4.10.1 About Network Routing on Database Servers

There are three logical network interfaces configured on the database servers.

The interface names are:

• Management network: eth0
• Client access network: bond1 or bondeth0
• RDMA Network Fabric network: bond0, bondib0, or ib0 and ib1, or re0 and re1

Note:

The tasks in this section are for Oracle Exadata Database Servers that were configured prior to Oracle Exadata System Software release 11.2.3.2.1.

Starting with Oracle Exadata System Software release 11.2.2.3.0, connections that come in on the management network have their responses sent out on the management network interface, and connections on the client access network have their responses sent out on the client access network interface.

For Oracle Exadata System Software releases earlier than release 11.2.2.3.0, the default route for outbound traffic not destined for an IP address on the management or private InfiniBand network is sent out using the client access network. The tasks in this section modify the routing such that traffic that comes in on the management network has the responses sent out on the management network. Similarly, traffic coming in on the client network has the responses sent out on the client network.

The tasks for network routing are for boot-time routing or real-time routing. The following apply to both types of routing:

• These tasks are for database servers running a release earlier than Oracle Exadata System Software release 11.2.2.3.0.

• The following sample IP addresses, netmasks, and gateways are used in the tasks:

  • Management network has IP address 10.149.49.12, netmask 255.255.252.0 (network 10.149.48.0/22), and gateway 10.149.48.1.

  • Client access network has IP address 10.204.78.15, netmask 255.255.255.0 (network 10.204.78.0/24), and gateway 10.1.78.1.

Note:

If the database server has additional networks configured, then files should be set up for the additional networks.