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[Xen-users] Re: [Xen-devel] Ethernet MTU

  • To: "Sylvain Coutant" <sco@xxxxxxxxxx>
  • From: "Molle Bestefich" <molle.bestefich@xxxxxxxxx>
  • Date: Wed, 16 Aug 2006 12:18:27 +0200
  • Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 16 Aug 2006 03:19:08 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>
Sylvain Coutant wrote:

Is there any plan to raise supported ethernet mtu above 1500 ?
Currently, packets are dropped above this point.
Even 802.1q tags require explicitly lowering the mtu to 1496 to work.


I thought the IP layer was supposed to fragment packets if they do not
fit in the underlying ethernet's MTU.

(What's the point about fragmentation, otherwise?)

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