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[Basic] What is Direct Connect

Latest reply: May 16, 2022 17:57:58 1025 27 15 0 0

Hello, everyone!

This post will share with you the direct connect and the direct connect working principles.

What is Direct Connect?

Direct Connect enables you to set up a dedicated connection between your local data center and a virtual private cloud (VPC). The connection features high security, high speed, low latency, stability, and reliability. You can set up multiple connections between computing resources in different regions in a VPC, connecting your local network, data center, and collocation environment to the VPC in the cloud. This enables you to use legacy facilities and enjoy cloud computing advantages, building a flexible and scalable hybrid cloud computing environment. 

A direct connection consists of two sections. One is a physical connection, connecting your local data center to the direct connection zone, and the other is a virtual link, connecting the direct connection zone to a VPC in the cloud. This document describes the virtual link. To connect your local data center to the Huawei direct connection zone using a physical connection, use a leased physical connection of a carrier. Then, create a virtual gateway, associate it with a VPC, and create a virtual interface to connect the direct connection zone to the VPC. In this way, your local data center will communicate with a VPC in the cloud.

Working principles of a Direct Connect

DC

  • Gateways of basic Direct Connect are deployed on VM-based network nodes, and gateways of enhanced Direct Connect are deployed on hardware switches.

  • A leased physical connection of a carrier is used to connect your local data center to a Direct Connect gateway.

  • A virtual connection is used to connect the Direct Connect gateway to the VPC in the cloud.

  • The virtual gateway is associated with the target VPC.

  • The virtual interface is connected to the target VPC.

On one hand, Direct Connect is quite similar to Virtual Private Network (VPN). On the other hand, they have distinct function differences, which are described in What Are the differences Between VPN and Direct Connect?

Functions 

Ultra-high Security Performance 

The Connection is a private connection and has no connection with the public network. Its network links are used by only users. Therefore, its high-security performance allowing no data leakage can meet the requirements for a network connection from financial or government institutions. 

Stable Network Latency 

Direct Connect provides stable network latency. Fixed routes are configured to avoid unstable latency due to diversion caused by congestion or a fault.

Related Concepts

Connection 

A connection is a leased physical connection of a carrier used to connect your local data center to a direct connection zone. This type of connection enables you to create multiple virtual interfaces to connect to your VPCs. 

Virtual Gateway 

A virtual gateway is a logical gateway for accessing a VPC through a Direct Connect connection. A virtual gateway can be associated with the VPC. Multiple VPCs can share one virtual gateway. If you have multiple connections, you can use one virtual gateway to access the same VPC. 

Virtual Interface 

A virtual interface is an entrance for you to access VPCs using a Direct Connect connection. A virtual interface associates your connection with a virtual gateway, which connects to a VPC so that your network can access the cloud.

That's all, thanks!

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Anno7
Moderator Author Created Nov 14, 2021 12:53:56

good one
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olive.zhao
olive.zhao Created Nov 22, 2021 01:35:24 (0) (0)
Thanks!  
lisali
Created Nov 17, 2021 01:59:13

Thanks for your sharing!
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olive.zhao
olive.zhao Created Nov 22, 2021 01:36:22 (0) (0)
 
NTan33
Created Nov 17, 2021 02:39:41

An option to consider, should the business conditions call for it.
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olive.zhao
olive.zhao Created Nov 22, 2021 01:36:15 (0) (0)
Yes.  
MahMush
Moderator Author Created Nov 19, 2021 04:45:54

informative post
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olive.zhao
olive.zhao Created Nov 22, 2021 01:35:45 (0) (0)
 
user_4358465
Created Nov 21, 2021 14:14:56

Great post. Thank you for sharing
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olive.zhao
olive.zhao Created Nov 22, 2021 01:35:39 (0) (0)
 
piaopiaoran
Created Nov 22, 2021 01:34:03

Nice!
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olive.zhao
olive.zhao Created Nov 22, 2021 01:35:33 (0) (0)
 
simchamnan
Created Nov 24, 2021 14:12:33

cool
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MahMush
Moderator Author Created Nov 25, 2021 05:09:53

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MahMush
MahMush Created Nov 25, 2021 05:14:32 (0) (0)
let s discuss it  
lucian2003
lucian2003 Created Nov 26, 2021 02:01:03 (0) (0)
 
Unicef
MVE Created Nov 25, 2021 05:54:53

I am interested on Virtual Interface point :)
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