netdev - Re: Multicast packet reordering

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Message-ID: <Y4oBxuq2BXDk4lSC@lunn.ch>
Date:   Fri, 2 Dec 2022 14:46:46 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Etienne Champetier <champetier.etienne@...il.com>
Cc:     netdev@...r.kernel.org
Subject: Re: Multicast packet reordering

On Thu, Dec 01, 2022 at 11:45:53PM -0500, Etienne Champetier wrote:
> Hello all,
> 
> I'm investigating random multicast packet reordering between 2 containers
> even under moderate traffic (16 video multicast, ~80mbps total) on Alma 8.

Have you tried plain unicast UDP?

There is nothing in the UDP standard which says UDP has to arrive in
order. Your application needs to handle reordering. So your time might
be better spent optimizing your application for when it happens.

	Andrew