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Mike Viau

2010-Mar-08 16:49 UTC

[Xen-users] xend-config.sxp setting question & vlans

Hello,



I have a question for the xenners using 1st method of having VMs using VLAN
interfaces with XEN. [http://wiki.xensource.com/xenwiki/XenNetworking]



I''ve setup my /etc/network/interfaces file with bridge enteries like in
the
example:

iface xen-br293 inet manual

    up vconfig add eth0 293

    up /etc/xen/scripts/network start
netdev=eth0.293 bridge=xen-br293 antispoof=no

    up /sbin/ifconfig eth0.293 up

    down /etc/xen/scripts/network stop
netdev=eth0.293 bridge=xen-br293 antispoof=no

    down vconfig rem eth0.293

However now I was wondering was the correct settings for the
"network-script" and "vif-script" in the xend-config.sxp
file. Do I need to create blank scripts, or it there a dummy one I should use
instead of (network-script ''network-bridge'') and(vif-script
vif-bridge) respectively?




I was prepared to specify the exact bridge name in each of my DomU configuration
files, so the automatic networking scripts are not required.



Lastly James Bulpin added: "I then add an init.d script
to bring the interface up between xend and xendomains starting."



Could one provide an example of what they did here. My understanding of that is
to create a shell script like up-xen-bridges with multiple ifconfig lines like:



#!/bin/bash

#

# up-xen-bridges     Script to start the Xen bridges.

#

# Author:       Mike Viau
<viaum@sheridanc.on.ca>

#

# chkconfig: 2345 98 01

# description: Starts the Xen bridges.

### BEGIN INIT INFO

# Provides:         
up-xen-bridges

# Required-Start:    $xend

# Should-Start:

# Required-Stop:     $xend

# Should-Stop:

# Default-Start:     3 4 5

# Default-Stop:      0 1 2 6

# Default-Enabled:   yes

# Short-Description: Start up-xen-bridges

# Description:       Starts the Xen bridges.

### END INIT INFO



case "$1" in

  start)

        ifconfig xen-br293 up

        ifconfig xen-br294 up

        ifconfig xen-br295 up

        ;;

  stop)

        ifconfig xen-br293 down

        ifconfig xen-br294 down

        ifconfig xen-br295 down

        ;;

 restart|reload|force-reload)

        /etc/init.d/up-xen-bridges stop

        /etc/init.d/up-xen-bridges start

        ;;

  *)

        # do not advertise unreasonable
commands that there is no reason

        # to use with this device

        echo $"Usage: $0
{start|stop|restart|reload|force-reload}"

        exit 1

esac



exit $?







And then copy this file to /etc/init.d/up-xen-bridges.



What were the commands you used for updating your System-V style init script
links.



usage: update-rc.d [-n] [-f] <basename> remove

       update-rc.d [-n] <basename> defaults
[NN | SS KK]

       update-rc.d [-n] <basename>
start|stop NN runlvl [runlvl] [...] .

               
-n: not really

               
-f: force





Thanks for looking!





-M



 		 	   		  
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Fajar A. Nugraha

2010-Mar-09 05:13 UTC

head link

Re: [Xen-users] xend-config.sxp setting question & vlans

On Mon, Mar 8, 2010 at 11:49 PM, Mike Viau <viaum@sheridanc.on.ca>
wrote:> Hello,
>
> I have a question for the xenners using 1st method of having VMs using VLAN
> interfaces with XEN. [http://wiki.xensource.com/xenwiki/XenNetworking]
>
> I''ve setup my /etc/network/interfaces file with bridge enteries
like in the
> example:
>
> iface xen-br293 inet manual
>     up vconfig add eth0 293
>     up /etc/xen/scripts/network start netdev=eth0.293 bridge=xen-br293
> antispoof=no
Why?

IMHO you should use only one, not both. So either:
- have xen''s networking script create the bridges, or
- create the bridges manually, and comment-out xen''s networking script
on xend-config.sxp. This is what I prefer to use on complex setup.

