3Com Origin, For the CoreBuilder 3500 or CoreBuilder 9000, the origin, Port Vlan, Type Vlan

340CHAPTER 14: VIRTUAL LANS (VLANS)

Field	Description
Origin	For all Layer 2 systems or switching modules, the VLAN origin is
	always static, which indicates that the user created the VLAN.
	For the CoreBuilder® 3500 or CoreBuilder 9000, the origin
	indicates one of the following:
	■ static — The VLAN was created statically (user-configured
	by using the bridge vlan define command).
	■ router — The VLAN was created automatically by a outer port
	IP interface (of router origin). You create a router port IP
	interface using the ip interface define command with
	the interface type port. You cannot modify or remove a router
	port VLAN.
	■ GVRP — The VLAN was created dynamically from a GVRP
	update (GVRP). You must enable the GVRP state for the entire
	system as a bridge-wide parameter and for the participating
	bridge ports as a bridge-port parameter.
Ports	Index numbers of the bridge ports that belong to the VLAN, or the
	bridge port that belongs to the router port IP interface.
	On the CoreBuilder 9000, the list of ports includes the front-panel
	ports and the appropriate backplane ports. Example: On a 12-port
	Layer 3 module, the list of ports includes ports 1 – 12 and port 13,
	which is the module’s backplane port.
Type (VLAN	Either allOpen or allClosed. VLANs in allOpen mode share a
mode)	single address table for all configured VLANs; in allClosed mode,
	each VLAN has its own unique address table. Standard bridging
	rules apply based on the table addresses that are assigned to the
	specific VLAN. A router port IP interface requires that you put the
	system in allClosed mode.

VID

VLAN Aware Mode

(3500 and

9000 Layer 3)

Unique, user-defined integer (VLAN ID) that identifies this VLAN. It is used by management operations. You can assign or modify a VID that is associated with a static VLAN; you cannot modify the VID selected automatically after you define a router port IP interface, nor can you change the VID of the default VLAN. The default VLAN requires a VID of 1.

Whether the VLAN aware mode (tagging mode) is allPorts or taggedVlanPorts. The default for CoreBuilder 3500 Release

2.0or later is allPorts; allPorts is also the default as of CoreBuilder 9000 software Release 3.0. The value taggedVlanPorts is a compatibility mode for VLANs configured prior to CoreBuilder 3500 Release 2.0 and for VLANs configured on CoreBuilder 9000 Layer 3 modules prior to CoreBuilder 9000 Release 3.0.