Re: [Xen-users] Guest Network Some can Ping, Some can't Ping

[Xin Chen <xcheney@xxxxxxxxxxxxxx>]

I use a laptop directly connect to the xen server (domain 0) using cross 
network cable.
It works very well. I started the guest1, It also can ping the guest1 
from my laptop.
Does that mean the xen server can't accept too many connections?? or 
because my switch/hub?? But other servers(not xen) are working fine.
could some one help me?

Xin Chen wrote:

> Sorry for the last empty post....
>
> Actually I only have 1 guest on Xen Server.
> oh, by the way, I assign two ip for the guest1.  Like:
> eth0 and eth0:0
> one is for internal ip , the other is for external ip,
> they are using same mac address, is that alright?
>
> Peter Braun wrote:
>
> > Try to connect with crossover cable directly to the xen host server
> > and check ping.
> > What is the hardware? Which network card? Which xen version and kernel?
> >
> > Second check if there is not in use one MAC more times.
> >
> > I have had similar problem - was not able to ping 9th and more guest.
> > The problem was on switch - limitation of 8 mac per Ethernet port.
> >
> > BR
> >
> > Peter
> >
> >
> > 2007/6/6, Xin Chen <xcheney@xxxxxxxxxxxxxx>:
> >
> > > Hi All,
> > >
> > > Domain 0 : Fedora 6
> > > Guest 1: Fedora 6
> > > Environment: Server and pc clients are in the same network(class c).
> > >
> > > Problem:
> > > pc can ping domain 0 and very good, no timeout.
> > > pc can ping Guest1, say 5 mins, then timeout for some mins, then can
> > > ping again.  It is not stable at all.
> > > Guest1 can ping every pc very well.
> > > It is so strang!
> > >
> > > in config file: it is using 'xenbr0'.
> > >
> > > What I tried,
> > > In domain 0, I switched from eth0 to eth1, even worse:: guest1 can't
> > > ping others either.
> > >
> > >
> > > The server is production DNS server, we are in painful now....
> > >
> > > need help.
> > >
> > > Thanks in advance!
> > >
> > > x
> > >
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> > > Xen-users@xxxxxxxxxxxxxxxxxxx
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