Try this:
system-view
The system view is displayed.
Run interface eth-trunk trunk-id
The Eth-Trunk interface view is displayed.
Run load-balance { dst-ip | dst-mac | src-ip | src-mac | src-dst-ip | src-dst-mac }
A load balancing mode of the Eth-Trunk is set.
By default, the load balancing mode is src-dst-ip.
Other load balancing modes are as follows:
dst-ip: based on destination IP addresses
dst-mac: based on destination MAC addresses
src-ip: based on source IP addresses
src-mac: based on source MAC addresses
src-dst-ip: based on the Exclusive-Or result of source and destination IP addresses
src-dst-mac: based on the Exclusive-Or result of source and destination MAC addresses