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xen-users
[Xen-users] Network-problems with multiple(16) virtual machines
Nobody?
---------- last message ------------------------
Hello list,
I am doing my first tests with xen-3.3.0 on gentoo and am now running
against an unprotocolled limit?
I start 16 exactly equal domains. Each receives an IP via dhcp. Now i
can ping dom0 (192.168.10.10) from every domU (192.168.10.100 - 115,
names are "xen-gentoo-default10..25").
The curious thing is now, that the domains 17 and 20-25 are not able to
reach the outer world? Nor there are log-entries concerning this?
I tried this again for aprovement with an "ping www.yahoo.de" just to
see that dns works. And as told before, all domU are working except
theese seven ones?
Via google i found the hint for changing "nloopbacks", but this didn't
help either?
As you can see in dmesg, i added the options (all modules are builtin).
In ifconfig, there are 16 vifs' listed.
Anybody can help? Downwards i added dmesg, ifconfig and grub-config..
Kind regards, Florian
Dmesg:
--------------------------------
Linux version 2.6.21-xen (root@XEN0) (gcc version 4.1.2 (Gentoo 4.1.2
p1.0.2)) #4 SMP Tue Nov 4 11:24:23 CET 2008
Command line: root=/dev/sda1 console=tty0 loopback.nloopbacks=255
nloopbacks=255 max_loop=255
[...]
--------------------------------
# ifconfig|grep Ethernet :
--------------------------------
eth0 Link encap:Ethernet HWaddr 00:21:5b:d1:a6:a7
peth0 Link encap:Ethernet HWaddr 00:21:5b:d1:a6:a7
vif1.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif10.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif11.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif12.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif13.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif14.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif15.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif16.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif2.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif3.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif4.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif5.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif6.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif7.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif8.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
vif9.0 Link encap:Ethernet HWaddr fe:ff:ff:ff:ff:ff
--------------------------------
Grub-config:
--------------------------------
root (hd0,0)
title Xen 3.3.0 kernel 2.6.21-xen
kernel /boot/xen-3.3.0.gz
module /boot/vmlinuz-2.6.21-xen root=/dev/sda1 console=tty0
loopback.nloopbacks=255 nloopbacks=255 max_loop=255
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