Mailinglist Archive: opensuse (1599 mails)

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Re: [opensuse] how many folks running suse 11 are heavily into IPv6?
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Sun, 18 Oct 2009 18:07:29 -0400
  • Message-id: <4ADB91A1.2010307@xxxxxxxxxx>
Per Jessen wrote:
James Knott wrote:


Per Jessen wrote:

Adam Tauno Williams wrote:

]


* is faster for local transfers (gone are MTU/MRU & fragmentation
issues)


How does IPv6 do that - isn't MTU dependent on the ethernet packet
size and router support for the same?



When was the last time you saw anything that didn't support 1500 byte
MTU?


This morning :-)
I have an IPv4 setup which uses IPIP tunnels on the back of LVS, and
those tunnels reduce my MTU to 1440.

Still, how does IPv6 avoid MTU/MRU & fragmentation issues? PMTU is
surely still required.



IPv6 uses path MTU discovery to determine the maximum size.

http://en.wikipedia.org/wiki/Path_mtu_discovery
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