From: David Ahern <dsahern@kernel.org>
To: Andrea Mayer <andrea.mayer@uniroma2.it>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Shuah Khan <shuah@kernel.org>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-kselftest@vger.kernel.org
Cc: Stefano Salsano <stefano.salsano@uniroma2.it>,
Paolo Lungaroni <paolo.lungaroni@uniroma2.it>,
Ahmed Abdelsalam <ahabdels.dev@gmail.com>,
Hangbin Liu <liuhangbin@gmail.com>
Subject: Re: [net 1/2] selftests: seg6: disable DAD on IPv6 router cfg for srv6_end_dt4_l3vpn_test
Date: Wed, 10 May 2023 13:55:53 -0600 [thread overview]
Message-ID: <03652ea0-09fc-6185-e71e-5ad603811609@kernel.org> (raw)
In-Reply-To: <20230510111638.12408-2-andrea.mayer@uniroma2.it>
On 5/10/23 5:16 AM, Andrea Mayer wrote:
> The srv6_end_dt4_l3vpn_test instantiates a virtual network consisting of
> several routers (rt-1, rt-2) and hosts.
> When the IPv6 addresses of rt-{1,2} routers are configured, the Deduplicate
> Address Detection (DAD) kicks in when enabled in the Linux distros running
> the selftests. DAD is used to check whether an IPv6 address is already
> assigned in a network. Such a mechanism consists of sending an ICMPv6 Echo
> Request and waiting for a reply.
> As the DAD process could take too long to complete, it may cause the
> failing of some tests carried out by the srv6_end_dt4_l3vpn_test script.
>
> To make the srv6_end_dt4_l3vpn_test more robust, we disable DAD on routers
> since we configure the virtual network manually and do not need any address
> deduplication mechanism at all.
>
> Fixes: 2195444e09b4 ("selftests: add selftest for the SRv6 End.DT4 behavior")
> Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
> ---
> tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
Reviewed-by: David Ahern <dsahern@kernel.org>
next prev parent reply other threads:[~2023-05-10 19:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-10 11:16 [net 0/2] selftests: seg6: make srv6_end_dt4_l3vpn_test more robust Andrea Mayer
2023-05-10 11:16 ` [net 1/2] selftests: seg6: disable DAD on IPv6 router cfg for srv6_end_dt4_l3vpn_test Andrea Mayer
2023-05-10 19:55 ` David Ahern [this message]
2023-05-10 11:16 ` [net 2/2] selftets: seg6: disable rp_filter by default in srv6_end_dt4_l3vpn_test Andrea Mayer
2023-05-10 19:56 ` David Ahern
2023-05-12 1:10 ` [net 0/2] selftests: seg6: make srv6_end_dt4_l3vpn_test more robust patchwork-bot+netdevbpf
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