> SORRY typo; > >> options bond0 mode=5 miimon=100 > > is really > > options bond0 mode=4 miimon=100 > Confirm your switch supports LACP and those ports are configured on the switch for the aggregation. Check dmesg and the bonding status in /sys/class/net/$BOND/bonding to make sure that the lowest layer is good before progressing up the layers to IP/TCP/Application.