netdev - Re: [PATCH net-next 04/11] selftests: pmtu: Introduce tests for IPv4/IPv6 over VxLAN over IPv6

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Date:   Wed, 7 Nov 2018 12:28:21 -0700
From:   David Ahern <dsahern@...il.com>
To:     Stefano Brivio <sbrivio@...hat.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Sabrina Dubroca <sd@...asysnail.net>,
        Xin Long <lucien.xin@...il.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 04/11] selftests: pmtu: Introduce tests for
 IPv4/IPv6 over VxLAN over IPv6

On 11/6/18 2:39 PM, Stefano Brivio wrote:
> Use a router between endpoints, implemented via namespaces, set a low MTU
> between router and destination endpoint, exceed it and check PMTU value in
> route exceptions.
> 
> Reviewed-by: Sabrina Dubroca <sd@...asysnail.net>
> Signed-off-by: Stefano Brivio <sbrivio@...hat.com>
> ---
> This only introduces tests over VxLAN over IPv6 right now. I'll introduce
> tests over IPv4 (they can be added trivially) once DF configuration support
> is accepted into iproute2.

you can add them now and wrapped in a 'does ip support the df option'
check. That is needed regardless of order (kernel vs iproute2).