38 CHAPTER 5: GVRP CONFIGURATION GUIDE
Precautions ■ The port trunk permit vlan all command is designed for GVRP only. To
prevent users of unauthorized VLANs from accessing restrictive resources from
a port, do not use the command when GVRP is disabled on the port.
■ Before enabling GVRP on a port, enable GVRP globally first.
■ Use GVRP only on trunk ports. You cannot change the link type of a trunk port
with GVRP enabled.