Subject: Re: SACK scoreboard

From: John Heffner <[email-masked]>
Date: Wed, 09 Jan 2008 09:56:16 -0500

David Miller wrote:
> From: John Heffner <[email-masked]>
> Date: Tue, 08 Jan 2008 23:27:08 -0500
> 
>> I also wonder how much of a problem this is (for now, with window sizes 
>> of order 10000 packets.  My understanding is that the biggest problems 
>> arise from O(N^2) time for recovery because every ack was expensive. 
>> Have current tests shown the final ack to be a major source of problems?
> 
> Yes, several people have reported this.

I may have missed some of this.  Does anyone have a link to some recent 
data?

   -John