Cloud Computing – a view from the Network cloud

1. Cloud Computing – a view from the Network cloud Martin Swany

2. How does Cloud computing change our world? • In one sense, not at all • Network metrics still important (NM-WG) • Network models still important (NML-WG) • In another sense, this work becomes even more critical • Network metrics aren’t exported from commercial networks! • Network structures aren’t visible – Will you outsource to a network into which you have no visibility?

3. Networks as a Resource • We’re good at controlling the compute and storage resources “in the cloud” • But what about the cloud itself? • Control of networks as a resource has been discussed in this community for quite some time • GHPN-RG, new WG under investigation • Is treating the network as a another manageable, schedulable resource critical functionality for Cloud computing or not? • Some say we should wait for the capacity to increase

4. Network Capacity – heads in the clouds • Network capacity is like processor capacity • They keep getting faster and cheaper • Performance increases are easier in the core than at the edge • Cloud computing will (further) complicate peering relationships between providers • Just wait for your ISP to buy more bandwidth • Cloud computing will cause traffic characteristics to change quickly • There are economic issues that are largely hidden (with recent network neutrality discussions bringing them to light.)

5. Dynamic Circuit Networking • Internet2 GEANT2 and ESnet are deploying interoperable dynamic networks • enabling the automated set up and connection of short-term, point-to-point circuits • the goal is to provide an automated reservation system to enable users to request circuits either on-demand or as schedulable resource. • Participating in the NML-WG and using pre-standard schema for topology exchange