How to use VLANs in Oracle RAC?
It is Oracle’s standing recommendation to separate the various types of communication in an Oracle RAC cluster as much as possible. This general recommendation is the basis for the following separation of communication: • Each node in an Oracle RAC cluster must have at least one public network. • Each node in an Oracle RAC cluster must have at least one private network, also referred to as “interconnect”. • Each node in an Oracle RAC cluster must have at least an additional network interface, if the shared storage is accessed using a network based connection. In addition Oracle RAC and Oracle Clusterware deployment best practices recommend that the interconnect be deployed on a stand-alone, physically seperate, dedicated switch, since it represents the easiest to configure and most secure as well as stable configuration. Many customers, however, have consolidated or prefer to consolidate these stand-alone switches into larger managed switches. Depending on the level of consolidation th