4.3. Putting the Cluster Together
After determining which of the above routing methods to use, the hardware for the LVS cluster should be linked together on the network.
The adapter devices on the LVS routers must be configured to access the same networks. For instance if eth0 connects to public network and eth1 connects to the private network, then these same devices on the backup LVS router must connect to the same networks.
Also the gateway listed in the first interface to come up at boot time is added to the routing table and subsequent gateways listed in other interfaces are ignored. This is especially important to consider when configuring the real servers.
After physically connecting together the cluster hardware, configure the network interfaces on the primary and backup LVS routers. This can be done using a graphical application such as system-config-network or by editing the network scripts manually. For more information about adding devices using system-config-network, see the chapter titled Network Configuration in the Red Hat Enterprise Linux Deployment Guide. For the remainder of the chapter, example alterations to network interfaces are made either manually or through the Piranha Configuration Tool.