at8000s

http://www.slideshare.net/NetPlus/at8000-s-configurando-trunking

cisco Service Ready Architecture for Schools

http://www.cisco.com/en/US/docs/solutions/Enterprise/Education/SchoolsSRA_DG/SchoolsSRA_chap2.html

http://www.cisco.com/en/US/solutions/ns340/ns414/ns742/ns826/landing_srArchit_edu.html