A flexible, private connection between your instances
The emergence of software-defined networks (SDNs) in cloud infrastructures has given users increased flexibility when it comes to network management. In this spirit, the OVH Public Cloud lets you design and build your network architecture on demand. By creating private networks, you implement virtual switches that can hot-connect your project instances in real time, without any service interruptions.
Extended networks between regions
Public Cloud Private Networks are built on OVH vRack technology. You can use it to extend private networks between OVH datacentres, connecting instances across different regions around the world through private communication channels.
You can create up to 4,000 level 2 private networks. In concrete terms, launching a Private Network implements a new VLAN, whose communications are only accessible to the resources connected to it. This isolation can be used to segment control plane and data plane networks, for example.
Extension to other OVH services
You can also use the vRack to connect different OVH services to one another. You can extend your Public Cloud Private Network to connect with your Private Cloud or dedicated servers, for example. This way, you can distribute your application to suit your needs, while keeping the connections private.
Create a Private Network
openstack network create net01
Create a subnet with DHCP
openstack subnet create subnet01 --network net01 --subnet-range 10.0.0.0/8
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When you create a network, you can choose to use addressing via DHCP. If you choose this option, a DHCP server will be launched on the network to serve your settings.
The DHCP configuration can include the definition of the DNS servers that should serve your network. This way, you can point to the DNS server of your choice.
DHCP servers can serve a specific CIDR configuration, targeting only a part of the IP address range you have chosen.
Fixed or dynamic addresses
You can choose specific addresses in the network range for a port or instance. You will always need to configure this via DHCP, but you will retain control over the addressing plan by doing so.
Private networks' ports are independent of their instances, so you can detach a port from an instance without losing it. This can be useful for projects that involve infrastructure orchestration.
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