Method and device for mapping VLAN (Virtual Local Area Network) among DC (Data Center) sites

A technology between data centers and sites, applied in the field of communication, can solve the problems of dependence, increase the complexity of EVI network configuration and maintenance costs, etc.

Active Publication Date: 2014-05-21
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since VLANs are configured in pairs, the correctness of VLAN mapping greatly depends on the user configuration of each site. Only when the ED (Edge Device, edge device) of each data center site is correctly configured with t

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  • Method and device for mapping VLAN (Virtual Local Area Network) among DC (Data Center) sites
  • Method and device for mapping VLAN (Virtual Local Area Network) among DC (Data Center) sites
  • Method and device for mapping VLAN (Virtual Local Area Network) among DC (Data Center) sites

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Embodiment Construction

[0034] At present, when data centers with different geographic locations form a large Layer 2 network through EVI technology, if different data centers assign different VLANs to the same service, after the data centers are interconnected, the two The same service can be intercommunicated between different data centers only after VLAN mapping is performed on the two configured VLAN mapping relationships and VLAN IDs are converted to each other. In the EVI network, when different data centers perform VLAN mapping, specifically, the TLV ( Type Length Value, type length value). The current Layer 2 IS-IS LSP packet on the EVI network carries the TLV of the site ID. The specific packet format is as follows: figure 1 As shown, the Site Priority and Site Description fields are not used, and are filled with 0 in the packet. It can be seen from the definition and message format of this TLV that the utilization rate of some fields of this TLV is relatively low, and there is a lack of c...

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Abstract

The invention provides a method and a device for mapping a VLAN (Virtual Local Area Network) among DC (Data Center) sites, which are applied to any edge equipment in an EVI (Enhanced Vegetation Index) network. The method comprises the steps of receiving the announcement messages of other sites in the EVI network, and acquiring identity labels and VLAN mapping information in the announcement messages; judging whether the identity labels are the identification tags of issuers, if so, locally storing the VLAN mapping information in the announcement messages, and completing the ID switching of the VLAN of sites according to the stored VLAN mapping information. Through the method, the complexity of the configuration of same businesses of different sites in the prior art can be simplified, the degree of dependence on user configuration can be reduced, and the usability of the VLAN mapping can be enhanced.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and device for mapping VLANs between data center sites. Background technique [0002] With the massive deployment of data centers, the extension of IS-IS (Intermediate System to Intermediate System, intermediate system to intermediate system) protocol is applied to the layer 2 network to realize the technology of layer 2 routing information exchange, which is adopted by more and more solutions. use. When data centers with different geographical locations form a large layer-2 network through EVI (Ethernet Virtualization Interconnect) technology, the information exchange between the same business is based on the same VLAN (Virtual Local Area Network, virtual local area network) to achieve. If before this, different data centers have assigned different VLANs to the same service, then VLAN mapping must be performed after the data centers are interconnected to realiz...

Claims

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Application Information

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IPC IPC(8): H04L12/46
Inventor 羊俊
Owner NEW H3C TECH CO LTD
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