Drag each item on the left to match the correct standard organization on the right.

Explanation/Reference:
802.1ad and 802.1ah —- IEEE
VPWS and VPLS —- IETF
E-Line , E-LAN and E-Tree — MEF
http://www.cisco.com/application/pdf/en/us/guest/tech/tk891/c1482/cdccont_0900aecd80162184.pdf