Network Administration - Oracle Exadata Recipes: A Problem-Solution Approach - page 294

After the changes are complete, restart your network services by running one of the following commands:

root@cm01dbm01 ~]# service network restart
... or
root@cm01dbm01 ~]# ifdown eth0
root@cm01dbm01 ~]# ifup eth0

■ recipe 10-7 provides comprehensive steps to change your exadata ip address information. please see this
recipe for the complete set of steps.

Note

How It Works
Exadata Compute Nodes have at least three and typically four different networks. The administration or management
network is called the NET0 network and is used to provide shell access via SSH to the Exadata DMA. The compute
node administration network on each compute node is connected to the embedded Cisco 4948 switch. The compute
node networks are explained as follows:

NET0 /admin network allows for SSH connectivity to the server. It uses the eth0 interface,
which is connected to the embedded Cisco switch.

• The

NET1 , NET2 , NET1-2 /Client Access network provides access to the Oracle RAC VIP address
and SCAN addresses. It uses interfaces eth1 and eth2 , which are typically bonded. These
interfaces are connected to your data center network.

• The

• The IB network connects two ports on the compute servers to both of the InfiniBand leaf

switches in the rack. All storage server communication and Oracle RAC interconnect traffic
uses this network.

NET3 , which is built on eth3 , is also provided. This is often
used for backups and/or other external traffic.
The compute node administration network is also referred to as the NET0 network or management network.
This network is configured during the initial installation process by Oracle ACS based on your site requirements and
as provided in your configuration worksheet.

• An optional “additional” network,

10-2. Configuring the Client Access Network
Problem
You wish to validate and modify the client access network and associated Oracle cluster-related network resources on
the Exadata Compute Nodes.

Solution
In this recipe, we will provide a brief overview of the Exadata Compute Node client access network, show you
how to validate your current network configuration, and modify your client access network configuration on the
compute servers.