Link aggregation is a technology that allows you to combine several physical channels into one logical channel, which increases the bandwidth and reliability of the channel.
I’ll give you an example of link aggregation setup on D-Link switches.
Creating an aggregated link group on the first switch:
create link_aggregation group_id 1 type lacp
config link_aggregation algorithm mac_destination
Appointment of group members on the first switch:
config link_aggregation group_id 1 master_port 1 ports 1-3,7 state enabled
config lacp ports 1-3,7 mode active
View LACP Status:
show link_aggregation
Creating an aggregated channel group on the second switch:
create link_aggregation group_id 1 type lacp
config link_aggregation algorithm mac_source
Appointment of group members on the second switch:
config link_aggregation group_id 1 master_port 1 ports 1-3,7 state enabled
config lacp ports 1-3,7 mode passive