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GN3plus What the network should do for clouds?

In the GN3plus Symposium presentation from October 2013, Christos Argyropoulos of NTUA discusses the critical advancements needed for cloud network capabilities, including dynamic provisioning without human intervention, elasticity, mobility, and multi-tenancy isolation. The session covers requirements for intra- and inter-data center networking, highlighting challenges such as port density and latency while proposing innovative solutions like Software-Defined Networking (SDN) and Open Networking Foundation protocols. These innovations are vital in creating efficient, reliable cloud networks that meet evolving demands.

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GN3plus What the network should do for clouds?

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  1. GN3plusWhat the network should do for clouds? Christos Argyropoulos National Technical University of Athens (NTUA)Institute of Communications & Computer SystemsNetwork Management & Optimal Design Lab(NETMODE)(GN3plus - GRNET 3rd Party) GN3plus Symposium, October, 2013, Vienna

  2. Someone asked for.. • Dynamic provisioningNo-human interaction, fast provisioning/deployment • Elasticity • Resource upscaling/downscaling on demand • Mobility/Migration • Rearrangement of resources • Isolation • Sharing of resources in a multi-tenant environment among users (tenants) that are unaware of each other profiles(the ultimate: independence without interference)

  3. Clouds started to deliver..What about networks ? • Need for.. Enhancements.. • Intra – DC (Data Center) networking • Higher Port density • Lower latencies on switchingProgrammable Fabric/Flow forwarding • Software switching inside hypervisors • Inter – DC networking Layer 2 connectivity Multi-tenancy Resource/Service Mobility Use-cases: load-balancing, disaster recovery

  4. Intra – DCCloud Requirements Clouds generate Requests

  5. Intra – DCNetwork Design Challenges Requests raise Challenges Port density Low latency switching High availability etc.

  6. Intra – DCNetwork Design Innovation Challenges trigger Innovation

  7. Intra – DCNetwork Design Solutions SDN Innovation generates Solutions

  8. Inter – DCCloud Requirements Clouds generate Requests

  9. Inter – DC Network Design Challenges Requests raise Challenges

  10. Inter – DC Network Design Innovation Requests trigger Innovation

  11. Inter – DC Network Design Innovation OpenDaylight Open vSwitch … SDN Innovation generates Solutions

  12. Open Networking Foundation (ONF)SDN View Network Programmability DC-manager (and authorized users) Separate Control-Data plane L2 topologies Source: ONF

  13. OpenFlow Protocol/APIFlow Forwarding L2 - L4 flow rules Source: ONF

  14. OpenFlow SwitchManagement & Control Control interfaces Management interface Source: ONF

  15. Open vSwitchArchitecture Source: Linux Foundation

  16. Questions? Thank You !

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