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



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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