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Re: [PATCH 0/2] net: Set maximum receive packet size on veth interfaces

From Stephen Hemminger <stephen@networkplumber.org>
Newsgroups linux.kernel
Subject Re: [PATCH 0/2] net: Set maximum receive packet size on veth interfaces
Date 2017-05-09 17:50 +0200
Message-ID <tFfyG-3F4-15@gated-at.bofh.it> (permalink)
References <tFcKt-1MB-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue,  9 May 2017 14:44:36 +0200
Fredrik Markstrom <fredrik.markstrom@gmail.com> wrote:

> Currently veth drops all packets larger then the mtu set on the receiving
> end of the pair. This is inconsistent with most hardware ethernet drivers.

There is no guarantee that packets larger than MTU + VLAN tag will be received
by hardware drivers. So why is this necessary for veth? What is your special
use case which makes this necessary?

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Thread

[PATCH 0/2] net: Set maximum receive packet size on veth interfaces Fredrik Markstrom <fredrik.markstrom@gmail.com> - 2017-05-09 14:50 +0200
  [PATCH 1/2] net: Added mtu parameter to dev_forward_skb calls Fredrik Markstrom <fredrik.markstrom@gmail.com> - 2017-05-09 14:50 +0200
  Support for VETH_MRU in libnl Fredrik Markstrom <fredrik.markstrom@gmail.com> - 2017-05-09 14:50 +0200
  [PATCH 2/2] veth: Added attribute to set maximum receive size on veth interfaces Fredrik Markstrom <fredrik.markstrom@gmail.com> - 2017-05-09 14:50 +0200
  Re: [PATCH 0/2] net: Set maximum receive packet size on veth  interfaces Stephen Hemminger <stephen@networkplumber.org> - 2017-05-09 17:50 +0200
  Re: [PATCH 0/2] net: Set maximum receive packet size on veth  interfaces David Miller <davem@davemloft.net> - 2017-05-09 19:50 +0200
    Re: [PATCH 0/2] net: Set maximum receive packet size on veth interfaces Fredrik Markström <fredrik.markstrom@gmail.com> - 2017-05-10 02:50 +0200

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