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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081ea447b4sm23947472eec.23.2026.06.18.08.53.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jun 2026 08:53:01 -0700 (PDT) Date: Thu, 18 Jun 2026 08:52:58 -0700 From: Stephen Hemminger To: netdev@vger.kernel.org Subject: Fw: [Bug 221665] New: tcp_ecn: doc says default is 2, but should be 5 Message-ID: <20260618085258.2d7ccb8a@phoenix.local> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Begin forwarded message: Date: Thu, 18 Jun 2026 13:05:29 +0000 From: bugzilla-daemon@kernel.org To: stephen@networkplumber.org Subject: [Bug 221665] New: tcp_ecn: doc says default is 2, but should be 5 https://bugzilla.kernel.org/show_bug.cgi?id=221665 Bug ID: 221665 Summary: tcp_ecn: doc says default is 2, but should be 5 Product: Networking Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: IPV4 Assignee: stephen@networkplumber.org Reporter: pedretti.fabio@gmail.com CC: corbet@lwn.net, pabeni@redhat.com Regression: No Here: https://docs.kernel.org/networking/ip-sysctl.html#:~:text=tcp_ecn tcp_ecn - INTEGER ... Default: 2 However it looks like the default was recently changed: "In previous kernels, the value of tcp_ecn is, by default, two, [...] The new default value is five, [...]" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8ae3e8e6ceedfb3cf74ca18169c942e073586a39 Please address this. Thanks. -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.