Linux Ethernet Bridging - May 2013 - [Bridge] bond-mode 4 bridge-utils 3.x kernel not fully working

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Hello everybody,

I also sent this email to bonding-devel at lists.sourceforge.net

I spent ours debugging and finding out what points to the problem.

I run kvm quests with bridged networking on a bonding lacp set-up,
with the 2.6 kernel this has been working fine for years. But with the
3.x kernel this doesn?t work any more.

Traffic comes out the KVM quests but doesn?t come in. If I disable
bonding everything just works again.

# working with 2.6 not working with 3.x
cat /etc/network/interfaces
auto lo
  iface lo inet loopback

auto bond0
  iface bond0 inet manual
  slaves eth0 eth1
  bond-mode 4
  bond-miimon 100
  pre-up /sbin/ifconfig bond0 mtu 9000

auto br0
  iface br0 inet dhcp
  bridge_fd 0
  bridge_stp on
  bridge_ports bond0

# working with 3.x but no bonding!!
cat /etc/network/interfaces
auto lo
  iface lo inet loopback

auto eth0
  iface eth0 inet manual
  mtu 900

auto br0
  iface br0 inet dhcp
  bridge_fd 0
  bridge_stp on
  bridge_ports eth0

# uname -a
Linux viktoriya 3.2.0-4-amd64 #1 SMP Debian 3.2.41-2+deb7u2 x86_64
GNU/Linux

bridge-utils version  1.5-6

I already checked iptabls, ebtables there are no running rules and the
bellow on zero or one doesn't make a difference either also disabling
bridge_stp off or bridge_maxwait 0 doesn't seem to help.

/bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-arptables
/bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-ip6tables
/bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-iptables

Any ideas?

Kind regards,

Jelle de Jong
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On Wed, 2013-05-29 at 01:10 +0200, Jelle de Jong wrote:
> Traffic comes out the KVM quests but doesn?t come in. If I disable
> bonding everything just works again.
> 
> auto bond0
>   iface bond0 inet manual
>   slaves eth0 eth1
>   bond-mode 4
>   bond-miimon 100
>   pre-up /sbin/ifconfig bond0 mtu 9000
> auto eth0
>   iface eth0 inet manual
>   mtu 900
Does this one really say mtu 900 instead of 9000? 
Is your eth1 up? 
Did you try non-kvm traffic over the bonding interface?
Is the switch in LACP mode?

Regards,

Wilco Baan Hofman

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On 29/05/13 01:10, Jelle de Jong wrote:
> I also sent this email to bonding-devel at lists.sourceforge.net
> 
> I spent ours debugging and finding out what points to the problem.
> 
> I run kvm quests with bridged networking on a bonding lacp set-up, 
> with the 2.6 kernel this has been working fine for years. But with
> the 3.x kernel this doesn?t work any more.
> 
> Traffic comes out the KVM quests but doesn?t come in. If I disable 
> bonding everything just works again.
> 
> # working with 2.6 not working with 3.x cat
> /etc/network/interfaces auto lo iface lo inet loopback
> 
> auto bond0 iface bond0 inet manual slaves eth0 eth1 bond-mode 4 
> bond-miimon 100 pre-up /sbin/ifconfig bond0 mtu 9000
> 
> auto br0 iface br0 inet dhcp bridge_fd 0 bridge_stp on bridge_ports
> bond0
> 
> # working with 3.x but no bonding!! cat /etc/network/interfaces 
> auto lo iface lo inet loopback
> 
> auto eth0 iface eth0 inet manual mtu 900
> 
> auto br0 iface br0 inet dhcp bridge_fd 0 bridge_stp on bridge_ports
> eth0
> 
> # uname -a Linux viktoriya 3.2.0-4-amd64 #1 SMP Debian
> 3.2.41-2+deb7u2 x86_64 GNU/Linux
> 
> bridge-utils version  1.5-6
> 
> I already checked iptabls, ebtables there are no running rules and
> the bellow on zero or one doesn't make a difference either also
> disabling bridge_stp off or bridge_maxwait 0 doesn't seem to help.
> 
> /bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-arptables 
> /bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-ip6tables 
> /bin/echo "0" > /proc/sys/net/bridge/bridge-nf-call-iptables
Anybody? I?m still unable to use bonding lacp & bridge & vlans with
kvm guest in a 3.x kernel (2.6 is working fine)

Kind regards,

Jelle de Jong
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