From: mandy ahuja <mandyahuja013@gmail.com>
To: Jonathan Morton <chromatix99@gmail.com>
Cc: codel@lists.bufferbloat.net
Subject: Re: [Codel] queue-size(in terms of packets) for codel in ns-2.35
Date: Sun, 1 Mar 2015 08:37:41 -0800 [thread overview]
Message-ID: <CALbqCD5P0wYQ1-OcCMn1qiyent9nftEs90s8p-j3dSjs6yJH5w@mail.gmail.com> (raw)
In-Reply-To: <CAJq5cE1q0zSSeVYBxBfTCKdXvNVAk3Q+TC7rJ23ijL62xy2Fxg@mail.gmail.com>
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By knowing the packet size, next what??
On Sun, Mar 1, 2015 at 7:19 AM, Jonathan Morton <chromatix99@gmail.com>
wrote:
> If you know the size of the packets that will be using it, then it is
> simple to cover from one to the other. That's more likely in a simulator
> than the real world though.
>
> IIRC, TCP acks are usually 48 bytes, but this may vary if extension
> options and/or IPv6 are in use. Check this yourself on the traffic you're
> testing. In the forward data flow direction, expect most packets to be at
> the link segment size limit, 1500 bytes for Ethernet.
>
> But if you have heterogeneous or bidirectional traffic, this calculation
> breaks down. This may simply be one limitation of ns2.
>
> - Jonathan Morton
>
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next prev parent reply other threads:[~2015-03-01 16:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-01 15:11 mandy ahuja
2015-03-01 15:19 ` Jonathan Morton
2015-03-01 16:37 ` mandy ahuja [this message]
2015-03-01 16:41 ` Jonathan Morton
2015-03-02 17:24 ` mandy ahuja
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