You'll need to confirm the driver version and LACP/bonding status under OS

Commands:

# service network restart

# ifconfig

# cat /proc/net/bonding/bond1

# lsmod | grep -ibond


Note that when implementing 802.3ad teams on Cisco switch ports in trunking mode, set the native/untagged VLAN for these ports to ID 1. Otherwise, you may experience traffic loss or lack of failover between aggregators. See your Cisco documentation for information about setting the native VLAN ID.