Oracle X6-2-HA Deployment And User's Manual page 169

Chapter 12
About Network Infrastructure and VLANs on Oracle Database Appliance Virtualized Platform
Virtual local area networks (VLANs) are multiple logical networks that are created from
a single physical network switch port. VLANs provide network security isolation for
multiple workloads that share a common network. For example, application, backup,
and management networks. Each VLAN acts as an independent logical network
operating with other VLANs over the same physical connection. This means that
virtual machines deployed on different networks, connected through the same Oracle
VM Server port (or bond), can have traffic directed to different VLANs.
The physical ports in the system at deployment (either copper or fiber) are bonded as
btbond0 in single node platforms and bond0 in multi-node platforms. The VLAN is
created on bond0 or btbond0. For virtualized platforms on X7-2 HA, VLAN can also be
created on eth4 interface.
The network interfaces differ, depending on your Oracle Database Appliance
hardware. In all cases, connections to user domains are through the selected
interfaces. A switch that supports tagged VLANs uses VLAN IDs to identify the packet,
including to which network the packet belongs.
Configuration Overview of Oracle Database Appliance Virtual Machine Local
Area Networks
To specify which network you want to use to access a virtual machine, you employ
network infrastructure components of Oracle Database Appliance Virtualized Platform.
Oracle Database Appliance Virtualized Platform manages all of the high-level network
infrastructure components for you by pre-creating the bridges for all networks. The
front-end point for accessing a virtual machine is one of the bridges defined for Dom0.
When you configure a virtual machine, you define which network the virtual machine
should use by identifying the related bridge.
For example, to connect a virtual machine named myvm1 to the net1 network, you
would use the following command:
oakcli modify vm myvm1 -addnetwork net1
The illustration "Basic Virtual Machine Local Area Network" shows a typical Oracle
Database Appliance local area network configuration that results from this virtual
machine network configuration:
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