Please see inline.


zhangyunfei
2009-03-27



发件人: Nicholas Weaver
发送时间: 2009-03-26 20:38:18
收件人: [email protected]
抄送: Richard Woundy; Nicholas Weaver
主题: Re: [alto] Is there really a 'war' between ISPs and app providers?


On  Mar  26,  2009,  at  7:02  PM,  Woundy,  Richard  wrote:

>  P2P  applications  have  concerns  about  the  privacy  of  their  users,  
> but    
>  do  want  to  cooperate  with  the  ISP  to  optimize  network  traffic  in  
> a    
>  manner  beneficial  to  ISPs.

This  is  also  an  area  where  I  think  the  concerns  are  overblown.    
DIRECT    
bulk-data  P2P  can't  be  privacy  preserving,  because  peers  know  the    
peers  they  get  data  from.    You  can  try  to  be  privacy  preserving  on 
   
ENTRY  to  a  swarm  (closed  world),  but  once  a  peer  is  in  a  swarm,    
privacy-preserving  is  pretty  much  irrelevant.
I support this point!

Indirect  P2P  (eg,  the  UW?  proposal  recently)  is  whats  necessary  for   
 
privacy  preserving,  but  that  grossly  magnifies  bandwidth  cost,    
requiring  2  intermediate  hops  (tor  style).

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