A method, an apparatus, and a computer program product for wireless communication are provided. The system also includes a child table for listing names of data elements that is derived from the parent table and that is constrained such that the child table cannot grow beyond a second predetermined size. An image of a portion of the sample can also be generated based on the information. In both embodiments, the Provider Edge Bridge is configured to provide the C-tagged service interface without utilizing a S-VLAN mapping component.