You use the –p option of the dladm show-linkprop command to display link properties.
The following example shows how to display the link properties for vnic1 and vnic2.
# dladm show-linkprop -p maxbw,mtu vnic1 LINK PROPERTY PERM VALUE EFFECTIVE DEFAULT POSSIBLE vnic1 maxbw rw 100 100 -- -- vnic1 mtu rw 1500 1500 1500 1500
# dladm show-linkprop -p maxbw,mtu vnic2 LINK PROPERTY PERM VALUE EFFECTIVE DEFAULT POSSIBLE vnic2 maxbw rw 20 20 -- -- vnic2 mtu rw 1500 1500 1500 1500