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Message forwarding method and device

A message forwarding and message technology, applied in the field of communications, can solve problems such as impact and impact on the stability of distributed data center networks

Active Publication Date: 2017-06-20
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the above situation, when the scale of the distributed data center network is large, the distributed data center network often has virtual machines going online, offline or migrating. In order to ensure that the virtual machines can communicate with each other, each There are often routing announcements in the data center for address learning, which will have a great impact on the CPU (Central Processing Unit, central processing unit) of the internal VTEP in the data center, thereby affecting the stability of the distributed data center network sex

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The present invention will be described in detail below through specific examples.

[0031] refer to figure 2 , figure 2 It is a schematic flowchart of a packet forwarding method provided by an embodiment of the present invention, using the first boundary VTEP of the first data center. Here, the first data center can be any data center in the distributed data center network, such as figure 1 Datacenter 1 and Datacenter 2 are shown. Specifically, t...

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Abstract

An embodiment of the invention provides a message forwarding method and device. The method is applied to a first border VTEP of a first data center and comprises the following steps: obtaining routing announcement carrying first address information; if the first address information is address information of a virtual machine of a second data center, refusing to send the first address information to an internal VTEP of the first data center; storing a first host routing table entry for the first address information; and receiving a first message, which is sent by the internal VTEP of the first data center according to a first network segment routing table entry and the destination address of which is the first address information, and forwarding the first message according to the first host routing table entry, wherein the first network segment routing table entry is used for indicating to forward the message matched with a first network segment included in the first network segment routing table entry to the first border VTEP, the first network segment being a network segment, where the first address information is in. Through the message forwarding method and device, stability of a distributed data center network is improved.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a message forwarding method and device. Background technique [0002] Such as figure 1 As shown, multiple data centers are included in the distributed data center network, and each data center includes: SDN (Software Defined Network, software defined network) controller (such as SDN controller 400, SDN controller 410), internal VTEP ( Virtual eXtensible Local Area Network Tunnel End Point, extensible virtual local area network tunnel end point) (such as internal VTEP110, internal VTEP120, internal VTEP210, internal VTEP220), border VTEP (such as border VTEP100, border VTEP200), route reflector (such as route reflection device 300, route reflector 310) and virtual machines (such as virtual machine 510, virtual machine 520, virtual machine 610, virtual machine 620); wherein, IBGP is run between internal VTEPs in a data center, between internal VTEPs and border VTEPs ( Inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/715H04L12/751H04L45/02
CPCH04L45/02H04L45/04
Inventor 宋小恒
Owner NEW H3C TECH CO LTD