With regards to what switch support is required for GNU\linux bonding its worth having a read through the docs http://www.kernel.org/doc/Documentation/networking/bonding.txt to understand the available modes in the bonding driver. As far as I understand it only mode=4 requires switch side participation in the bonding. All other modes are implemented on the host side. Cheers, Sam -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster