Network Planning

Overview

You can connect your on-premises data center to the cloud using a standard or hosted connection:

Standard connection
A dedicated port is provided for your exclusive use. You can create standard connections on the console. To improve reliability, you can create multiple connections terminated at different locations and allow them to serve as backups for each other. If the connections of only one carrier meet your requirements, or if only one carrier is right for you, you can create redundancy by configuring different routes for your connections.

Figure 1 Accessing the cloud using standard connections
Hosted connection
If you use a hosted connection to access the cloud, the port you use is shared with other users.

You request a carrier (a partner of Huawei Cloud) to provide a connection to connect to your on-premises data center to Huawei Cloud. The partner has pre-connected dedicated lines to the Direct Connect locations of Huawei Cloud and allocates a connection port to you after receiving your request. This connection port is shared with other users.

Figure 2 Accessing the cloud using hosted connections

Comparison Between Standard Connections and Hosted Connections

Item	Standard Connection	Hosted Connection
Port	Exclusive port	Shared port
Recommended bandwidth	1 Gbit/s to 100 Gbit/s	Less than 1 Gbit/s
Estimated construction period	Two to three months for local lines, and three to four months for long-distance lines	About one month
Parties involved	Connection user, leased line carrier, equipment room provider, and Huawei Cloud	Connection user, leased line carrier, and Huawei Cloud
Process	You create a connection on the console to order a port. You contact the leased line carrier and supervise the line deployment from your on-premises data center to the equipment room at the location you choose. You contact the carrier operating the equipment room at the location you choose to complete the cabling (if required) and connect the jumper inside the equipment room. Your carrier works with Huawei Cloud to commission access devices. You complete required network configuration on the console, including creating a virtual gateway and virtual interface.	The partner deploys the leased line from your on-premises data center to the location you select. The carrier completes the commissioning of access devices. You complete required network configuration on the console, including creating a virtual gateway and virtual interface.
Pricing	Pay for the port (by month or year) to Huawei Cloud. Pay to the equipment room provider at the location for the cabling inside the equipment room. Pay to the carrier of your on-premises data center for the cabling inside the equipment room. Pay to the leased line carrier for other work and the bandwidth. For details, see Billing.	You do not need to pay for the port to Huawei Cloud. Pay to the carrier of your on-premises data center for the cabling inside the equipment room. Pay to the leased line carrier for other work and the bandwidth.

Network Requirements

Your on-premises network must use a single-mode fiber with a 1GE, 10GE, 40GE, or 100GE optical module to connect to the access device in Huawei Cloud. In addition, key parameters such as the LC, wavelength, and distance must be consistent with those of the access device on Huawei Cloud. Examples of optical module parameters: 1 GE, LC single-mode, 1,310 nm, and 10 km
Auto-negotiation for the port must be disabled. Port speed and full-duplex mode must be manually configured.
802.1Q VLAN encapsulation must be supported on all devices of the entire connection, including intermediate devices.
Your device must support Border Gateway Protocol (BGP) and BGP MD5 authentication or static routing.
(Optional) You can configure Bidirectional Forwarding Detection (BFD) on the network.
A physical connection supports jumbo frames with a default maximum transmission unit (MTU) size of 8,500 bytes. If you need to configure a larger MTU, contact the Direct Connect manager.
If you ping the IP address of the local gateway of a Direct Connect connection for connectivity test, the MTU is 1,500 bytes.
Private IP addresses are recommended for cloud and on-premises servers, and the IP address ranges used for communications cannot overlap.