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([2a01:e0a:b41:c160:6a1d:efff:fe52:1959]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43cf2577cbdsm28379964f8f.33.2026.03.31.07.01.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 31 Mar 2026 07:01:01 -0700 (PDT) Message-ID: Date: Tue, 31 Mar 2026 16:00:59 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Reply-To: nicolas.dichtel@6wind.com Subject: Re: [RFC PATCH net-next 0/3] seg6: SRv6 L2 VPN with End.DT2U and srl2 device To: Stefano Salsano , Andrea Mayer , netdev@vger.kernel.org Cc: "David S . Miller" , David Ahern , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Paolo Lungaroni , Ahmed Abdelsalam , Justin Iurman , linux-kernel@vger.kernel.org References: <20260322000557.12559-1-andrea.mayer@uniroma2.it> <2bb55d10-38a9-4595-baef-678d59bf4059@6wind.com> <56dca998-220c-4c29-bf3d-2a94292d6d32@uniroma2.it> From: Nicolas Dichtel Content-Language: en-US Organization: 6WIND In-Reply-To: <56dca998-220c-4c29-bf3d-2a94292d6d32@uniroma2.it> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Le 27/03/2026 à 02:09, Stefano Salsano a écrit : [snip] >> What is the gain of having two interfaces? >> In term of scalability, it is interesting to have only one interface. > > among our medium-term design goals we have: > > 1) achieving the feature parity with vxlan > 2) being at least isomorphic with vxlan in terms of exposed CLI mechanisms > > in this way we can port the existing vxlan based solution for cloud > infrastructures and container networking to srv6 > > on top of this, we can design srv6 specific machinery for higher efficiency > > therefore, the bridge+sr6 solution has to be supported to achieve feature > parity/isomorphism with vxlan > > on top of this, we also include a solution that does not need the bridge and > terminates an L2 tunnel directly into a single sr6 interface characterized by a > mac address (this is for the decap side) Make sense, thanks for the details. > > for the encap side, we are considering per-mac solutions (see our answer to > Justin) in a way which is aligned with vxlan design for the reasons mentioned above Ok. Regards, Nicolas