Double-attach/multi-attach logical packet network method and supplier equipment

A dual-homing, multi-homing technology, applied in dual-homing/multi-homing logical networking, provider equipment field, can solve problems such as inability to send packets to CE3, learning errors, not completely solving the loop-free problem, etc., to avoid The effect of MAC address learning errors, improving reliability, avoiding the possibility of loops
CN1870634AInactive Publication Date: 2006-11-29HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2006-11-29
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

This invention provides a double / single attribute logic grouping method based on the BGP and a device of providers including: setting different CE attribute priorities for the PE belonging to the CE in a VPN, each PE gets the CE attribute priority of the far end PE equivalent to it, when the PE decides that the CE attribute priority of the far end PE equivalent to it is not lower than that of the local, it cancels the virtual connection PW with other PE, which effectively avoids the possibility for generating loops and avoid the error study of MAC address and solves the problem of loops in double-attribute and multi-attribute network grouping.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a dual-homing / multi-homing logical networking method and provider equipment based on the border gateway protocol. Background technique

[0002] Initially, telecom operators provided links to enterprise users in the form of leased lines. This method is not suitable for the current characteristics of enterprises with many branches and rapid growth, and is relatively expensive and difficult to manage. Since then, with the rise of ATM (Asychorize Transport Mode, Asynchronous Transfer Mode) and FR (Frame Relay, Frame Relay) technologies, telecom operators have begun to use virtual circuits to provide users with point-to-point Layer 2 links. Build your own three-layer network on the link to carry IP (Internet Protocol) and other data flows. Because these technologies provide point-to-point Layer 2 links, the configuration is relatively complicated, especially when adding...

Claims

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