Advanced Operations › Network Configuration Details › Introduction

Introduction

CA 3Tera AppLogic requires the use of two separate and independent networks:

• Private network (that is, the backbone), and
• public network (that is, the external network)

For illustration, see the Network Diagrams. There are two sample configurations:

• Single grid per backbone
• Multiple grids per backbone

Important:

• Each server has at least two physical NICs, one for connecting to the private network and one for connecting to the public network. It is highly recommended that the private network is not connected to anything outside the grid servers and the BFC (if this is violated, the consequences include negative impact on at least stability, performance, and security).
• The server NIC connected to the private network MUST be a Gigabit Ethernet; the private network switch MUST be Gigabit Ethernet and cannot be cascaded or uplinked -- all servers on the same backbone MUST be connected to the same private switch (if this is violated, the consequences include negative impact on stability and performance).

Note: The recommended NIC configuration is: eth0 is the server NIC connected to the private network and eth1 is the server NIC connected to the public network. Contact Technical Support if you need to change this default assignment (usually the only reason to do so is if eth0 is a 100Mpbs NIC).