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Method and device for private VLAN (virtual local area network) information management

An information management and private network technology, applied in the field of private network VLAN information management, can solve the problems of low learning efficiency of ARP entries and affecting service performance, etc., and achieve the effect of reducing VLAN configuration operations

Active Publication Date: 2013-06-19
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the VLAN ID corresponding to the requested ARP entry is exactly VLAN 4094, it takes more than 3 minutes for the core switch to learn the ARP entry, and the ARP entry learning efficiency is low, which affects service performance

Method used

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  • Method and device for private VLAN (virtual local area network) information management
  • Method and device for private VLAN (virtual local area network) information management
  • Method and device for private VLAN (virtual local area network) information management

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Embodiment Construction

[0035] The embodiment of the present invention can be applied to the Routing QinQ networking, and is used for dynamic discovery and updating of the inner VLAN Tag of the Routing QinQ. The embodiment of the present invention introduces an interactive process for querying and reporting private network VLAN information between the access switch and the core switch, so that the core switch can detect the private network VLAN of the user equipment and dynamically maintain the private network VLAN entry, thereby Simplifies the configuration operation of specifying the private network VLAN on the core switch. Even if the VLAN on the port on the user device is changed or the VLAN is deleted, the private network VLAN entry can be dynamically and automatically updated on the core switch.

[0036]On the other hand, when there is external traffic sent to the user equipment, but the destination IP address does not have a corresponding ARP entry on the core switch, the core switch sends the ...

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Abstract

The invention discloses a method and a device for private VLAN (virtual local area network) information management. The method and the device are applied to a QinQ network, and a core switching device maintains private VLAN table entries according to private VLAN information carried in exchanged messages by exchanging query messages and report messages related to the private VLAN information between an access switching device and the core switching device. Compared with the prior art, the method and the device have the advantage that VLAN configuration operations of QinQ on the core switching device are decreased.

Description

technical field [0001] The invention relates to the communication field, in particular to a private network VLAN information management method and equipment applied to QinQ networking. Background technique [0002] A large number of VLANs (Virtual Local Area Network, virtual local area network) are required in large-scale networks. Due to the limited number of VLANs, only 4K VLANs are supported. Therefore, it is necessary to use QinQ technology with double-layer VLAN Tags (VLAN tags) to make VLANs get Extended to realize the distinction of 4K×4K users. QinQ is the abbreviation of 802.1Q in 802.1Q, also known as VLAN secondary encapsulation, which is used to encapsulate the user's private network VLAN Tag in the public network VLAN Tag, so that the packets can pass through the carrier's backbone network with two layers of VLAN Tags ( public net). [0003] figure 1 It is a networking method of QinQ. Each user device belongs to a private network VLAN. User traffic is connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/771H04L12/773H04L45/60
Inventor 郑萍萍蒋益群孙策
Owner XINHUASAN INFORMATION TECH CO LTD
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