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Subject: Re: GRE/gif/netgraph tunnel speed on 10Gbit channel
To: freebsd-net@freebsd.org
References: <20180529071733.GA18182@hell.ukr.net>
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 <20180529100544.GA58705@hell.ukr.net>
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From: "Muenz, Michael" <m.muenz@spam-fetish.org>
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Date: Tue, 29 May 2018 14:17:54 +0200
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Am 29.05.2018 um 13:33 schrieb Vitalij Satanivskij:
> AVE>
> AVE> So, is there no difference at all? The same bit rate with and without
> AVE> loaded module? Can you share your configs and parameters used for testing?
>
>
> KERNEL - GENERIC
>
> No additional config in src.conf make.conf, no sysct.conf or anything else in configs
>
> 1)  no module
>
> mtu on ixl - 1500 mtu on gre0 - 1476

Can you try MTU 1400 on GRE0 and MSS of 1300 just for testing?
With this values I get 4600Mbit sending and 1400Mbit receiving with 
iperf and 10 parallel streams.

Michael