Brian Butterworth wrote: > * ISPs provide rack space for BBC servers inside their network
* Who pays for servers? * Who maintains servers? ISP? Siemens? * Who pays for power usage? > * ISPs provide list of IP addresses to directed to said servers * How is this done? Manually? How many ISPs? Or as fun as those automatic emails to/from Nominet? * ISPs sometimes move users from one end of the country to the other on the same IPs, but via different (effective) POPs. How much information needs to be transmitted to allow closer proxies? * Is the mapping of IPs to logical network layout confidential? > * BBC copies each new file (and deletes) to these servers * How much disk space required? * Standard protocols to copy files? (rsync? HTTP?) New ones? * How can you be sure ISPs delete the content when they are meant to? > * iPlayer software detect and redirects to BBC servers inside ISP network * Big list of IPs to scan on a regular basis. Performance issues? * What if ISP proxy is dead? * What if it dies during playback? * What if it doesn't have the content yet/already deleted it? > * Interim solution until fatter pipes purchased, say 2-3 years. * Agreed. Fibre FTW, as they say. * But who pays? -jeremy - Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. Unofficial list archive: http://www.mail-archive.com/[email protected]/
