On 1 May 2014 18:04, John Bourke <[email protected]> wrote: > > We are about to take receipt of a stream of satellite image data at a rate > 150Mbps, growing to 600Mbps over the next four years. >
What's you multiplication factor? i.e you take 600 in what do you expect to send outbound? > > > This then needs to be redistributed to UK end users on an on demand > basis. So if we get new interesting images (like pictures of where planes > might have crashed in the Indian ocean) then we could get a lot of demand. > Our peak to average ratio is likely to be massive. > Business case sounds more like using a CDN as a distribution method as they have that on demand capacity available and peering/transit relationships where people expect them to have spare capacity (full disclosure - I used to work at a CDN) > > > As we only have a mandate to distribute to the UK, I am thinking that I > can just peer with UK ISPs and deliver the data to their customers. > Peering isn't going to fit here 100% as the more interesting peers (like BT) have a peering policy that require average/peak/95%tile data to be quite high (BT is 1G at lowest part of day for example). You will be able to pick up some peers though. The other issue is that peering with UK ISPs doesn't mean that they will keep the traffic in the UK, so you'll need geo controls on your applications to keep the traffic in the UK (CDN's tend to have this function already) > > > So the plan is to lay in 2x 10G into London and interconnect to one or > more exchanges via an exchange aggregator. > If I was you, I'd put 2 x 1G (only for diversity) into a DC in London, build a cluster for delivery there, connect to transit - buying 1G commits on 10G ports with lots of different providers (4 or 5 so to allow you to spread the load based) and then connecting 10G to LoNAP and LINX. When it grows above X mbps (where X is derived from your business model) I'd build a second cluster in Manchester and repeat, and then Edinburgh, and then Leeds. After that you'll need to see how the individual regional IX rollouts go J -- James Blessing 07989 039 476
