Vincent Jones will be speaking at the O'Reilly Open Source Convention in San Diego, CA, July 23-27, 2001.
Many organizations depend upon Internet connectivity to support critical applications.
However, your multi-homing strategy must be carefully planned to ensure that you actually improve connectivity for your company, not degrade it. The concept of physical diversity First, I want to discuss the network components that can affect overall connectivity. Because most network failures are due to problems in the WAN links, it does little good to connect to a second ISP if both ISP links are carried over the same communications circuit. Providing complete physical diversity can be difficult and expensive, but the requirement is not limited to ISP connections. All critical network links for internal communications should also be diversified.