Re: bonding + vlan + bridge duplicate packet problem

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On Thu, 2010-11-18 at 11:03 -0600, Dan White wrote:
> On 18/11/10 12:34 +0000, Alessandro Bono wrote:
> >Hi
> >
> >I have a problem stacking bonding + vlan + bridge, typically my servers
> >has two nic attached to two switch, one per nic, so I use bond in active-
> >passive configuration, on top of this I create vlans and a bridge for vlan
> >On ubuntu my network configuration are like this
> >
> >auto bond0
> >iface bond0 inet manual
> >        slaves eth0 eth1
> >        bond_mode active-backup
> >        bond_primary eth0
> >        bond_miimon 100
> >
> >
> >auto br18
> >iface br18 inet static
> >        address x.x.x.243
> >        netmask 255.255.255.0
> >        gateway x.x.x.254
> >        bridge_ports bond0.18
> >        bridge_fd 0
> >        bridge_maxwait 0
> >
> >
> >auto br23
> >iface br23 inet manual
> >        bridge_ports bond0.23
> >        bridge_fd 0
> >        bridge_maxwait 0
> >
> >and so on
> >
> >This machines are used as host for virtual machine, so vm are attached to
> >one or more of these bridge If either eth0 and eth1 are up there are lots
> >of this message in syslog
> >
> >bond0.18: received packet with own address as source address
> 
> Maybe you have a virtual machine that's sourcing frames with a duplicate
> MAC address? Does brctl showmacs <brX> look sensible?
> 

nothing interesting 


> Also, that could be a mismatch in your bond configuration between you and
> the switch, although I don't know of a particular scenario where that would
> happen. Maybe you're sending BDPU packets out towards the switch and you
> have STP enabled on it?
> 

stp is disabled on all bridge but one
now I disabled stp for all bridge and restart machine, so far problem
disappear but I have to restart server lots of time to be sure

thanks

-- 
Cordiali Saluti
Alessandro Bono

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