Subject: Re: [PATCH v7 net-next 2/2] tcp: switch rtt estimations to usec resolution

From: Rick Jones <[email-masked]>
Date: Wed, 26 Feb 2014 17:21:25 -0800

On 02/26/2014 05:09 PM, Stephen Hemminger wrote:
> Since srtt is scaled by 8 and is 32 bits, This does reduce the maximum
> possible RTT to 8 minutes or so. Which is fine, just wanted it to be
> noted.

I have encountered some situations recently, admittedly very 
pathological, where the RTT through a VPN connection was measured in 
minutes.  I don't think it got as high as 8 minutes, but it did get as 
high as three or so.  Also mentioned only for the record.

rick jones