So, I decided to go with mode 6 since my network admin says thats supported at my college. I have everything working perfectly however I still get an occasional packet drop which is not good. http://www.howtoforge.com/network_card_bonding_centos By reading the HOWTO and README.txt I am not sure if I am missing anything else. Has anyone else configured this before? TIA On Sat, Sep 6, 2008 at 2:22 PM, Filipe Brandenburger <filbranden at gmail.com> wrote: > On Sat, Sep 6, 2008 at 13:11, Mag Gam <magawake at gmail.com> wrote: >> Actually, would there be a big performance boost when using mode4? > > Not necessarily, since balance-rr already gives you load-balancing. > They actually implement it differently. balance-rr can spread packets > of the same TCP connection across the two links, so you may use your > links more, but with the side effect of having your packets delivered > out of order. In 802.3ad all packets of a single TCP connection will > use the same link, this means your links will not be as balanced as > what you get with balance-rr, but it will not require reordering on > the other side of the connection. Check section 12.1.1 in > /usr/share/doc/iputils-*/README.bonding . In any case, you should > evaluate what your needs are and tune for that. > >> Currently I am seeing 95% total throughput. > > If you have only a few clients doing huge transfers, 802.3ad will > probably not be as good as balance-rr for that. Again, you should tune > it for your needs. > >> Which isn't that bad. I am >> peaking at 238MB/sec (each gig/e connections) > > I believe you mean 238MB/sec on both interfaces, since 1Gbps = 125MB/s. > >> Also, mode0 does fault tolerance, meaning if a switch failure occurs >> we should still be good, but how would the packets then be >> transferred? I suppose rr would be disabled since it won't need to >> alternate, correct? > > Actually balance-rr is still there, it is only doing round-robin of > one interface only. Remember, you could have a bonding of 3, 4 or more > interfaces, in that case if you loose one you still have more than one > to balance traffic through. > > Filipe > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >