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This page describes the platform networks that the system administrator configures in the infrastructure and the cloud networks that the user creates in the Abiquo platform. |
Platform networks
The main platform networks to configure separately
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are as follows:
Management
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network, which is used by the Abiquo platform components to manage the virtual resources.
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The Abiquo Server
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and Abiquo Remote Services server connect to the hypervisors
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on this network
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, to deploy VMs from templates, and manage virtual resources. Abiquo also monitors infrastructure and VMs on this network.
Service
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network, which contains the virtual networks
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for
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the cloud
Public network, which is used to connect VMs to the internet. This network can include multiple public VLANs and different subnets of routable
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internet addresses.
Storage network, which is optional and can be used to connect the hypervisors to storage devices
These networks are shown in the following network topology diagram
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Cloud networks
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Cloud
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In datacenters, cloud tenant networks are the virtual networks that administrators configure to deliver self-service IP addresses to the VMs.
The cloud network types supported by Abiquo are as follows:
Private networks within virtual
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datacenters (in private and public cloud)
External networks accessible from outside the virtual datacenter and outside the platform, and assigned to a single tenant. Used in private cloud with standard networking and integrations.
Unmanaged networks with IP addresses managed outside of Abiquo only and assigned to a single tenant. Used in private cloud
Public networks with public IP addresses and Internet access and can be shared by multiple tenants. Used in private cloud
Public IPs in public cloud, such as AWS Elastic IPs.
The external, unmanaged, and public networks are also called Datacenter networks, because they are managed at the Abiquo datacenter level.
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Cloud network configuration
In private cloud, you can use standard networking or software defined networking (SDN). In public cloud and cloud providers, Abiquo supports provider networking options.
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Private cloud networks
In private cloud with standard networking, private cloud networks are virtual networks (.e.g VLANs) in the service network that is part of the Abiquo platform networks.
For each datacenter, the network administrator should design the configuration (e.g. VLAN tags, switches, SDN) that will be required.
For standard networks, the administrator must configure the cloud platform switches to support the VLANs virtual networks that make up the service network.
The cloud tenant networks supported by Abiquo are as follows:
- Private Networks within virtual datacenters only (but can have internet access using SDN configurations)
- External Networks accessible from outside the virtual datacenter and outside the Abiquo platform. Assigned to a single tenant
- Unmanaged Networks with IP addresses managed outside of Abiquo only. Assigned to a single tenant
- Public Networks with public IP addresses and Internet access. Shared by multiple tenants
For more detailed descriptions of each network, please see Cloud Tenant Networks
Software defined networking
Abiquo supports software defined networking (SDN) through integrations with network managers such as OpenStack Neutron and VMware NSX, providing SDN and firewalls and load balancers When using standard networking you can configure VM IP addresses using DHCP or guest setup. The default configuration is the DHCP server installed by Abiquo but you can also provide your own DHCP server. If a DHCP server is not found, Abiquo will use guest setup with cloud-init and hypervisor tools, requiring compatible templates, or a custom guest setup method.
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Software defined networking integrations in Abiquo
Abiquo has integrations with software defined networking (SDN) systems such as VMware NSX-T, providing easy to configure network blueprints, firewalls, load balancers, NAT, and VPNs in private cloud datacenters or regions.
Typically, the administrator configures the network manager in Abiquo with a set of reserved IPs in a public or external VLAN. The network manager is configured to manage private VLANs on a virtual datacenter level, with a number of reserved IPs in each private VLAN for router, gateway, and load balancers. The network manager can also assign an external or public IP from the reserved range to enable VMs on the private VLAN to access the outsider world, or for a public load balancer address, for example.
Abiquo will connect VMs to the private VLANs, and from here they can have automatic access to other networks through the external or public IP assigned by the network manager.
DHCP or guest setup
Abiquo uses DHCP or guest setup to provide IP addresses to virtual machines. So for virtual networks (private, external and public), you can use the Abiquo DHCP server or supply your own. Abiquo creates leases and sends them to the DHCP Server over the management network using the OMAPI protocol, when the user deploys the virtual machine, and before it powers on. The lease contains the MAC address that Abiquo assigned to the VM and the IP address that the user or Abiquo selected.
If Abiquo does not find a DHCP server, and guest setup is available, Abiquo will inject the network configuration using guest setup. See Guest setup
DHCP relay server
A DHCP Server can be configured to listen on VLANs, where VMs will request their addresses. However, a standard DHCP Server with VLAN configuration can only listen on 200 VLANs. For this reason, Abiquo recommends that you use a DHCP Relay Server, which is a proxy that forwards DHCP requests and responses between the VLANs and the DHCP Server. This configuration can support up to around 1000 VLANs and can also be configured in a hierarchy.
Network service types
To tag multiple network interfaces on your hypervisors and match them to Abiquo datacenter networks (external, unmanaged, public). See Manage Network Service TypesAbiquo uses network virtualization systems to manage private networks and IPs and to manage IPs of managed datacenter networks.
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Public cloud networking
Abiquo supports many different public cloud providers with different types of networking. For example, in AWS, Abiquo onboards and creates VPCs, and manages Elastic IPs. In Google Cloud Platform, Abiquo supports Global (VPC) networks, and subnets.
See the Public cloud integrations and Public cloud providers documentation for more information about specific providers.
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