-- 
Fajar

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Mike Viau

2010-Mar-09 15:07 UTC

head link

RE: [Xen-users] xend-config.sxp setting question & vlans

> Date: Tue, 9 Mar 2010 12:13:08 +0700
> Subject: Re: [Xen-users] xend-config.sxp setting question & vlans
> From: fajar@fajar.net
> To: viaum@sheridanc.on.ca
> CC: xen-users@lists.xensource.com
> 
> On Mon, Mar 8, 2010 at 11:49 PM, Mike Viau <viaum@sheridanc.on.ca>
wrote:
> > Hello,
> >
> > I have a question for the xenners using 1st method of having VMs using
VLAN
> > interfaces with XEN. [http://wiki.xensource.com/xenwiki/XenNetworking]
> >
> > I''ve setup my /etc/network/interfaces file with bridge
enteries like in the
> > example:
> >
> > iface xen-br293 inet manual
> >     up vconfig add eth0 293
> >     up /etc/xen/scripts/network start netdev=eth0.293 bridge=xen-br293
> > antispoof=no
> 
> Why?
> 
> IMHO you should use only one, not both. So either:
> - have xen''s networking script create the bridges, or
> - create the bridges manually, and comment-out xen''s networking
script
> on xend-config.sxp. This is what I prefer to use on complex setup.
> 
I am comfortable with creating the bridges manually and commenting-out
xen''s networking script on xend-config.sxp as Pasi pointed out in
another thread.

Could someone provide a working example of debian /etc/network/interface file
where a vlan is bridged for use with xen DomUs?

To be honest, I don''t think the 1st method of having VMs using VLAN
interfaces with XEN works with with my Debain Lenny (and possibly other) setup.
I was just trying to follow the wiki as it was written.

However I quickly discovered that the above iface xen-br293 inet manual entry
does not work, because when one tries to bring up xen-br293 one gets:

xen-br293: ERROR while getting interface flags: No such device

I believe this may be do to the fact that the xen-br# devices are not known by
the udev system and thus the iface entries are just ignored. Regardless I think
the wiki should demonstrate how to use xen''s networking script create
the bridges, or how to create the bridges manually (in /etc/network/interface or
other method(s)) while comment-out xen''s networking script on
xend-config.sxp like Fajar suggested.

> -- 
> Fajar
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users 		 	   		  
_________________________________________________________________
Take your contacts everywhere
http://go.microsoft.com/?linkid=9712959

_______________________________________________
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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Guy Roussin

2010-Mar-09 15:20 UTC

head link

Re: [Xen-users] xend-config.sxp setting question & vlans

Hi,>
> I am comfortable with creating the bridges manually and commenting-out 
> xen''s networking script on xend-config.sxp as Pasi pointed out in 
> another thread.
>
> Could someone provide a working example of debian 
> /etc/network/interface file where a vlan is bridged for use with xen 
> DomUs?(debian lenny)
eth0 => admin
eth1 => 3 vlans/bridges

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface

auto eth0
iface eth0 inet static
 address 192.168.6.108
 network 192.168.6.0
 netmask 255.255.255.0
 broadcast 192.168.6.255
 gateway 192.168.6.101

auto eth1.1
iface  eth1.1 inet manual
auto br01
iface br01 inet manual
 network 172.16.0.0
 netmask 255.255.0.0
 broadcast 172.16.255.255
 bridge-ports eth1.1

auto eth1.7
iface eth1.7 inet manual
auto br07
iface br07 inet manual
 network 192.168.7.0
 netmask 255.255.255.0
 broadcast 192.168.7.255
 bridge-ports eth1.7

# The primary network interface
auto eth1.10
iface eth1.10 inet manual
auto br10
iface br10 inet manual
 network x.x.x.128
 netmask 255.255.255.128
 broadcast x.x.x.127
 bridge-ports eth1.10

-- 
Guy 


_______________________________________________
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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Pasi Kärkkäinen

