HP ProCurve 4108gl Bundle, Management And Configuration Manual

Page: 336 / 483

14-30
Port-Based Virtual LANs (VLANs) and GVRP
GVRP
Po
rt
-Ba
sed V
ir
tual
LANs
(VLAN
s) a
n
d
G
V
RP
GVRP
GVRP—GARP VLAN Registration Protocol—is an application of the Generic
Attribute Registration Protocol—GARP. GVRP is defined in the IEEE 802.1Q
standard, and GARP is defined in the IEEE 802.1D-1998 standard.
N o t e
To understand and use GVRP you must have a working knowledge of 802.1Q
VLAN tagging. (See “Port-Based Virtual LANs (Static VLANs)” on page 14-4.)
GVRP uses “GVRP Bridge Protocol Data Units” (“GVRP BPDUs”) to “adver-
tise” static VLANs. In this manual, a GVRP BPDU is termed an
advertisement .
GVRP enables the Switch 4108GL to dynamically create 802.1Q-compliant
VLANs on links with other devices running GVRP. This enables the switch to
automatically create VLAN links between GVRP-aware devices. (A GVRP link
can include intermediate devices that are not GVRP-aware.) This operation
reduces the chances for errors in VLAN configuration by automatically pro-
viding VLAN ID (VID) consistency across the network. That is, you can use
GVRP to propagate VLANs to other GVRP-aware devices instead of manually
having to set up VLANs across your network. After the switch creates a
dynamic VLAN, you can optionally use the CLI
static < vlan-id > command to
convert it to a static VLAN or allow it to continue as a dynamic VLAN for as
long as needed. You can also use GVRP to dynamically enable port member-
ship in static VLANs configured on a switch.
Feature Default Menu CLI Web
view GVRP configuration n/a page 14-37 page 14-39 page 14-42
list static and dynamic VLANs
on a GVRP-enabled switch n/a — page 14-41 page 14-42
enable or disable GVRP on the
switch disabled page 14-37 page 14-40 page 14-42
enable or disable GVRP on
individual ports enabled page 14-37 page 14-40 —
control how individual ports
will handle advertisements for
new VLANs Learn page 14-37 page 14-40 page 14-42
convert a dynamic VLAN to a
static VLAN n/a — page 14-42 —
configure static VLANs DEFAULT_VLAN
(VID = 1) page 14-11 page 14-16 page 14-42