GE MULTILINK ML2400 User Manual

Page 191

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CHAPTER 11: VLAN REGISTRATION OVER GARP

VLAN REGISTRATION OVER GARP

MULTILINK ML2400 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL

11–5

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
• Reboot the switch

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