2010-Mar-09 18:43 UTC

head link

Re: [Xen-users] xend-config.sxp setting question & vlans

On Tue, Mar 09, 2010 at 10:07:36AM -0500, Mike Viau
wrote:>    > Date: Tue, 9 Mar 2010 12:13:08 +0700
>    > Subject: Re: [Xen-users] xend-config.sxp setting question &
vlans
>    > From: fajar@fajar.net
>    > To: viaum@sheridanc.on.ca
>    > CC: xen-users@lists.xensource.com
>    >
>    > On Mon, Mar 8, 2010 at 11:49 PM, Mike Viau
<viaum@sheridanc.on.ca>
>    wrote:
>    > > Hello,
>    > >
>    > > I have a question for the xenners using 1st method of having
VMs using
>    VLAN
>    > > interfaces with XEN.
[http://wiki.xensource.com/xenwiki/XenNetworking]
>    > >
>    > > I''ve setup my /etc/network/interfaces file with
bridge enteries like
>    in the
>    > > example:
>    > >
>    > > iface xen-br293 inet manual
>    > >     up vconfig add eth0 293
>    > >     up /etc/xen/scripts/network start netdev=eth0.293
bridge=xen-br293
>    > > antispoof=no
>    >
>    > Why?
>    >
>    > IMHO you should use only one, not both. So either:
>    > - have xen''s networking script create the bridges, or
>    > - create the bridges manually, and comment-out xen''s
networking script
>    > on xend-config.sxp. This is what I prefer to use on complex setup.
>    >
> 
>    I am comfortable with creating the bridges manually and commenting-out
>    xen''s networking script on xend-config.sxp as Pasi pointed out
in another
>    thread.
> 
>    Could someone provide a working example of debian /etc/network/interface
>    file where a vlan is bridged for use with xen DomUs?
> 
>    To be honest, I don''t think the 1st method of having VMs using
VLAN
>    interfaces with XEN works with with my Debain Lenny (and possibly other)
>    setup. I was just trying to follow the wiki as it was written.
> 
>    However I quickly discovered that the above iface xen-br293 inet manual
>    entry does not work, because when one tries to bring up xen-br293 one
>    gets:
> 
>    xen-br293: ERROR while getting interface flags: No such device
> 
>    I believe this may be do to the fact that the xen-br# devices are not
>    known by the udev system and thus the iface entries are just ignored.
>    Regardless I think the wiki should demonstrate how to use xen''s
networking
>    script create the bridges, or how to create the bridges manually (in
>    /etc/network/interface or other method(s)) while comment-out
xen''s
>    networking script on xend-config.sxp like Fajar suggested.
>
Creating the bridges using distro network scripts is obviously distro specific
task.
I can''t remember how to do that in debian /etc/network/interfaces.

In rhel/centos/fedora I do them like this:

/etc/sysconfig/network-scripts/ifcfg-brvlanXY
DEVICE=brvlanXY
BOOTPROTO=none
ONBOOT=yes
TYPE=Bridge

and then it''s just a matter of ''ifup brvlanXY''.

In the /etc/xen/<guest> configuration file remember 
to specify "bridge=brvlanXY" for the vif.

Someone feel free to edit the wiki :)

-- Pasi
>    > --
>    > Fajar
>    >
>    > _______________________________________________
>    > Xen-users mailing list
>    > Xen-users@lists.xensource.com
>    > http://lists.xensource.com/xen-users
> 
>   
--------------------------------------------------------------------------
> 
>    Stay in touch. [1]Get Messenger on your phone now.
> 
> References
> 
>    Visible links
>    1. http://go.microsoft.com/?linkid=9712959
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Mike Viau

