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xen-users
Re: [Xen-users] VLAN configuration
Hi Lauranet,
this is my grub config:
title Xen 3.0.4 / XenLinux 2.6
root (hd0,0)
kernel /xen.gz dom0_mem=384000
module /vmlinuz-2.6-xen0 root=/dev/mapper/vg00-lv00 ro
max_loop=255
module /initrd.img-2.6.16.33-xen0
as you see, I have 256 loop devices. If changing this don't solve you
problem sent me your /etc/init.d/interfaces
Regards,
Marc
Laurent Jouannic wrote:
Hi Marc, and thanks a lot.
It's better now, but still strange:
/etc/xen/scripts/vlan-network-bridge start
start
Set name-type for VLAN subsystem. Should be visible in
/proc/net/vlan/config
Added VLAN with VID == 2 to IF -:eth0:-
Added VLAN with VID == 2 to IF -:eth1:-
ifdown: interface eth0 not configured
SIOCSIFNAME: Device or resource busy
<============= STRANGE
ifdown: interface eth0.2 not
configured
<============= STRANGE
Nothing to flush.
Nothing to flush.
Waiting for peth0.2 to negotiate link.Ignoring unknown interface
eth0.2=eth0.2. <============= STRANGE
Nothing to flush.
Waiting for peth1 to negotiate link.
Link veth1 is
missing.
<============= STRANGE
This may be because you have reached the limit of the number of
interfaces
that the loopback driver supports. If the loopback driver is a
module, you
may raise this limit by passing it as a parameter (nloopbacks=<N>); if
the
driver is compiled statically into the kernel, then you may set the
parameter
using loopback.nloopbacks=<N> on the domain 0 kernel command line.
Apparently, il seems to deal with: loopback
But I put: loop max_loop=64 in /etc/modules
Does I have to include loopback.nloopbacks in my grub.conf
like:
title Xen 3.0.3-1-i386-pae / Debian GNU/Linux, kernel
2.6.18-4-xen-686
root (hd0,0)
kernel /xen-3.0.3-1-i386-pae.gz dom0_mem=200000
loopback.nloopbacks=64
module /vmlinuz-2.6.18-4-xen-686 root=/dev/md2 ro console=tty0
module /initrd.img-2.6.18-4-xen-686
savedefault
I don't know howmuch nloopback I have to put,
is 64 ok ?
It's dangerous to deal with kernel stuff, the machine is not in the
same area....
Thanks. Laurent.
Marc Patino Gómez a écrit :
Hi Laurent,
has you load the vlan kernel module?
# lsmod | grep 8021q
if not :
# modprobe 8021q
I hope it will help you.
Marc
Laurent Jouannic wrote:
Hi to the ML.
I'm new to VLAN configuration, and combining it to XEN is a bit
difficult.
I want to use VLAN because it's possible to "arping" from a domU to
an other, and VLAN looks like; the only solution to prevent that.
May be I'm wrong if someone got a solution, I may be interrested.
I've also tryed ebtables, but nothing to prevent arp question:
who-as IP¨.
The configuration I need is:
-------------
| domU |
-| -[ dom1 ]- |-
| -[ dom2 ]- |
-------------
I want dom1 and dom2 to use eth0 and eth1, with vlan interface.
I've tryed
http://lists.xensource.com/archives/html/xen-users/2007-03/msg00988.html
configuration, but I have the following error:
WARNING: Could not open /proc/net/vlan/config. Maybe you need to
load the 8021q module, or maybe you are not using PROCFS??
Set name-type for VLAN subsystem. Should be visible in
/proc/net/vlan/config
ERROR: trying to add VLAN #2 to IF -:eth0:- error: Invalid argument
ERROR: trying to add VLAN #3 to IF -:eth0:- error: Invalid argument
The machine run on Debian Etch and the vlan package is intalled.
If you have some ideas, I'm stuck!!!
Thanks.
Laurent.
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