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Networking is the barrier to Cloud
 

Networking is the barrier to Cloud

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    Networking is the barrier to Cloud Networking is the barrier to Cloud Presentation Transcript

    • Network  is  the  barrier  to  Cloud   Somik  Behera   Twi6er:  @StrikesMe   Open  vSwitch  
    • Acknowledgements:   •  Mar>n  Casado,  Founder  &  CTO  –  Nicira  Inc/VMware  •  James  Hamilton,  VP  &  Dis>nguished  Engineer,  Amazon   Web  Services   Open  vSwitch  
    • Agenda  •  Datacenter  Economics  •  Cloud  Expecta>ons  •  You  would  ask  “Why  is  Network  the  barrier”?   –  Dynamics/Inflexibility  –  NW  aren’t  built  for  flexibility   –  Efficiency  –  Cloud  DC  economics     –  Scale  –  NW  scale  limits  cloud  scale.  •  The  only  Solu>on  –  Move  networking  to  edge.  •  Benefits  •  CloudStack  &  Network  Virtualiza>on   Open  vSwitch  
    • Cloud  Datacenter  Economics   Open  vSwitch  
    • Cloud  Expecta>ons   Dynamic  Environment  Dynamic   • VMs  come  and  go  anywhere  in  the  datacenter.   • Tenants  with  differing  network  requirements  come  and  go.   High  Efficiency  Efficient   • Cloud  ==  Cheaper  than  dedicated   • Cheaper  ==  High  infrastructure  u>liza>on.   Scalable  yet  performant  &  efficient  Scalable   • Single  cloud  across  many  physical  pods  or  even  datacenters.   • High  efficiency  and  high  performance  even  at  large  scale   Open  vSwitch  
    • Cloud  Dynamics  –  Network  is  the  barrier   •  Network  gear  weren’t  built  to  have  config   state.   •  Network  configura>on  is  a  mess   –  Manual  configura>on   –  CLI,  screen-­‐scaping  etc,  very  bri6le,  not  cloud   friendly.   •  No  support  for  IP  mobility   •  Today’s  NW  oversubscrip>on  limits  VM   placement.     Open  vSwitch  
    • Cloud  Dynamics  –  Network  is  the  barrier   Credit:  Borrowed  from  h6p://perspec>ve.mvdirona.com   Open  vSwitch  
    • Cloud  Expecta>ons   High  Efficiency  Efficient   • Cloud  ==  Cheaper  than  dedicated   • Cheaper  ==  High  infrastructure  u>liza>on.   Open  vSwitch  
    • Cloud  Efficiency  –  Network  is  the  barrier   •  Datacenter  Economics  -­‐  Network   –  8%  of  of  monthly  cost  -­‐  Network  gear   –  5.2%  of  power  –  Network  gear   •  Datacenter  Economics  –  Server   –  57%  of  monthly  cost  –  Server  gear   –  64%  of  power  cost  –  Server  gear   –  Server  u>liza>on  –  10-­‐30%  even  aler   virtualiza>on,  in  cloud  environments.   •  Network  HW  cost  not  the  dominant  factor.   Open  vSwitch  
    • Cloud  Efficiency  –  Network  is  the  barrier   •  Biggest  op>miza>on  opportunity  in  DC  cost   model.   –  Improve  server  u>liza>on!   •  Biggest  hurdle  to  improving  server  u>liza>on   in  cloud?   –  Find  out  in  Next  slide  ;)   Open  vSwitch  
    • Cloud  Efficiency  –  Network  is  the  barrier   Virtual  Machines   VM   VM   VM   VM   Physical  Server   Workloads  are  >ed  to  the  Network!   Open  vSwitch  
    • Cloud  Expecta>ons   Scalable  yet  performant  &  efficient  Scalable   • Single  cloud  across  many  physical  pods  or  even  datacenters.   • High  efficiency  and  high  performance  even  at  large  scale   Open  vSwitch  
    • Cloud  Scalability–  Network  is  the  barrier   •  Size  limita>on  of  a  single  broadcast  domain   –  Workload  mobility  &  placement  challenges   •  VLAN  Limita>on   –  Spec.  limita>on  -­‐  4096  limit   –  Implementa>on  -­‐  Server  CPU  u>liza>on  issues.   •  Scale  up  get  expensive  before  reliable   –  “Asympto>cally  approaches  unaffordable  but  never   gets  to  good  enough”  –  James  Hamilton   •  Tradi>onal  NW  management  &  opera>ons  tool   breakdown  –  can’t  run  a  cloud  without  ops!   Open  vSwitch  
    • Network  Sucks  -­‐  So…  what  do  we  do?  •  What  do  we  do   –  Pull  networking  to  the  edge  –  i.e.  Server/Hypervisor.  •  Benefits   –  Simplify  physical  Network  –  Cloud  NW  complexity  not   exposed  to  physical  network   –  Richer  seman>cs  at  edge   –  Distributed  –  less  aggregate  processing  at  a  single   point   –  Solware  is  more  flexible  than  hardware.   Open  vSwitch  
    • How  does  this  work?   VM   VM   VM   VM   VM   VM   VM   VM   VM   Open  vSwitch   Physical  Network   Internet   Open  vSwitch  
    • Benefits  of  this  paradigm  shil  •  Flexible,  efficient  and  be6er  scalable  “cloud”  networks!  •  Network  Hardware  independent  and  non  disrup>ve.  •  Mul>-­‐hypervisor  support  •  Place  and  move  any  workload,  anywhere  •  Supports  both  physical  and  virtual  workloads  •  Programma>c  network  infrastructure  control  •  VLAN  and  MAC  scalability  •  Secure  tenant  isola>on  on  share  physical  infrastructure   Open  vSwitch  
    • This  new  world  and  CloudStack  •  CloudStack  has  a  pluggable  architecture.  •  CloudStack  offers  support  for  many  NW  models   –  Use  tradi>onal  physical  networking   –  Use  Network  Virtualiza>on  non  disrup>vely  •  Nicira  NVP  (  this  new  architecture)  is  a  fully   integrated  Network  Virtualiza>on  solu>on  for   CloudStack  •  Running  in  Produc=on  today  @  Schuberg-­‐Phillis   today!   Open  vSwitch  
    • Thanks!   Q&A  Its  >me  to  Virtualize  the  Network!   Open  vSwitch