IronPort Systems 4108GL - Manual (Page 321)

14-15
Port-Based Virtual LANs (VLANs) and GVRP
Port-Based Virtual LANs (Static VLANs)
P
o
rt
-Ba
sed V
ir
tual
LANs
(VLANs)
a
n
d
G
V
RP
Figure 14-10. Example of VLAN Port Assignment Screen
2. To change a port’s VLAN assignment(s):
a. Press [E] (for Edit).
b. Use the arrow keys to select a VLAN assignment you want to change.
c. Press the Space bar to make your assignment selection ( No, Tagged,
Untagged, or Forbid).
N o t e For GVRP Operation: If you enable GVRP on the switch, “ No”
converts to “ Auto”, which allows the VLAN to dynamically join an
advertised VLAN that has the same VID. See “Per-Port Options for
Dynamic VLAN Advertising and Joining” on page 14-35.
Untagged VLANs: Only one untagged VLAN is allowed per port. Also,
there must be at least one VLAN assigned to each port. In the factory
default configuration, all ports are assigned to the default VLAN
(DEFAULT_VLAN).
For example, if you want ports A4 and A5 to belong to both
DEFAULT_VLAN and VLAN-22, and ports A6 and A7 to belong only to
VLAN-22, you would use the settings in figure page 14-16. (This example
assumes the default GVRP setting—disabled—and that you do not plan
to enable GVRP later.)
Default: In this example,
the “VLAN-22” has been
defined, but no ports
have yet been assigned
to it. (“No” means the
port is not assigned to
that VLAN.)
Using GVRP? If you plan
on using GVRP, any
ports you don’t want to
join should be changed
to “Forbid”.
A port can be assigned
to several VLANs, but
only one of those
assignments can be
“Untagged”.