Re: [ovirt-users] Users Digest, Vol 71, Issue 37
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Le 8 ao=FBt 2017 =E0 14:53, Moacir Ferreira =
<moacirferreira(a)hotmail.com> a =E9crit :
=20
But if you receive a 9000 MTU frame on an "input" interface that =
results sending it out on an interface of a 1500 MTU, then if you set DF =
bit the frame will just be dropped by the router.
The frame will be dropped and the router will send an ICMP message =
"packet to big" to the sender, it's network stack will received that, =
learn that the PMTU is lower and try with smaller fragment, see =
https://en.wikipedia.org/wiki/Path_MTU_Discovery.
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<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
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-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">Le 8 ao=FBt 2017 =E0 14:53, Moacir Ferreira <<a =
href=3D"mailto:moacirferreira@hotmail.com" =
class=3D"">moacirferreira(a)hotmail.com</a>&gt; a =E9crit
:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div
=
id=3D"divtagdefaultwrapper" dir=3D"ltr" style=3D"font-style:
normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; font-size: 12pt; font-family: Calibri, =
Helvetica, sans-serif;" class=3D""><div style=3D"margin-top:
0px; =
margin-bottom: 0px;" class=3D"">But if you receive a 9000 MTU frame on
=
an "input" interface that results sending it out on an interface of =
a 1500 MTU, then if you set DF bit the frame will just be dropped by the =
router.</div></div></div></blockquote><br
class=3D""></div>The frame =
will be dropped and the router will send an ICMP message "packet to big" =
to the sender, it's network stack will received that, learn that the =
PMTU is lower and try with smaller fragment, see <a =
href=3D"https://en.wikipedia.org/wiki/Path_MTU_Discovery" =
class=3D"">https://en.wikipedia.org/wiki/Path_MTU_Discovery&...
=
class=3D""><br
class=3D""></div></body></html>=
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