Message forwarding method and device

A technology of packet forwarding and packet encapsulation, applied in the field of network communication, which can solve the problems of not being able to replace VXLANID, and unable to realize Layer 2 forwarding across VXLAN domains.

Active Publication Date: 2016-10-26
NEW H3C TECH CO LTD
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Problems solved by technology

[0004] However, it has been found in practice that in the traditional inter-WAN data center networking, after the EDC decapsulates the VXLAN-encapsulated packet, the Layer 2 forwarding logic can only re-encapsulate the VXLAN according to the VXLAN ID of the original packet, and cannot replace and The VXLAN ID in the original packet is different from other VXLAN IDs, that is, Layer 2 forwarding across VXLAN domains cannot be implemented.

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0021] See figure 1 , is a schematic flowchart of a message forwarding method provided by an embodiment of the present invention, as shown in figure 1 As shown, the message forwarding method may include the following steps:

[0022] It should be noted that the execution subject of steps 101 to 102 may be an EDC node or a processor of the EDC node in the data center, such as a CPU (Center Process Unit, central processing unit). For the convenience of description, the execution subject of steps 101 to 102 is EDC as an example f...

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Abstract

The present invention provides a message forwarding method and device. The method comprises: when a first VXLAN capsulation message sent by an access node is received and the capsulation processing of the first VXLAN package message is needed, the first VXLAN capsulation message is subjected to de-capsulation process; and when the target terminal and the source terminal of the message after determining decapsulation belong to the same visual forwarding example VSI and belong to different VXLANs and the outlet of the message is a VXLAN tunnel port of the data center edge node EDC node of a remote data center, the de-capsulation message is encapsulated to a second VXLAN encapsulation message according to the second VXLAN identification ID corresponding to the VXLAN tunnel of the EDC node of the remote data center, and the second VXLAN encapsulation message is forwarded through the VXLAN tunnel port of the EDC node of the remote data center. Through adoption of the embodiment of the invention, the message forwarding method and device can realize the two-layer message forwarding of cross VXLAN regions.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a message forwarding method and device. Background technique [0002] In traditional cross-WAN data center (Data Center, DC for short) networking, EDC (Edge Data Center, data center edge node) nodes between different DCs can pass through VXLAN (Virtual eXtensible Local Area Network, Virtual Extensible Local Area Network) tunnel interconnected. Inside the DC, EDC nodes and access nodes (such as Leaf (leaf) nodes) can also be interconnected through VXLAN tunnels. [0003] In this networking, the message from the VM (Virtual Machine, virtual machine) to the gateway is VXLAN-encapsulated on the access node and then forwarded to the EDC node. After receiving the VXLAN-encapsulated message, the EDC performs VXLAN decompression Encapsulation, if the destination MAC (Media Access Control, Media Access Control) address of the message is the MAC address of the local machine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/741H04L12/931H04L12/46H04L45/74
CPCH04L12/4633H04L12/4641H04L45/66H04L45/74H04L49/70
Inventor 张洋
Owner NEW H3C TECH CO LTD
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