Hi, I'm trying to setup a bridge with a bonded device (2 links, balance-rr). The problem is that after attaching the bonded device to the bridge the network throughput drops down from 110MB to 100KB. This seems to be due to the MAC address of internal devices of the bridge being seen on the external ports, where the bonded device exists (see also the URLs below). An arp packet from some device on the bridge gets out on one slave and returns on the other, so the bridge suddenly moves the mac address to the wrong port. It looks like the bridge is moving the mac address now back an forth resulting in packet losses of 50-99.9% depending on the network utilization. For kernel 2.6.16 there was a commit that supposedly fixed this for active/passive mode bonding by ignoring incoing packets on the standby link. http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f903c708fcc2b579ebf16542bf6109bad593a1d But I do want to have balance-rr and even for active/passive more people report that this still isn't working. Is this a known problem? What kind of solutions exist? Ideally I would like to add an immutable static entry to the forwarding mac database. This is for a xen setup, and I've found a couple more issue with that on xen and openvz lists: http://lists.xensource.com/archives/html/xen-devel/2006-07/msg00613.html http://forums.xensource.com/thread.jspa?messageID=1839 http://openvz.org/pipermail/users/2006-November/000420.html Thanks! -- Axel.Thimm at ATrpms.net
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