| Vendor | TurboLinux, Inc. |
| Site | http://www.turbocluster.com/ |
| Licence | Kernel Modules: GNU General Public Licence |
| User Level Applications: Closed Source |
TurboCluster supports layer 4 switching and fail-over in much the same way as IPVS and Heartbeat combined. It is shipped as a modified TurboLinux distribution and comes with several GUI configuration utilities. To set up TurboCluster, routers and servers are defined. For each service a single router is active at any given time and accepts traffic for the floating IP address of the service. Other routers are swapped in using IP address takeover in the case of failure. The servers are the back-end servers to which connections are forwarded. These servers are monitored by the routers and will not be forwarded traffic if they become inaccessible. TurboCluster supports tunnelling and direct routing to forward packets to the back-end servers and both weighted and non-weighted round-robin scheduling algorithms are available. [9]