I noted that my upgrade of fc17 was running very slowly this morning. I was
getting only about 65-68kB download, and things were pretty slow. Since this is
a regular thing, I checked a few things, and found out that the upgrade was
going over IPv6! It was slow because my connection with a 2nd ISP for IPv6 was
for testing, and is only 768kb right now.
It looks as if yum chooses IPv6 sources when available, over IPv4. Who knew?
Yes, I confirmed with wireshark, really was using v6 for everything but
rpmfusion updates.
--
Bill Davidsen <davidsen@tmr.com>
We are not out of the woods yet, but we know the direction and have
taken the first step. The steps are many, but finite in number, and if
we persevere we will reach our destination. -me, 2010
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06-29-2012, 04:52 AM
Tim
Well-hidden yum feature in fc17
On Thu, 2012-06-28 at 18:03 -0400, Bill Davidsen wrote:
> It looks as if yum chooses IPv6 sources when available, over IPv4. Who
> knew?
There will be a few things that prefer it, because it's supposed to be
better... ;-) and it's the replacement for IPv4 ("replacement" not
"fallback").
When trying to make a connection, the first thing tried is an IPv6
connection. If that fails, then an IPv4 connection is attempted. For
systems without working IPv6 (wholly or partially, e.g. an IPv6 LAN but
IPv4 internet), it means a delay to everything you do.
Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.
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06-29-2012, 08:51 AM
"Bob Goodwin - Zuni, Virginia, USA"
Well-hidden yum feature in fc17
On 06/29/2012 12:52 AM, Tim wrote:
On Thu, 2012-06-28 at 18:03 -0400, Bill Davidsen wrote:
It looks as if yum chooses IPv6 sources when available, over IPv4. Who
knew?
There will be a few things that prefer it, because it's supposed to be
better... ;-) and it's the replacement for IPv4 ("replacement" not
"fallback").
When trying to make a connection, the first thing tried is an IPv6
connection. If that fails, then an IPv4 connection is attempted. For
systems without working IPv6 (wholly or partially, e.g. an IPv6 LAN but
IPv4 internet), it means a delay to everything you do.
Network Manager Edit shows my IPV6 settings as "blank." Am I
suffering this IPV6 delay? Perhaps I should remove Network Manager
from my fixed computers?
This is F17/64 bit.
Bob
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06-29-2012, 01:54 PM
Chris Adams
Well-hidden yum feature in fc17
Once upon a time, Bob Goodwin - Zuni, Virginia, USA <bobgoodwin@wildblue.net> said:
> Network Manager Edit shows my IPV6 settings as "blank." Am I
> suffering this IPV6 delay? Perhaps I should remove Network Manager
> from my fixed computers?
If you don't have a public IPv6 address, then you won't try IPv6, so it
won't cause any delay.
--
Chris Adams <cmadams@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
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06-29-2012, 02:13 PM
"Bob Goodwin - Zuni, Virginia, USA"
Well-hidden yum feature in fc17
On 06/29/2012 09:54 AM, Chris Adams wrote:
Once upon a time, Bob Goodwin - Zuni, Virginia, USA <bobgoodwin@wildblue.net> said:
Network Manager Edit shows my IPV6 settings as "blank." Am I
suffering this IPV6 delay? Perhaps I should remove Network Manager
from my fixed computers?
If you don't have a public IPv6 address, then you won't try IPv6, so it
won't cause any delay.
Thank you Chris, I will forget that then, any problem I see will be
elsewhere.
Bob
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06-29-2012, 10:11 PM
Bill Davidsen
Well-hidden yum feature in fc17
Chris Adams wrote:
Once upon a time, Bob Goodwin - Zuni, Virginia, USA <bobgoodwin@wildblue.net> said:
Network Manager Edit shows my IPV6 settings as "blank." Am I
suffering this IPV6 delay? Perhaps I should remove Network Manager
from my fixed computers?
If you don't have a public IPv6 address, then you won't try IPv6, so it
won't cause any delay.
It seems to use IPv6 instead of the fastest link table, which is how I noticed
this, my standard IPv4 link is 10Mbit, my IPv6 test link is only 768k. However,
now that I understand it, I will either stop IPv6 before upgrade, or live with it.
--
Bill Davidsen <davidsen@tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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06-30-2012, 06:06 AM
Tim
Well-hidden yum feature in fc17
On Fri, 2012-06-29 at 08:54 -0500, Chris Adams wrote:
> If you don't have a public IPv6 address, then you won't try IPv6, so
> it won't cause any delay.
I can't speak for Yum, but if I try to listen to streaming media via
mplayer, the first thing it tries to do is make a connection using IPv6,
waits around for that to fail, then tries the same with IPv4. The delay
is significantly annoying to reconfigure the software to not try IPv6.
Others have said similar things about Firefox being tedious to connect
to some websites. And I don't have a public IPv6 address on my system.
Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.
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Well-hidden yum feature in fc17
