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From: Juliusz Chroboczek <jch@irif.fr>
To: Sean DuBois <sean@siobud.com>
Cc: T H Panton <tim@pi.pe>, Dave Taht <dave.taht@gmail.com>,
	galene@lists.galene.org
Subject: [Galene] Re: using up more ports in ipv6 for better congestion control
Date: Fri, 16 Jul 2021 03:36:31 +0200
Message-ID: <87a6mnavkw.wl-jch@irif.fr> (raw)
In-Reply-To: <20210715141738.kks3tffttx2x2dde@Seans-MBP.columbus.rr.com>

>> Tim, I'd be very grateful if you could explain what advantages TWCC has
>> over REMB.  For now, I'm sticking with REMB.

> With TWCC the sender knows the metadata of lost packets. If you lose a packet
> with REMB you don't know the send time or the size of the packet. That
> seems like it could be useful information?

I understand that TWCC is more chatty, and sends more detailed information
to the sender.  What I don't understand is why this information is useful:
REMB performs the exact same computation as TWCC, but it does it on the
receiver side, and only sends the result to the sender, thus avoiding the
chattiness but yielding the exact same result.

What am I missing?  What exactly does TWCC buy you?

-- Juliusz

  reply	other threads:[~2021-07-16  1:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-10 15:15 [Galene] " Dave Taht
2021-07-10 15:19 ` [Galene] " Dave Taht
2021-07-10 16:36 ` T H Panton
2021-07-10 16:48   ` Dave Taht
2021-07-11 11:19   ` Juliusz Chroboczek
2021-07-15 14:17     ` Sean DuBois
2021-07-16  1:36       ` Juliusz Chroboczek [this message]
2021-07-16 14:25         ` Sean DuBois
2021-07-15 16:26     ` T H Panton
2021-07-16  1:37       ` Juliusz Chroboczek
2021-07-16 14:46         ` T H Panton
2021-07-16 17:48           ` Juliusz Chroboczek

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