Unlock instant, AI-driven research and patent intelligence for your innovation.

Access method and device for virtual network to extranet

A technology of virtual network and external network, applied in the field of computer network, can solve the problem of unguaranteed sending order, etc., achieve the effect of reducing the number of flow tables, reducing impact and improving system performance

Active Publication Date: 2016-07-27
NEW H3C TECH CO LTD
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The execution of multiple actions needs to be performed in order of priority, but the order of sending packets is not guaranteed

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Access method and device for virtual network to extranet
  • Access method and device for virtual network to extranet
  • Access method and device for virtual network to extranet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to access the external network from the virtual network, for example, to access the traditional physical network from the virtual network to realize the connection between the virtual network and the traditional physical network, one solution is to deploy an external network gateway device in the network, and the external network The gateway device is used to connect the virtual network and the external network. When a device in the virtual network wants to access a server in the external network, the corresponding traffic will be forwarded to the external network gateway for unified forwarding.

[0044] figure 1 It is a schematic diagram of the virtual network accessing the external network based on the external network gateway device.

[0045] like figure 1 as shown,figure 1 The virtual network in the example above is an Overlay network. In the Overlay network, the next hop of the default route of each virtual machine (VirtualMachine, VM) is the VM gateway....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an access method and device for a virtual network to an extranet. The method comprises the steps: transmitting routing information and ARP (address resolution protocol) item information to a virtual machine, wherein the routing information indicates that a next hop of flow transmitted to the extranet is a pre-built logic extranet gateway, and the ARP item information comprises the MAC address of the logic extranet gateway; transmitting a flow table to a switcher, wherein the flow table indicates that the flow which takes the MAC address of the logic extranet gateway as the target MAC address is transmitted to an actual extranet gateway. According to the embodiment of the invention, the method can achieve the access from the virtual network to a network outside the virtual network.

Description

technical field [0001] The invention relates to the technical field of computer networks, in particular to a method and a device for a virtual network to access an external network. Background technique [0002] The OpenFlow network is a new type of network proposed by Stanford University. It enables traditional Layer 2 and Layer 3 switches to have fine-grained flow forwarding capabilities, that is, from traditional MAC address-based forwarding and IP address-based forwarding to Flow forwarding based on packet header description. At the same time, the traditional control plane is separated from the forwarding device, and all forwarding behavior decisions are "migrated" from the switch itself to the controller. [0003] Specifically, the OpenFlow network includes a controller (Controller) and a switch (Switch). The controller sends a flow table to the switch, and the switch performs packet search and forwarding according to the flow table. [0004] Each flow entry of the fl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/12H04L12/741H04L45/74
CPCH04L61/103G06F9/455G06F9/45558G06F2009/45595H04L49/70H04L45/64H04L45/42
Inventor 宋渊傅嘉嘉
Owner NEW H3C TECH CO LTD