# Go back one pageGo to the next page#Go to this book's Index

Modifying and managing existing VLANs

The main dialog box for managing VLANs in Device Manager is the VLAN dialog box. To open the VLAN dialog box:

From the Device Manager main menu, choose VLAN > VLANs.
The VLAN dialog box opens. The VLAN dialog box displays all defined VLANs, their configurations, and their current status.


Note Note: After a VLAN is created, you cannot change the VLAN type. The VLAN must be deleted and a new VLAN of the chosen type created.

The following table describes the fields in the VLAN dialog box.


Field Description
Id
The VLAN ID for the VLAN (unlabeled farthest left column).
Name
The name of the VLAN.
Color
The color used, for visual purposes only, by VLAN Manager to associate a color with a VLAN. The assigned color does not affect the behavior of a frame, only the attributes assigned to the VLAN.
Type
Indicates the type of VLAN: byPort or byProtocolId.
StgId
The spanning tree group (STG) ID to which the VLAN belongs.
PortMembers
The ports that are members of the VLAN.
ActiveMembers
The ports that are members of the VLAN.
ProtocolId
The protocol for protocol-based VLANs. This value is taken from the Assigned Numbers RFC. For port-based VLANs, none is the displayed value.
UserDefined
When rcVlanProtocolId is set to usrDefined(15) in a protocol-based VLAN, this field represents the 16-bit user defined protocol identifier.
ConstraintType
Displays whether the specified VLAN is independent or shared.


Go back one pageGo to the next page##Go to this book's Index