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Method and apparatus for processing QinQ message

A processing method and message processing technology, applied in the field of network communication, can solve problems such as large number of combinations, allocation, and limitation of the number of VLANIDs

Inactive Publication Date: 2009-08-19
深圳市智通天下科技服务有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, there is such a problem in the prior art: when configuring a VLAN ID for a user, both the inner VLAN ID and the outer VLAN ID can be within a range
At this time, the number of all possible combinations of port numbers, outer VLAN IDs, and inner VLAN IDs is too large (number of ports × 4K × 4K), and it is difficult for the QinQ access table to support such a large number, so the QinQ access table cannot provide All possible combinations of entries are assigned to each port, which limits the number of VLANIDs configured for users

Method used

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  • Method and apparatus for processing QinQ message

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Embodiment Construction

[0023] Embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0024] In the embodiment of the present invention, a prefix / mask aggregation method is used to classify VLAN ID ranges with the same attributes into one or more prefixes / masks. Through such an aggregation method, the VLAN ID ranges that need to occupy multiple QinQ access entries in the prior art can be aggregated into one QinQ access entry, thereby expanding the number of VLAN ID users actually supported by the QinQ access entry.

[0025] In the embodiment of the present invention, each entry of the QinQ access table includes a prefix / mask as a primary key (primary key) and corresponding control information. The prefix / mask is configured or automatically generated according to the VLAN ID range. The specific implementation of how to generate the prefix / mask according to the VLAN ID range wi...

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Abstract

The invention discloses a method and a device for processing a QinQ message, which relates to the field of network communication; the processing method comprises the steps: keywords are generated at least in accordance with VLAN ID in the QinQ message; the keywords are matched with prefix / mask in a QinQ access list so as to obtain a matching list item in the QinQ access list; and the QinQ message is processed in accordance with the control information of the matching list item. With the adoption of the method and device for processing the QinQ message, VLAN ID which takes up a plurality of QinQ access list items in the prior art is integrated into only one QinQ access list item, thereby increasing the amount of VLAN ID users actually supported by the QinQ access list and saving the valuable resources of the QinQ access list items.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a QinQ (802.1Q in802.1Q) message processing method and device. Background technique [0002] With the massive deployment of Ethernet technology in carrier networks, the use of 802.1Q VLAN (Virtual Local Area Network, Virtual Local Area Network) to isolate and identify users is very limited, because the VLAN ID (identification) defined in IEEE 802.1Q The domain has only 12 bits and can only represent 4096 (4K) VLANs. This is too much for a large number of users that need to be identified in the metro Ethernet, so QinQ technology came into being. [0003] The QinQ protocol is a Layer 2 tunneling protocol based on IEEE 802.1Q technology. It is a technology used to expand the VLAN space. Specifically, a layer of 802.1Q tag header is added on the basis of 802.1Q tagged packets to achieve The purpose of expanding the VLAN space is to realize the transparent transmission of the pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46
CPCH04L12/465
Inventor 周栋臣
Owner 深圳市智通天下科技服务有限公司
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