as it turns out, they do support VPC, which is the first i had ever heard of VPC. so that does seem to be the best way.
thanks! On Mar 8, 2013, at 3:16 PM, Brian J. Atkisson wrote: > 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/ >> > ----------------------- Andrew Hume 623-551-2845 (VO and best) 973-236-2014 (NJ) and...@research.att.com
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