Strongest	  arguments	  on	  each	  side	  Understanding	  thePublic vs. PrivatePeering Debate                            ...
Which	  is	  be?er:	  Public	  or	  Private	  Peering?	  •    Many	  strongly	  held	  (almost	  religious)	  views	  •   ...
 	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	                                                         REASONS	 ...
1.	  Aggrega9on	  Benefits	  of	  Public	  Peering	                                                  PUBLIC	  PEERING	  IS	...
2.	  Public	  Peering	  Administra9on	  is	  Easier	                                                        PUBLIC	  PEERI...
3.	  Customers	  like	  Public	  peering	                                                       PUBLIC	  PEERING	  IS	  BE...
 	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	  	                                                         REASONS	 ...
1.	  Private	  Peering	  Sessions	  are	  Easier	  to	  Monitor	                                                          ...
2.	  Private	  Peering	  is	  very	  cost	  effec9ve	                                                       PRIVATE	  PEERI...
3.	  Private	  Peering	  is	  more	  reliable	  and	  easier	  to	    debug	                                              ...
4.	  Private	  Peering	  sessions	  are	  more	  secure	                                                     PRIVATE	  PEE...
5.	  Private	  Peering	  signals	  a	  more	  desirable	  peer	                                                      PRIVA...
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07 public vs-private-peering-debate

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07 public vs-private-peering-debate

  1. 1. Strongest  arguments  on  each  side  Understanding  thePublic vs. PrivatePeering Debate ©2012  DrPeering  Interna9onal   Licensed  material  –  sales@DrPeering.net   h?p://DrPeering.net  
  2. 2. Which  is  be?er:  Public  or  Private  Peering?  •  Many  strongly  held  (almost  religious)  views  •  The  “Great  Debate”  •  Top  3  Reasons  Public  Peering  is  be?er  •  Top  3  Reasons  Private  Peering  is  be?er   2  
  3. 3.                                         REASONS  PUBLIC  PEERING  IS   BETTER  THAN  PRIVATE  PEERING               3  
  4. 4. 1.  Aggrega9on  Benefits  of  Public  Peering   PUBLIC  PEERING  IS  BETTER  •  Many  small  peers  for  a   single  port  cost   –  Private  peering  requires   cross  connects  and   interface  cards  •  Peaks  and  valleys  offset   –  2.5:1  aggrega9on   benefits  •  Large  grada9ons  of  port   sizes   10Mbpsà100Mbpsà1Gb psà10Gbps   –  Scales  well   4  
  5. 5. 2.  Public  Peering  Administra9on  is  Easier   PUBLIC  PEERING  IS  BETTER  •  No  physical  work  to  turn   up  new  peer   –  So_  config  on  both  sides   –  Private  peering  requires  two   sides  to  agree,  order  and   test  cross  connect,  who  pays   for  XC?  •  Trial  peering  easier  •  No  budget  approval   required  to  add  peer  •  Financial  predictability  •  Scales  seamlessly   –  10G  for  many  ~1G  sessions   5  
  6. 6. 3.  Customers  like  Public  peering   PUBLIC  PEERING  IS  BETTER  •  Customers  ask  about   peering  •  Community  building  •  Cost-­‐effec9ve  across   mul9ple  colos   6  
  7. 7.                                         REASONS  PRIVATE  PEERING  IS   BETTER  THAN  PUBLIC  PEERING               7  
  8. 8. 1.  Private  Peering  Sessions  are  Easier  to  Monitor   PRIVATE  PEERING  IS  BETTER  •  SNMP  Counters  on   interface  •  No  blind  oversubscrip9on   problems  •  Some  ISPs  require   migra9on  to  private   peering  when  public   reaches  40%  U9liza9on   8  
  9. 9. 2.  Private  Peering  is  very  cost  effec9ve   PRIVATE  PEERING  IS  BETTER  •  Example:  $800/mo  for   cross  connect  and  port  on   router  •  $800/4Gbps=$0.50/Mbps  •  Peering  follows  80%/20%   rule   –  20%  of  the  peer  generate   80%  of  the  valuable  peering   traffic   9  
  10. 10. 3.  Private  Peering  is  more  reliable  and  easier  to   debug   PRIVATE  PEERING  IS  BETTER  •  Fewer  ac9ve  electronics  •  Less  variability  across   peering  points  •  Public  peering  can  easily   break   –  Connected  to  other  fabrics   –  Unannounced  ac9vi9es   bring  down  your  peering   10  
  11. 11. 4.  Private  Peering  sessions  are  more  secure   PRIVATE  PEERING  IS  BETTER  •  Only  connect  to  those   with  a  prior  contract  •  No  traffic  stealing,   poin9ng  default  •  Less  likely  to  be   compromised  without   knowledge   11  
  12. 12. 5.  Private  Peering  signals  a  more  desirable  peer   PRIVATE  PEERING  IS  BETTER  •  The  big  players  peer   privately  •  They  all  know  who  the   important  peers  are  •  “If  you  think  that  public   peering  is  a  good  idea,   your  just  not  big  enough   yet.”   12  
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