The VLAN Trunking Protocol (VTP) allows switches across a network to maintain consistency. VLANs can be managed, added, renamed and deleted using VTP. VTP was created by Cisco.
Howard Zinn 1922-2010, RIP.
Howard Zinn was most importantly anti-war. Author of the important A People’s History of the United States.
Long interview http://www.youtube.com/watch?v=IMt7cFFKPeM
Shorter segment from The Real News channel http://www.youtube.com/watch?v=mebqz79O6AA