[Xen-bugs] [Bug 753] bonding + vlans + bridging

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=753





------- Comment #12 from kfh.xen@xxxxxx  2006-11-28 05:29 -------
Hi,

I believe your problem is as follows,
veth0 sends arp-request for ex. IP 1.2.3.4 to mac broadcast.
vlanXXX-br forwards the frame and marks "veth0 mac" as belonging to vif0.0
port.
bond0 sends the frame through ex. eth0.
The switch connected to eth0 floods all ports except the incoming port (eth0),
and marks "veth0 mac" as belonging to eth0 port.
The flood includes the eth1 port.
The bridge vlanXXX-br forwards the frame and marks "veth0 mac" as belonging to
vlanXXX port.

The destination (1.2.3.4) sends arp reply to "veth0 mac".
The switch connected to eth0/eth1, sends the reply to the eth0 port.
The bridge vlanXXX-br blocks the frame as it believes the destination belongs
to vlanXXX port.

If you use a kernel <= 2.6.16.y you must apply the following patch:
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=8f903c708fcc2b579ebf16542bf6109bad593a1d;hp=ebe19a4ed78d4a11a7e01cdeda25f91b7f2fcb5a

If your NIC have vlan HW acceleration and the kernel <= 2.6.17-rc5, you must
also apply the following patch:
http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=7ea49ed73c8d0d0bdf7c11fc18c61572d2d22176;hp=774bd8613d0188cda72408f8ffce258d73953cad


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