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Bond and Bridge problem


Recently I want to extend my existing bond to be also a bridge to use qemu-kvm. As seen in examples on net this is my `interfaces` file content:
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual
#	bond-master bond0

auto eth1
iface eth1 inet manual
#	bond-master bond0

auto bond0
iface bond0 inet manual
	# load balancing and fault tolerance
	bond-slaves eth0 eth1
#	slaves none
	bond-mode 802.3ad
	bond-miimon 100
	bond-downdelay 200
	bond-updelay 200
	bond-lacp-rate 4

auto br0
iface br0 inet static
	# jumbo frame support
	mtu 9000
	vlan-raw-device bond0
	bridge_ports bond0
	bridge_stp off
	bridge_fd 0
	bridge_maxage 0
	bridge_ageing 0
	bridge_maxwait 0

Last 5 options are there to try to eliminate:
	br0: received packet on bond0 with own address as source address
The problem is when I do `service networking restart` I get this message:
	RTNETLINK answers: invalid argument
	Failed to bring up br0

Also in route table dissapears default route to the gateway. Another error is about bridge_maxage:
	set max age failed: Numerical result out of range

To bring up br0 interface I run this commands:

service networking stop
ifconfig br0 down
ifconfig bond0 down
brctl delbr br0
service networking start
route add default gateway

There is a problem with bridging up br0 and I can't dig where is it. I think it breaks at:
	RTNETLINK answers: invalid argument
which is shown after
	Waiting for br0 to get ready (MAXWAIT is 2 seconds).

What means that error and why I get it?

Thank you.

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