2010-Mar-09 19:09 UTC

head link

RE: [Xen-users] xend-config.sxp setting question & vlans

> Date: Tue, 9 Mar 2010 20:43:32 +0200
> From: pasik@iki.fi
> To: viaum@sheridanc.on.ca
> Subject: Re: [Xen-users] xend-config.sxp setting question & vlans
> CC: fajar@fajar.net; xen-users@lists.xensource.com
> 
> On Tue, Mar 09, 2010 at 10:07:36AM -0500, Mike Viau wrote:
> >    > Date: Tue, 9 Mar 2010 12:13:08 +0700
> >    > Subject: Re: [Xen-users] xend-config.sxp setting question
& vlans
> >    > From: fajar@fajar.net
> >    > To: viaum@sheridanc.on.ca
> >    > CC: xen-users@lists.xensource.com
> >    >
> >    > On Mon, Mar 8, 2010 at 11:49 PM, Mike Viau
<viaum@sheridanc.on.ca>
> >    wrote:
> >    > > Hello,
> >    > >
> >    > > I have a question for the xenners using 1st method of
having VMs using
> >    VLAN
> >    > > interfaces with XEN.
[http://wiki.xensource.com/xenwiki/XenNetworking]
> >    > >
> >    > > I''ve setup my /etc/network/interfaces file with
bridge enteries like
> >    in the
> >    > > example:
> >    > >
> >    > > iface xen-br293 inet manual
> >    > >     up vconfig add eth0 293
> >    > >     up /etc/xen/scripts/network start netdev=eth0.293
bridge=xen-br293
> >    > > antispoof=no
> >    >
> >    > Why?
> >    >
> >    > IMHO you should use only one, not both. So either:
> >    > - have xen''s networking script create the bridges, or
> >    > - create the bridges manually, and comment-out xen''s
networking script
> >    > on xend-config.sxp. This is what I prefer to use on complex
setup.
> >    >
> > 
> >    I am comfortable with creating the bridges manually and
commenting-out
> >    xen''s networking script on xend-config.sxp as Pasi pointed
out in another
> >    thread.
> > 
> >    Could someone provide a working example of debian
/etc/network/interface
> >    file where a vlan is bridged for use with xen DomUs?
> > 
> >    To be honest, I don''t think the 1st method of having VMs
using VLAN
> >    interfaces with XEN works with with my Debain Lenny (and possibly
other)
> >    setup. I was just trying to follow the wiki as it was written.
> > 
> >    However I quickly discovered that the above iface xen-br293 inet
manual
> >    entry does not work, because when one tries to bring up xen-br293
one
> >    gets:
> > 
> >    xen-br293: ERROR while getting interface flags: No such device
> > 
> >    I believe this may be do to the fact that the xen-br# devices are
not
> >    known by the udev system and thus the iface entries are just
ignored.
> >    Regardless I think the wiki should demonstrate how to use
xen''s networking
> >    script create the bridges, or how to create the bridges manually
(in
> >    /etc/network/interface or other method(s)) while comment-out
xen''s
> >    networking script on xend-config.sxp like Fajar suggested.
> >
> 
> Creating the bridges using distro network scripts is obviously distro
specific task.
> I can''t remember how to do that in debian /etc/network/interfaces.
> 
> In rhel/centos/fedora I do them like this:
> 
> /etc/sysconfig/network-scripts/ifcfg-brvlanXY
> DEVICE=brvlanXY
> BOOTPROTO=none
> ONBOOT=yes
> TYPE=Bridge
> 
> and then it''s just a matter of ''ifup brvlanXY''.
> 
> In the /etc/xen/<guest> configuration file remember 
> to specify "bridge=brvlanXY" for the vif.
> 
> Someone feel free to edit the wiki :)
> 
> -- Pasi
On Tue, March 9th - Guy Roussin wrote:

(debian lenny)
eth0 => admin
eth1 => 3 vlans/bridges
 
# The loopback network interface
auto lo
iface lo inet loopback
 
# The primary network interface
 
auto eth0
iface eth0 inet static
 address 192.168.6.108
 network 192.168.6.0
 netmask 255.255.255.0
 broadcast 192.168.6.255
 gateway 192.168.6.101
 
auto eth1.1
iface  eth1.1 inet manual
auto br01
iface br01 inet manual
 network 172.16.0.0
 netmask 255.255.0.0
 broadcast 172.16.255.255
 bridge-ports eth1.1
 
auto eth1.7
iface eth1.7 inet manual
auto br07
iface br07 inet manual
 network 192.168.7.0
 netmask 255.255.255.0
 broadcast 192.168.7.255
 bridge-ports eth1.7
 
# The primary network interface
auto eth1.10
iface eth1.10 inet manual
auto br10
iface br10 inet manual
 network x.x.x.128
 netmask 255.255.255.128
 broadcast x.x.x.127
 bridge-ports eth1.10
 
-- 
Guy 
This configuration works as apposed to the 1st method for vlans on the wiki!
Thanks.

> 
> >    > --
> >    > Fajar
> >    >
> >    > _______________________________________________
> >    > Xen-users mailing list
> >    > Xen-users@lists.xensource.com
> >    > http://lists.xensource.com/xen-users
> > 
> >   
--------------------------------------------------------------------------
> > 
> >    Stay in touch. [1]Get Messenger on your phone now.
> > 
> > References
> > 
> >    Visible links
> >    1. http://go.microsoft.com/?linkid=9712959
> 
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@lists.xensource.com
> > http://lists.xensource.com/xen-users
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users 		 	   		  
_________________________________________________________________
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Xen users - Mar 2010 - xend-config.sxp setting question & vlans

[Xen-users] xend-config.sxp setting question & vlans

Re: [Xen-users] xend-config.sxp setting question & vlans

RE: [Xen-users] xend-config.sxp setting question & vlans

Re: [Xen-users] xend-config.sxp setting question & vlans

Re: [Xen-users] xend-config.sxp setting question & vlans

RE: [Xen-users] xend-config.sxp setting question & vlans