D-Link xStack DGS-3426 User Manual page 150

xStack DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
is, to add or subtract ports from the group, at least one of the participating devices must designate
LACP ports as active. Both devices must support LACP.
Passive - LACP ports that are designated as passive cannot initially send LACP control frames. In
order to allow the linked port group to negotiate adjustments and make changes dynamically, one
end of the connection must have "active" LACP ports (see above).
After setting the previous parameters, click Apply to allow your changes to be implemented. The LACP Port Table shows which
ports are active and/or passive.
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