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CHAPTER 11: VLAN REGISTRATION OVER GARP OVERVIEW
MULTILINK ML1600 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 11–5
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The unknown VLAN parameters are configured on a per interface basis using the CLI. The
tagged, untagged, Auto, and Forbid options are configured in the VLAN context. Since
dynamic VLANs operate as tagged VLANs, and it is possible that a tagged port on one
device may not communicate with an untagged port on another device, GE Multilin
recommends that you use tagged VLANs for the static VLANs.
A dynamic VLAN continues to exist on a port for as long as the port continues to receive
advertisements of that VLAN from another device connected to that port or until you:
• Convert the VLAN to a static VLAN
• Reconfigure the port to Block or Disable
• Disable GVRP
Table 11–2: GVRP options
Per-port “unknown
VLAN” (GVRP)
configuration
Per-port static VLAN options
Tagged or untagged Auto Forbid
Learn 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 to 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
Example 11-1: Converting a dynamic VLAN to a static VLAN
ML1600#
gvrp
ML1600(gvrp)##
show-vlan
=================================================
VLAN ID | NAME | VLAN | STATUS
=================================================
1 | Default VLAN | Static | Active
2 | Blue | Static | Active
10 | dyn10 | Dynamic | Active
ML1600(gvrp)## static vlan=10
ML1600(gvrp)##
show-vlan
=================================================
VLAN ID | NAME | VLAN | STATUS
=================================================
1 | Default VLAN | Static | Active
2 | Blue | Static | Active
10 | dyn10 | Static | Active