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Control device, control method, and program

A technology of control device and control method, applied in the direction of program control device, digital transmission system, data exchange network, etc.

Pending Publication Date: 2021-04-16
NTT COMM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently, enterprise networks as closed networks (closed area networks) are not designed for SaaS applications

Method used

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  • Control device, control method, and program
  • Control device, control method, and program
  • Control device, control method, and program

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0058]

[0059] figure 2 A functional configuration diagram of the access device 100 in the first embodiment is shown. Such as figure 2 As shown, the access device 100 has a command receiving unit 110, a DNS control unit 120, a public application management unit 130, an SD-WAN routing unit 140, and a plurality of IFs (interfaces).

[0060] As an example of multiple IFs, figure 2 The closed network connection IF150 for connecting to a closed network, the Internet connection IF160 for connecting to the Internet, and the LAN-IF170 for connecting to a LAN are shown in . As shown, closed network connection IF 150 and Internet connection IF 160 are assigned IP addresses.

[0061] As shown in the figure, the closed network connection IF150 is connected to the internal DNS server 210 , the Internet connection IF160 is connected to the external DNS server 310 and the SaaS server 320 , and the LAN-IF170 is connected to the user terminal 10 . In addition, each server is assigned...

no. 2 Embodiment approach

[0134] Next, a second embodiment will be described. Here, differences from the first embodiment will be mainly described.

[0135]

[0136] Figure 15 A functional configuration diagram of the access device 100 in the second embodiment is shown. Such as Figure 15 As shown, the access device 100 in the second embodiment has a configuration in which the proxy control unit 180 is added to the access device 100 in the first embodiment. also, Figure 15 An internal proxy server 220 is shown in . As shown in the figure, here, the IP address of the proxy control unit 180 is Z'.Z'.Z'.Z', and the IP address of the internal proxy server 220 is Z1.Z1.Z1.Z1.

[0137] Such as Figure 15 As shown, the agent control unit 180 has an agent allocation unit 181 and an agent allocation policy management unit 182 .

[0138] In the second embodiment, since traffic is routed to the agent control unit 180, as Figure 16 As shown in (a), a policy related to Z'.Z'.Z'.Z' is newly added to the...

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PUM

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Abstract

A control device connected to a plurality of networks, the control device assigning a packet received from a user terminal to one of the plurality of networks, wherein the control device is provided with: a DNS control unit for receiving a DNS inquiry packet transmitted from the user terminal and assigning the DNS inquiry packet to one of the plurality of networks on the basis of a subject of inquiry in the DNS inquiry; and a routing unit for receiving a packet, determining the destination of the packet on the basis of the destination address of the packet, and transmitting the packet to the determined destination.

Description

technical field [0001] The present invention relates to a technique for speeding up access from a user terminal to a server or the like on a network. Background technique [0002] In recent years, the use of Software-as-a-Service (SaaS: Software as a Service) has exploded in popularity. On the other hand, in SaaS, since the application (application) originally designed to be used in the LAN environment is provided on the cloud (Cloud), its performance is affected by the delay or quality of the network. In particular, the more global the enterprise The greater the expansion, the greater the impact of network latency or quality. [0003] Currently, enterprise networks, which are closed networks (closed area networks), are not designed for SaaS utilization. For example, in many enterprise networks, Internet-facing connection points are limited, causing SaaS connections via the Internet to be detoured. [0004] In addition, when communication between sites, which is communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/903H04L12/70H04L45/741H04L45/85H04L45/02H04L45/42
CPCG06F9/455H04L61/4511H04L61/59H04L67/56H04L67/568H04L45/02H04L45/42H04L45/741
Inventor 沈文裕新井研二可儿岛隆嵯峨毅郎
Owner NTT COMM CORP
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