On 03/08/2013 08:45 AM, Andrew Hume wrote: > does anyone have real experience with ethernet bond mode 6 (balanced-alb)? > > we have 5 source servers each connected to two switches (A and B). > each server operates their pair of 1Gbps connections as an > active/passive pair > (under Solaris). > > we have a sink server with 4 1Gbps connections, 2 to A and 2 to B. > we have configured these 4 ethernets as bonded mode 6. > > when testing this setup, we find that with all 5 source servers sending data > to teh sink server, all the traffic flows over one of the 4 channels > terminating at the sink. > we would have expected the traffic to be spread somewhat evenly over the > 4 channels.
Well, at best you would get traffic balanced between the two interfaces on switch A on the sink servers. Based on the info provided, the source servers will only send data out their active interface, which I assume is switch A. Granted I don't know your network design or even if the sink servers use the same A/B switches that the source do. See if you balance traffic on the 2 A sink interfaces after turning off the B interfaces. If not, you might have to use bonding mode 4 to each switch and do some type of layer 3 fail-over or a bridge device with STP enabled. Of course, if your switches support using a VPC, that would be the way to go and put all 4 interfaces in the same mode=4 device. Cheers, Brian > > is this a problem? have we misunderstood what mode 6 means? > or is this just because during testing we didn't generate more than 1Gbps > traffic into the sink server? > > andrew > > ----------------------- > Andrew Hume > 623-551-2845 (VO and best) > 973-236-2014 (NJ) > and...@research.att.com <mailto:and...@research.att.com> > > > > > > _______________________________________________ > Tech mailing list > Tech@lists.lopsa.org > https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ > _______________________________________________ Tech mailing list Tech@lists.lopsa.org https://lists.lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
