On Thu, Mar 27, 2014 at 8:14 AM, Lars Hecking <lhecking at users.sourceforge.net> wrote: > Nico Kadel-Garcia writes: >> I published notes some time back about pair bonding for CentOS, >> applicable to Scientific Linux as well, t >> https://wikis.uit.tufts.edu/confluence/display/TUSKpub/Configure+Pair+Bonding,+VLANs,+and+Bridges+for+KVM+Hypervisor >> >> Show us your /etc/sysconfig/network-scripts/ifcfg-br0, if you would. I >> particularly want to see your "BONDING_OPTS". > > That's in ifcfg-bond0. I use mode=0 (balance-rr), wheras your docs show > mode=1 (active-backup). Balance-rr is *NOT* your friend. Many upstream switches will have serious problems with it. > Will change that and see what the next reboot brings. Please do.