What Is Network Load Balancing (nlb)?
Network Load Balancing is the ability to balance traffic across two WAN links without using complex routing protocols like BGP that is Border Gateway Protocol. This capability balances network sessions like web, email, etc over multiple connections in order to spread out the amount of bandwidth used by each LAN user, thus increasing the total amount of bandwidth available. Example: A user has a single WAN connection to the Internet operating at 1.5Mbit/s. They wish to add a second broadband connection operating at 2.5Mbit/s. This would provide them with a total of 4Mbit/s of bandwidth when balancing sessions. Session balancing does just that, it balances sessions across each WAN link. When web browsers connect to the Internet, they commonly open multiple sessions, one for the text, another for an image, another for another image, etc. Each of these sessions can be balanced across the available connections. An FTP application only uses a single session so it is not balanced, however if