Re: [Xen-users] Re: debian wheezy interface bonding (dom0) / xen 4.1.2*

[Mark Schneider <ms@xxxxxxxxxxxxxxxxxxxxxx>]

Am 28.08.2011 12:18, schrieb Pasi Kärkkäinen:
> On Sat, Aug 27, 2011 at 11:16:09PM +0200, Mark Schneider wrote:
>    
> > Hello Pasi,
> >
> > Thank you for your hints due to my questions about interface bonding and
> > xen HVMs.
> > I have commented out the network-script line in /etc/xen/xend-config.sxp
> > and tested a bit around (s. below):
> > ### (network-script network-bridge)
> > ### (network-script 'network-bridge netdev=bond0 antispoof=yes')
> >
> > I have tried to use "bridge_ports bond0" and activated config for bond0
> > but it didn't worked as I expected. *Would you expect that such
> > "bond0-config" also should work?*
> >
> >      
> You should do one step at a time.
>
> First get the bond0 working without any Xen stuff.
> When bond0 works from dom0, then add bond0 to the bridge.
>    
Bond0 works already (without xen)


> > Maybe you would like to put some parts of my config into your wiki
> > xen-networking pages.
> >
> >
> > auto xenbr0
> > iface xenbr0 inet static
> >      address 192.168.1.150
> >      network 192.168.1.0
> >      broadcast 192.168.1.255
> >      netmask 255.255.255.0
> >      gateway 192.168.1.1
> >      bridge_ports eth0 eth2
> >      #bridge_ports bond0
> >      
> This looks dangerous. Having both eth0 and eth2 in the same
> bridge could cause a loop in the network!
>    
I use Extreme switch cluster with sharing group for eth0 and eth2 (VLAN 
LAN1 ports 1:9 and 2:9) so there is no danger to get any loops as they 
act only with one MAC-address (s. below). The second entry is another 
VLAN (ICON) with ports 1:19 and 2.19.
Slot-1 Stack.1 # show fdb
Mac                     Vlan       Age  Flags       Port / Virtual Port List
-----------------------------------------------------------------------------
b4:99:ba:c1:27:36       LAN1(0010) 0034 d m          1:9
b4:99:ba:c1:27:38       ICON(0070) 0031 d m          1:19

The question is if e.g. setting with "bridge_ports bond1" should work 
for xen (like below)?
# ---
auto bond1
iface bond1 inet static
    slaves eth1 eth3
    bond-mode active-backup
    #bond-mode 802.3ad
    bond-miimon 100
    bond-downdelay 200
    bond-updelay 200

auto xenbr1
iface xenbr1 inet static
    address 10.0.1.150
    network 10.0.1.0
    broadcast 10.0.1.255
    netmask 255.255.255.0
    gateway 10.0.1.1
    #bridge_ports eth1 eth3
    bridge_ports bond1
# ---

Thank you / regards, Mark

> -- Pasi
>
>
>    
> > #auto bond1
> > #iface bond1 inet static
> > #    address 10.0.1.150
> > #    netmask 255.255.255.0
> > #    network 10.0.1.0
> > #    broadcast 10.0.1.255
> > #    gateway 10.0.1.1
> > #    slaves eth1 eth3
> > #    bond-mode active-backup
> > #    #bond-mode 802.3ad
> > #    bond-miimon 100
> > #    bond-downdelay 200
> > #    bond-updelay 200
> >
> > auto xenbr1
> > iface xenbr1 inet static
> >      address 10.0.1.150
> >      network 10.0.1.0
> >      broadcast 10.0.1.255
> >      netmask 255.255.255.0
> >      gateway 10.0.1.1
> >      bridge_ports eth1 eth3
> >      #bridge_ports bond1
> >
> >
> > #auto xenbr0
> > #iface xenbr0 inet static
> > #    bridge_ports eth0 eth2
> > #    address 192.168.1.150
> > #    broadcast 192.168.1.255
> > #    netmask 255.255.255.0
> > #    gateway 192.168.1.1
> >
> > #auto xenbr1
> > #iface xenbr1 inet static
> > #    bridge_ports eth1
> > #    address 192.168.1.151
> > #    broadcast 192.168.1.255
> > #    netmask 255.255.255.0
> > #    gateway 192.168.1.1
> > #
> > #auto xenbr2
> > #iface xenbr2 inet static
> > #    bridge_ports eth2
> > #    address 10.0.1.152
> > #    broadcast 10.0.1.255
> > #    netmask 255.255.255.0
> > #    gateway 10.0.1.1
> > #
> > #auto xenbr3
> > #iface xenbr3 inet static
> > #    bridge_ports eth3
> > #    address 10.0.1.153
> > #    broadcast 10.0.1.255
> > #    netmask 255.255.255.0
> > #    gateway 10.0.1.1
> >
> > # ---
> >
> > root@xen411dom0:/ftp/HVM# brctl show
> > bridge name     bridge id               STP enabled     interfaces
> > xenbr0          8000.b499bac12736       no              eth0
> >                                                          eth2
> >                                                          vif4.0
> >                                                          vif5.0
> > xenbr1          8000.b499bac12738       no              eth1
> >                                                          eth3
> >                                                          vif5.1
> >
> > root@xen411dom0:/ftp/HVM# xm list
> > Name                                        ID   Mem VCPUs      State
> > Time(s)
> > Domain-0                                     0  1536     2     r-----
> > 527.2
> > squeezehvm.born2b3.net                       4  8192     4     -b----
> > 14.9
> > wheezyhvm.born2b3.net                        5  8192     8     -b----
> > 23.3
> >
> >
> > Best regards,
> > Mark
> >
> > --
> > ms@xxxxxxxxxxxxxxxxxxxxxx
> >
> >      
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>    
--
ms@xxxxxxxxxxxxxxxxxxxxxx



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