Enterprise Replication Speed

Hi All, We're thinking about using ER to replicate a couple of tables to 4 sites around the world (literally). We're thinking of an "update anywhere" scenario. I need to get a sense of the performance. Assuming we can install the fastest lines available, does anybody have an idea of the latency time for an insert at one site to get to another site 10,000 Km away? Also, assume an update occurs in Tokyo, a remote server. If New York is our "central server" and Rio is another of our remote servers, the update will need to go from Tokyo to New York to Rio, right? So if the time for each leg is 10 seconds, I'll need to double that for it to get from Tokyo to Rio. Is this reasonable? I know you can't give me exact numbers but approximate, order-of-magnitude numbers would be helpful. Thanks in advance. -- David -- David Samson, Senior Database Researcher dsamson@ndsisrael.com NDS Technologies Israel Ltd. +972 2-589-4529 PO Box 23012 Fax: +972 2-589-4578 Jerusalem, Israel Cellular: +972 51 287 481