Only the following switch models support VLL:
S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731S-H, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730S-H, and S6730-H
Command support and parameter support on your switches may differ from those described in this section. For details, see the specific commands.