A method and device for realizing intercommunication between a virtual private cloud network and an external network
A technology of virtual private cloud and external network, applied in the field of realizing the intercommunication between virtual private cloud network and external network, can solve the problem of reducing the number of virtual private network of Vxlan gateway, etc., to achieve the effect of speeding up transmission
Active Publication Date: 2019-11-26
ZTE CORP
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[0007] In the existing method for realizing the intercommunication between the virtual private network and the external network, the Vxlan gateway needs to map the Vxlan encapsulation identifier to the Vlan identifier during the process of Vxlan decapsulation and Vlan encapsulation of data. The Vxlan encapsulation identifier is 24 bits, and the Vlan encapsulation identifier is 24 bits. The identifier is 12 bits, so there will be multiple Vxlan encapsulation identifiers corresponding to one Vlan identifier during the mapping process, thus reducing the number of virtual private networks actually supported by the Vxlan gateway
However, no effective method is given in the prior art to avoid the mapping between Vxlan and Vlan during the interworking process between the virtual private network and the external network
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[0056] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings, which cannot be used to limit the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and various manners in the embodiments can be combined with each other.
[0057] see Figure 4 , the present invention proposes a method for realizing intercommunication between a virtual private cloud network and an external network, including:
[0058] Step 100, the Vxlan gateway receives the data from the router, and finds the third flow table entry and the fourth flow table entry corresponding to the data in the first flow table; according to the third flow table entry, it searches the NAT table for the data corresponding to According to the NAT table entry found, the data is sent to the external network according to the found ...
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A method and apparatus for implementing interworking between a virtual private cloud network and an external network. The method comprises: a virtual extensible local area network (Vxlan) gateway receives data from a router, finds a third flow entry and a fourth flow entry that correspond to the data from a first flow table, and searches in a network address translation (NAT) table for a NAT entry corresponding to the data according to the third flow entry; the Vxlan gateway sends the data to an external network according to the found NAT entry; the Vxlan gateway mirrors the data according to the fourth flow entry; the Vxlan gateway searches in a second flow table for a fifth flow entry corresponding to the mirrored data, searches in a NAT rule table for a NAT entry corresponding to the mirrored data according to the found flow entry, and delivers the found NAT entry to the NAT table.
Description
technical field [0001] The invention relates to a virtual private cloud network technology, in particular to a method and a device for realizing intercommunication between a virtual private cloud (VPC, Virtual Private Cloud) network and an external network. Background technique [0002] A VPC is a private cloud that exists within a shared or public cloud. Cloud operators can allocate some resources on the public cloud for users to use, so that users can own and manage the cloud like a private cloud. The private cloud can install servers of different specifications in the form of virtual machines (VM, Virtual Machine); it can install or deploy shared storage of different specifications; it can divide subnets, customize network address space, and customize routing rules; it can be configured The way and rules of intercommunication with the external network; you can install network address translation (NAT, Network Address Translation), firewall, load balancer, virtual private...
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IPC IPC(8): H04L12/46H04L29/12
CPCH04L12/46
Inventor 王静
Owner ZTE CORP