On Thu, 14 Jan 2010 22:02:50 +0700
"Fajar A. Nugraha" <fajar@fajar.net> wrote:
> On Thu, Jan 14, 2010 at 9:33 PM, Jingyun He <jingyun.ho@gmail.com>
wrote:
> > Hello,
> > Sometimes after rebooting the domU, the domU completely will lose the
> > network, we have to destroy the domU, and re-create it, then
> > everything will be OK.
> > Any one can help me?
I have observed the same with xen 3.3.1, xenified dom0 and pvops
domU''s. It possibly happens to a xenified domU too, but I
don''t know. I don''t have to destroy the domU, I just reboot it
again and often the interface then works. All my domU''s have 2 network
interfaces and I''ve only ever seen it affect one at a time.
> That should not happen. My guess is it''s one of:
> - you don''t specify static MAC address on domU config file, and
your
> switch/router doesn''t like that
I have static MAC''s for my domU''s.
> - you''re using a buggy version of Xen/kernel/distro combination.
In
> this case updating to latest available version might help. FWIW,
> RHEL/Centos 5 works great on my setup.
No denying it''s a bug. I cannot upgrade. It doesn''t bother me
much.
> - you hit iptables connection tracking limit on dom0. In this case,
> it''s not actually destroy-and-recreate that fixed the issue. check
out
> /proc/sys/net/ipv4/netfilter/ip_conntrack_max and
> /proc/sys/net/ipv4/netfilter/ip_conntrack_count
Not even close.
Cheers,
Brad
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