netdev - Re: [PATCH iproute2] ss: add more TCP

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Message-ID: <20130625133352.6d10797a@nehalam.linuxnetplumber.net>
Date:	Tue, 25 Jun 2013 13:33:52 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev <netdev@...r.kernel.org>, Yuchung Cheng <ycheng@...gle.com>,
	Neal Cardwell <ncardwell@...gle.com>
Subject: Re: [PATCH iproute2] ss: add more TCP_INFO components

On Tue, 25 Jun 2013 13:29:17 -0700
Eric Dumazet <eric.dumazet@...il.com> wrote:

> From: Eric Dumazet <edumazet@...gle.com>
> 
> Allow ss -i to display more TCP informations :
> 
> unacked:N   Number of un-acked packets
> retrans:X/Y   X: number of outstanding retransmit packets
>               Y: total number of retransmits for the session
> lost:N       Number of lost packets (tcpi_lost)
> sacked:N     Number of sacked packets (tcpi_sacked)
> facked:N     Number of facked packets (tcpi_facked)
> reordering:N Reordering level (if different of 3)
> 
> Example :
> 
> $ ss -emoi dst 10.7.7.83
> tcp   ESTAB      0      1154056   10.7.7.84:54127    10.7.7.83:34342
> timer:(on,200ms,0) ino:57003 sk:ffff88063c51d0c0 <->
> 	 skmem:(r0,rb89280,t0,tb2097152,f726504,w1436184,o0,bl0) ts sack cubic
> wscale:7,6 rto:310 rtt:107.375/1 mss:1448 cwnd:568 ssthresh:108 send
> 61.3Mbps unacked:568 retrans:0/21 reordering:127 rcv_space:29200
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Cc: Yuchung Cheng <ycheng@...gle.com>
> Cc: Neal Cardwell <ncardwell@...gle.com>

Applied
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