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Configuring Advanced Features
GVRP
Configuring Advanced
Features
Per-Port Options for Dynamic VLAN Advertising and
Joining
Initiating Advertisements. As described in the preceding section, to
enable dynamic joins, GVRP must be enabled and a port must be configured
to Learn (the default). However, to send advertisements in your network, one
or more Tagged or Untagged static VLANs must be configured on one or more
switches (with GVRP enabled), depending on your topology.
Enabling a Static VLAN for Dynamic Joins. You can configure a port to
dynamically join a static VLAN (that shares the same VID) if that port subse-
quently receives an advertisement for the static VLAN. (This is done by using
the Auto and Learn options described in table 9-9, below.
Parameters for Controlling VLAN Propagation Behavior. On an indi-
vidual port, you can configure an existing static VLAN to actively or passively
participate in dynamic VLAN propagation or to ignore dynamic VLAN (GVRP)
operation. These options are controlled by the GVRP “Unknown VLAN” and
the static VLAN configuration parameters, as described in the following table:
Table 9-9. Controlling VLAN Behavior on Ports with Static VLANs
Per-Port “Unknown VLAN”
(GVRP) Configuration
Per-Port Static VLAN Options
1
Tagged or Untagged
2
Auto
2
Forbid
2
Learn
(the Default)
Generate advertisements.
Forward advertisements for other
VLANs.
Receive advertisements and
dynamically join any advertised
VLAN.
Receive advertisements and
dynamically join any
advertised VLAN that has the
same VID as the static VLAN.
Do not allow the
port to become a
member of this
VLAN.
Block Generate advertisements.
Forward advertisements received
from other ports for other VLANs.
Do not dynamically join any
advertised VLAN.
Receive advertisements and
dynamically join any
advertised VLAN that has the
same VID.
Do not allow the
VLAN on this port.
Disable Ignore GVRP and drop all GVRP
advertisements.
Ignore GVRP and drop all GVRP
advertisements.
Do not allow the
VLAN on this port.
1
Each port of an SMC6624M switch must be a Tagged or Untagged member of at least one VLAN. Thus, any port configured
for GVRP to Learn or Block will generate and forward advertisements for the static VLAN(s) for which it has been
configured as Tagged or Untagged . By default, all ports are Untagged members of the default VLAN (VID = 1). See the
“Note” on page page 9-75.
2
To configure tagging, Auto, or Forbid, see “Configuring Static VLAN Name and Per-Port Settings” on page 9-65 (for the
CLI) or “Adding or Changing a VLAN Port Assignment” on page 9-58 (for the menu).