Most enterprises with only a few Web servers generally use software load balancing techniques to spread the load because hardware-based balancing appliances are expensive (usually beginning at about $10,000). Kemp Technologies is offering their LM 1500

appliance with Layer 4 and 7 load balancing and SSL acceleration at an entry price of $2,490 while also marketing higher-end products.

Load Balancing and Persistence

The Kemp Technologies LM 1500 supports persistent sessions and a variety of options for data load balancing. From a high-level view, there are two load balancing mechanisms, with additional sub-categories within each of these