From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 9A31442DAE; Tue, 4 Jul 2023 19:43:12 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 32A0C40A4B; Tue, 4 Jul 2023 19:43:12 +0200 (CEST) Received: from inbox.dpdk.org (inbox.dpdk.org [95.142.172.178]) by mails.dpdk.org (Postfix) with ESMTP id 24ACA40042 for ; Tue, 4 Jul 2023 19:43:10 +0200 (CEST) Received: by inbox.dpdk.org (Postfix, from userid 33) id 0C3AA42DD2; Tue, 4 Jul 2023 19:43:10 +0200 (CEST) From: bugzilla@dpdk.org To: dev@dpdk.org Subject: [Bug 961] PCAP PMD receives packets larger then MTU Date: Tue, 04 Jul 2023 17:43:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: DPDK X-Bugzilla-Component: ethdev X-Bugzilla-Version: 21.11 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: stephen@networkplumber.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: WONTFIX X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: dev@dpdk.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc resolution bug_status Message-ID: In-Reply-To: References: Content-Type: multipart/alternative; boundary=16884925891.5Af5269.829525 Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org --16884925891.5Af5269.829525 Date: Tue, 4 Jul 2023 19:43:09 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All https://bugs.dpdk.org/show_bug.cgi?id=3D961 Stephen Hemminger (stephen@networkplumber.org) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |stephen@networkplumber.org Resolution|--- |WONTFIX Status|UNCONFIRMED |RESOLVED --- Comment #4 from Stephen Hemminger (stephen@networkplumber.org) --- This is not a bug. Other drivers allow bigger frames. It is part of the overall confusion of what does MTU mean in OS. In Linux and FreeBSD, it is maximum transmission unit and it also serves as the minimum receive unit for device drivers. Many device drivers will receive oversize packets, and leave it up to upper layers to handle. It is the device driver version of the robustness princip= le (aka Postel's Law). --=20 You are receiving this mail because: You are the assignee for the bug.= --16884925891.5Af5269.829525 Date: Tue, 4 Jul 2023 19:43:09 +0200 MIME-Version: 1.0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.dpdk.org/ Auto-Submitted: auto-generated X-Auto-Response-Suppress: All Stephen Hemminger changed bug 961

What	Removed	Added
CC		stephen@networkplumber.org
Resolution	---	WONTFIX
Status	UNCONFIRMED	RESOLVED

Comment # 4 on bug 961 from Stephen Hemminger

This is not a bug. Other drivers a=
llow bigger frames.

It is part of the overall confusion of what does MTU mean in OS.
In Linux and FreeBSD, it is maximum transmission unit and it also
serves as the minimum receive unit for device drivers.

Many device drivers will receive oversize packets, and leave it up to upper
layers to handle. It is the device driver version of the robustness princip=
le
(aka Postel's Law).

You are receiving this mail because:

You are the assignee for the bug.

=20=20=20=20=20=20=20=20=20=20

= --16884925891.5Af5269.829525--