A virtual gateway media access control address response method and device

A technology of media access control and virtual gateway, which is applied in the field of virtual gateway media access control address response, can solve the problem of occupying the bandwidth of the metropolitan area network, and achieve the effect of reducing bandwidth occupation

Active Publication Date: 2017-07-14
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Since the hash operation cannot predict which EVI site the source MAC address of the ARP request message belongs to, after load balancing through the virtual router redundancy protocol (Virtual Router Redundancy Protocol, VRRP), a site, such as site A, may be assigned a virtual gateway The MAC address responds to the server of another site, such as site B. Therefore, the traffic of the server of one site (site B) needs to be sent to another site (site A), and another site (site A) performs Layer 3 Forwarding, occupying the bandwidth of the MAN, brings additional pressure to the MAN

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  • A virtual gateway media access control address response method and device
  • A virtual gateway media access control address response method and device
  • A virtual gateway media access control address response method and device

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0020] In the embodiment of the present invention, a virtual gateway media access control address response method is proposed. When the ED receives the ARP request message, according to the port type and MAC status in the virtual forwarder (Virtual Forwarder, VF) table, the load sharing method Selecting a virtual gateway MAC address for ARP response can prevent the server in one site from responding to the virtual gateway MAC address of other sites, thereby reducing the bandwidth occupation of the MAN and causing no additional pressure.

[0021] Each EVI site ED belonging to the same EVI instance is configured as a virtual router redundancy protocol (Virtual Router Redundancy Protocol Extend, VRRPE) gateway device of the same backup grou...

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Abstract

The invention discloses a virtual gateway medium access control address response method. The method comprises the steps that when an ED receives an ARP request message, in the virtual gateway MAC addresses, except the virtual gateway MAC address with the corresponding port type being EVI-LINK port, in a VF list, one virtual gateway MAC address is selected through a load sharing algorithm to be responded to a server which sends the ARP request message, and the ARP request message is not broadcast. On the basis of the identical inventive concept, the invention further provides a device, the bandwidth occupation of a metropolitan area network can be reduced, and no extra pressure is caused.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a virtual gateway media access control address response method and device. Background technique [0002] Ethernet Virtualization Interconnection (Ethernet Virtualization Interconnection, EVI) is an advanced "MAC in IP" technology, which is used to realize Layer 2 Virtual Private Network (Layer2VirtualPrivate Network, L2VPN) technology based on IP core network. EVI only maintains routing and forwarding information on the edge devices of the site without changing the internal and core networks of the site. The overall EVI network consists of a core network, a site network, and an overlapping network. [0003] EVI technology is a large layer-2 technology. In practical applications, when a layer-2 network needs to perform layer-3 forwarding, traffic needs to be forwarded through a gateway. Because the edge devices of the EVI site are connected through an external layer-3 netw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
Inventor 孙策沈岭
Owner NEW H3C TECH CO LTD
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