Do I need a Layer 7 switch (Application Delivery Controler)?
Loadbalancer.org appliances fully support Layer 7 switching utilizing the high performance Ha-Proxy. But, a layer 7 switch is basically a proxy server. Layer 7 switching is very slow. Instead of switching by URL just switch at layer 4 using DNS. For example instead of switching on /shop and /browse switch on shop.mysite.com and browse.myshop.com. Again we are being a bit negative here, Layer 7 is very flexible and we are working closely with Willy Tarreau to ensure our Layer 7 capabilities are better than the competition. Performance isn’t too bad either on the base R16 at 27,000 TPS for full cookie insertion. BTW: If anyone calls our product an Application Delivery Controler we get very upset, or even worse Application Delivery Network! I can’t believe Wikkipedia has removed the page for Load Balancers and replaced it with F5s ADC marketing garbage. Don’t believe the marketing hype over a very simple and slightly pointless technology. If you want to scale out a Layer 7 solution then t