In this Example a single BalanceNG node is connected with one interface (“leg”) to one local Layer 2 network (LAN), which transports two Layer 3 IPv4 networks. The load balancing is configured between those two Layer 3 networks towards two target servers. It may be well used for getting started with BalanceNG concepts, but running two Layer 3 networks on a single Ethernet LAN may be confusing in the beginning. One advantage is, that there’s no need to change network topology like cables and switches. Runs with BalanceNG V3 and higher.
This example shows how to implement a virtual cross-cable which connects two virtual TAP interfaces (Linux only). This setup is implemented by one instance, where the other instance may be used to examine the HW performance using the BalanceNG benchmark command.