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3-10
GVRP
Per-Port Options for Dynamic VLAN Advertising and Joining
Table 3-2. Controlling VLAN Behavior on Ports with Static VLANs
Per-Port
“Unknown
VLAN”
(GVRP)
Configuration
Static VLAN Options—Per VLAN Specified on Each Port
1
Port Activity:
Tagged or Untagged (Per VLAN)
2
Port Activity:
Auto
2
(Per VLAN)
Port Activity: Forbid (Per VLAN)
2
Learn
(the Default)
The port:
• Belongs to specified VLAN.
• Advertises specified VLAN.
• Can become a member of
dynamic VLANs for which it
receives advertisements.
• Advertises dynamic VLANs
that have at least one other
port (on the same switch) as a
member.
The port:
• Will become a member of
specified VLAN if it receives
advertisements for specified
VLAN from another device.
• Will advertise specified VLAN.
• Can become a member of
other, dynamic VLANs for
which it receives
advertisements.
• Will advertise a dynamic VLAN
that has at least one other port
(on the same switch) as a
member.
The port:
1. Will not become a member of
the specified VLAN.
2. Will not advertise specified
VLAN.
3. Can become a member of
other dynamic VLANs for
which it receives
advertisements.
4. Will advertise a dynamic VLAN
that has at least one other port
on the same switch as a
member.
Block The port:
• Belongs to the specified VLAN.
• Advertises this VLAN.
• Will not become a member of
new dynamic VLANs for which
it receives advertisements.
• Will advertise dynamic VLANs
that have at least one other
port as a member.
The port:
• Will become a member of
specified VLAN if it receives
advertisements for this VLAN.
• Will advertise this VLAN.
• Will not become a member of
new dynamic VLANs for which
it receives advertisements.
• Will advertise dynamic VLANs
that have at least one other
port (on the same switch) as a
member.
The port:
• Will not become a member of
the specified VLAN.
• Will not advertise this VLAN.
• Will not become a member of
dynamic VLANs for which it
receives advertisements.
• Will advertise dynamic VLANs
that have at least one other
port (on the same switch) as a
member.
Disable The port:
• Is a member of the specified
VLAN.
• Will ignore GVRP PDUs.
• Will not join any advertised
VLANs.
• Will not advertise VLANs.
The port:
• Will not become a member of
the specified VLAN.
• Will ignore GVRP PDUs.
• Will not join any dynamic
VLANs.
• Will not advertise VLANs.
The port:
• Will not become a member of
this VLAN.
• Will ignore GVRP PDUs.
• Will not join any dynamic
VLANs.
• Will not advertise VLANs.
1
Each port of the 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 static VLAN(s) configured on the switch and also for
dynamic VLANs the switch learns on other ports.
2
To configure tagging, Auto, or Forbid, see “Configuring Static VLAN Per-Port Settings” on page 2-37 (for the CLI) or
“Adding or Changing a VLAN Port Assignment” on page 2-25 (for the menu).