netdev - Re: maximal supported bit rate in traffic control

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Message-ID: <f5797c00-f51f-430c-abf8-db1762f8a993@gmail.com>
Date:   Mon, 14 May 2018 15:26:58 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Eitan Raviv <eraviv@...hat.com>, netdev@...r.kernel.org
Subject: Re: maximal supported bit rate in traffic control



On 05/14/2018 03:15 PM, Eitan Raviv wrote:
> Hi,
> 
> In RHEVM we use traffic control to enable users to shape their QoS on
> the networks they use.
> 
> IIUC from the traffic control man page, the maximal bit rate currently
> supported (RHEL 7.4) is 2^32 - 1 bytes per sec, which translates to 32
> Gibit\s if I have done my maths correctly.
> 
> Does anyone know whether there are any plans to support larger bit
> rate values upstream or downstream soon or at all?
>

At least 3 qdisc got 64bit rates :

HTB (  TCA_HTB_RATE64 ), tbf ( TCA_TBF_RATE64), netem ( TCA_NETEM_RATE64 )

No plans yet for others.