Neutron Vlan Network principle-5 minutes a day to play OpenStack (92)

we have been learning Neutron local Network,flat network and DHCP service, from this section will be start discussing VLAN network.

VLAN Networks is a network with tag, and is the most widely used type of network in practice.
is an example of a vlan100 network.

1. Three instance are connected to a Linux bridge named "Brqxxxx" via a TAP device. 2. The eth1.100 VLAN interface,eth1.100 connected to Brqxxxx is created on the physical NIC Eth1. 3. Instance the packet sent to Eth1 via eth1.100 will be tagged with vlan100.

If you create another network vlan101,eth1, the VLAN interface eth1.101 will be created accordingly, and the new Lingux Bridge "Brqyyyy" is connected. Each VLAN network has its own bridge, which also enables VLAN-based isolation.

Here is a special reminder : Because the physical NIC Eth1 can walk more than one VLAN of data, then the physical switch with the eth1 connected to the port to be set to trunk mode, rather than access mode.

The next section discusses how to configure a VLAN network in Neutron.

Neutron Vlan Network principle-5 minutes a day to play OpenStack (92)