Page Comparison

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• If it is a private network, it is created in a virtual datacenter context

  • If it is an IPv4 address

    • The gateway address is automatically created

    • The VLAN tag is not allocated until the first VM is deployed ( SDN)

      • It will be allocated from the rack's VLAN range that should be configured in the switch or network management system

• If it is an external, public, or unmanaged network, it is created in a datacenter context

  • You enter a VLAN tag

    • This VLAN tag should be already configured in the switch or network management system

    • It should not be in the range of VLANs that the rack will use for private networks

    • For external and public networks, the VLAN tag must be configured in DHCP

• You can create an IP address or a range of addresses by entering the first address and the number of addresses to create

• The IPs in the network are added to the internal IP pool

  • For external or public network

    • IPs are marked as available/not available in the internal IP pool

  • For private network

    • All IPs are marked as available

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• The configuration may include a network interface in any of the Abiquo networks

  • In VM configuration on the Network tab, the user can create a new IP address in a private or public network

  • The user can request an automatically generated IP address, to create a network interface

  • The user can select an existing IP address to create a network interface

  • For each network interface, Abiquo assigns a unique MAC address

    • For public networks, the MAC is generated when the NIC is purchased by the virtual datacenter

    • For external networks, the MAC is generated when the NIC is assigned to the virtual machine

    • For IPv6 networks, the MAC is used to generate the IP address

  • The MAC address is included in network configuration that is sent to the hypervisor

Deploying a VM

When the VM is deployed to a hypervisor

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1. It broadcasts a request for network configuration using DHCP

2. The hypervisor passes the request over the service network

   • The service network is a trunk connection between hypervisors and DHCP for VLAN networks

   • If you are using a DHCP Relay Server

     • the relay forwards the request to the DHCP Server

   • Otherwise

     • the DHCP Server receives the request directly

3. The DHCP Server sends a lease to the service network 

   • If you are using a DHCP Relay

     • the relay forwards the request to the VM

   • Otherwise

     • the VM receives the request directly over the service network

4. The VM can now use its network configuration

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