Network bandwidth between Web Server, Application Server, and Database Server We recommend using at least 1 Gbps for Production and DR Environment. For Testing Environment, you can use 100 Mbps bandwidth. But we also recommend using 1 Gbps for all environments, if possible.
Network bandwidth between Web Server and Client machine For Intranet (LAN network) - If possible, we recommend using 1 Gbps (gigabit LAN), but you can also use at least 100 Mbps.
For Internet or WAN network - We recommend at least 10 Mbps internet bandwidth for normal application (not more than 50 fields of data per 1 form/page). If your application has more than 50 fields of data or has more than 3 pictures per 1 form/page, you should increase your internet bandwidth to relate with your data. To calculate what bandwidth you should have, we should base with 10 Mbps + your additional data size (data field that more than 50 fields and your additional image or attached file).