HP procurve series 4100gl Management And Configuration Manual page 248

Port-Based Virtual LANs (VLANs) and GVRP
Port-Based Virtual LANs (Static VLANs)
11-8
Example of Per-Port
VLAN Configuration
with GVRP Disabled
(the default)
Figure 11-5. Comparing Per-Port VLAN Options With and Without GVRP
Table 11-1. Per-Port VLAN Configuration Options
Parameter Effect on Port Participation in Designated VLAN
Tagged
Allows the port to join multiple VLANs.
Untagged
Allows VLAN connection to a device that is configured for an untagged
VLAN instead of a tagged VLAN. The switch allows no more than one
untagged VLAN assignment per port.
No No
: Appears when the switch is not GVRP-enabled; prevents the port from
- or - joining that VLAN.
Auto
Auto
: Appears when GVRP is enabled on the switch; allows the port to
dynamically join any advertised VLAN that has the same VID
Forbid
Prevents the port from joining the VLAN, regardless of whether GVRP is
enabled on the switch.
Enabling GVRP causes "No" to display as "Auto".
Example of Per-Port
VLAN Configuration
with GVRP Enabled