Method for transmitting Ethernet frame in Ethernet tree business and provider edge device

A technology of Ethernet and equipment, which is applied in the field of network communication, can solve the problems such as the inability to achieve effective isolation of E-Tree leaf nodes, and achieve the effect of effective isolation and guaranteed scalability
CN102170385AActive Publication Date: 2011-08-31HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2011-08-31

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Abstract

The invention relates to the field of network communication, in particular to a method for transmitting an Ethernet frame in an Ethernet tree business and a provider edge device. The method comprises the following steps: a virtual local area network (VLAN) network bridge receives the Ethernet frame transmitted by a root node or a leaf node; the VLAN network bridge imports the Ethernet frame into a root VLAN or a leaf VLAN according to the type of a node for transmitting the Ethernet frame and transmits the Ethernet frame to the same virtual switch instance (VSI), wherein the VSI is connected with the VLAN network bridge by at least one root VLAN and at least one leaf VLAN; and the VSI transmits the Ethernet frame to a corresponding opposite-end provider edge (PE) device via a pseudo wire. By using a technical scheme provided by the embodiment of the invention, the VLAN is associated with the type of the node for transmitting the Ethernet frame and the leaf nodes of the E-Tree are effectively isolated to assure the original expansibility of VPLS (Virtual Private LAN Service).
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Description

technical field

[0001] The invention relates to the field of network communication, in particular to a method for sending an Ethernet frame in an Ethernet tree service and an operator edge device. Background technique

[0002] E-Tree is an Ethernet Virtual Connection (EVC) service defined by the Metro Ethernet Forum (MEF), and it has the following characteristics:

[0003] Root (Root) node to leaf (Leaf) node is a one-to-many relationship, and there may be multiple Root nodes;

[0004] The Ethernet frame of the Root node can be sent to any Root node and Leaf node, and the Ethernet frame of the Leaf node can be sent to any Root node;

[0005] Leaf nodes cannot communicate with each other and need to be isolated.

[0006] Asymmetric VLAN technology can implement E-Tree services on Ethernet. In the asymmetric VLAN technology, the root node and the leaf node are connected to the switch through the root port and the leaf port respectively in an untagged manner; configure a sep...

Claims

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