Oracle Database Oracle Clusterware Installation Guide for HP-UX

Checking the Network Requirements
2.6.1 Network Hardware Requirements
The following is a list of requirements for network configuration:
■ Each node must have at least two ports: one for the public network interface, and
one for the private network interface (the interconnect).
If you want to use more than one NIC for the public network or for the private
network, then Oracle recommends that you use NIC bonding.
■ The public interface names associated with the network adapters for each network
must be the same on all nodes, and the private interface names associated with the
network adaptors should be the same on all nodes.
For example: With a two-node cluster, you cannot configure network adapters on
node1 with eth0 as the public interface, but on node2 have eth1 as the public
interface. Public interface names must be the same, so you must configure eth0 as
public on both nodes. You should configure the private interfaces on the same
network adapters as well. If eth1 is the private interface for node1, then eth1
should be the private interface for node2.
■ For the public network, each network adapter must support TCP/IP.
■ For the private network, the interconnect must support the user datagram protocol
(UDP) using high-speed network adapters and switches that support TCP/IP
(Gigabit Ethernet or better required).
■ For the private network, the endpoints of all designated interconnect interfaces
must be completely reachable on the network. There should be no node that is not
connected to every private network interface. You can test whether an interconnect
interface is reachable using a ping command.
2.6.2 IP Address Requirements
Before starting the installation, you must have the following IP addresses available for
each node:
■ An IP address with an associated host name (or network name) registered in the
DNS for the public interface. If you do not have an available DNS, then record the
host name and IP address in the system hosts file, /etc/hosts.
■ One virtual IP (VIP) address with an associated host name registered in a DNS. If
you do not have an available DNS, then record the host name and VIP address in
2-10 Oracle Clusterware Installation Guide
Note: For the most up-to-date information about supported
network protocols and hardware for Oracle RAC installations, refer
to the Certify pages on the OracleMetaLink Web site at the following
URL:
https://metalink.oracle.com
Note: UDP is the default interconnect protocol for Oracle RAC, and
TCP is the interconnect protocol for Oracle Clusterware. You must use
a switch for the interconnect. Oracle recommends that you use a
dedicated switch.
Oracle does not support token-rings or crossover cables for the
interconnect.