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[78.154.15.182]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-44a981ded99sm24332121f8f.18.2026.05.04.00.44.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 04 May 2026 00:44:12 -0700 (PDT) Message-ID: Date: Mon, 4 May 2026 10:44:10 +0300 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next 6/6] selftests: net: Add tests for neigh_forward_grat option Content-Language: en-US, bg To: Danielle Ratson , netdev@vger.kernel.org Cc: donald.hunter@gmail.com, kuba@kernel.org, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, horms@kernel.org, idosch@nvidia.com, andrew+netdev@lunn.ch, shuah@kernel.org, ast@fiberby.net, liuhangbin@gmail.com, daniel@iogearbox.net, aroulin@nvidia.com, fmaurer@redhat.com, sdf.kernel@gmail.com, sd@queasysnail.net, kees@kernel.org, nickgarlis@gmail.com, amorenoz@redhat.com, alasdair@mcwilliam.dev, johannes.wiesboeck@aisec.fraunhofer.de, petrm@nvidia.com, linux-kernel@vger.kernel.org, bridge@lists.linux.dev, linux-kselftest@vger.kernel.org References: <20260503073532.2138165-1-danieller@nvidia.com> <20260503073532.2138165-7-danieller@nvidia.com> From: Nikolay Aleksandrov In-Reply-To: <20260503073532.2138165-7-danieller@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 03/05/2026 10:35, Danielle Ratson wrote: > Add tests to validate the neigh_forward_grat bridge option for selective > forwarding of gratuitous neighbor announcements. > > The tests verify per-port and per-VLAN control of gratuitous neighbor > announcement forwarding for both IPv4 (gratuitous ARP) and IPv6 > (unsolicited NA): > - When neigh_suppress is enabled with neigh_forward_grat off (default), > gratuitous announcements are suppressed > - When neigh_forward_grat is enabled, gratuitous announcements are > forwarded while regular neighbor discovery remains suppressed > > For IPv4, use arping to send gratuitous ARP packets. For IPv6, use > mausezahn to craft unsolicited Neighbor Advertisement packets. > > For the per-port tests, the IPv4 test exercises the ip link interface, > while the IPv6 test exercises the bridge link interface. > The per-VLAN tests use the bridge interface throughout, as per-VLAN > attributes are only accessible via 'bridge vlan'. > > Signed-off-by: Danielle Ratson > --- > .../net/test_bridge_neigh_suppress.sh | 298 +++++++++++++++++- > 1 file changed, 296 insertions(+), 2 deletions(-) > Acked-by: Nikolay Aleksandrov