Address Resolution Protocol) table entry

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Embodiment Construction

[0034]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 described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] The embodiment of the present invention relates to an OpenFlow network architecture in which control and forwarding are separated. Compared with the traditional centralized network equipment, the control and forwarding separation is to separate the forwarding plane and the control plane of the network equipment, and deploy them on two different equipment. Message...

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Abstract

The invention relates to the technical field of communication and discloses a method, control equipment and a system for generating an ARP (Address Resolution Protocol) table entry. The method comprises the following steps that: the control equipment receives a first ARP table entry which is transmitted by a first repeater and corresponds to user equipment, wherein the first ARP table entry comprises the IP (Internet Protocol) address of the user equipment, the MAC (Media Access Control) address of the user equipment and a first output interface from the first repeater to the user equipment; the control equipment replaces the first output interface in the first ARP table entry by using a second output interface to generate a second ARP table entry according to the stored information of a path from a second repeater to the user equipment, wherein the information of the path comprises the IP address of the user equipment and the second output interface from the second repeater to the user equipment; and the control equipment transmits the second ARP table entry to the second repeater. Therefore, the problem that the packet loss of user flow occurs after standby equipment in a VRRP (Virtual Router Redundancy Protocol) backup group is upgraded to be master equipment is solved.

Description

technical field [0001] The invention relates to the field of communication technologies, in particular to a method, control device and system for generating ARP entries. Background technique [0002] In the data center network, user data is aggregated to the gateway. In order to realize data transmission, the virtual local area network interface (VLANIF) created on the gateway is usually used for user access, and in order to achieve redundancy protection, also The Virtual Router Redundancy Protocol (VRRP) will be enabled on the VLANIF interface to provide the backup function for the gateway, that is, a VRRP backup group will be created by running the VRRP protocol. The VRRP backup group consists of an active device and several Under normal circumstances, the user's uplink access service is undertaken by the main device. When the main device fails or the link is abnormal, the backup device will be upgraded to the main Standby switchover"), the standby device takes over the w...

Claims

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Application Information

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IPC IPC(8): H04L12/713H04L45/586
Inventor 李文辉子康倪辉李华赵晖
Owner HUAWEI TECH CO LTD
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