Re: [libvirt] [RFC PATCH] set tap mtu
On Tue, Nov 18, 2008 at 03:16:14PM +0000, Mark McLoughlin wrote:
My take on it is that it needs to be an opt in thing - if path MTU
discovery was sufficient to deal with all cases then we'd probably have
an mtu > 1500 everywhere ... Herbert?
PMTU often breaks due to firewalls. Also even if you have did
a large MTU it is only effective if the entire path supports it.
So for most peers you'll be using an MTU of 1500 or less.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert(a)gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt