I was looking for more informations about QoS traffic marks, in particular about EF mark, trying to prioritize voip traffic …and i’ve found this doc very clear and “efficient” in explaining QoS tecniques.
This How To Note describes also how to deploy a QoS solution across an entire network.
I suggest reading it all !
http://www.alliedtelesyn.com/media/datasheets/howto/config_qos_standard_schemes.pdf
PS: EF means Expedited Forwarding. This traffic is given highest priority. Packets being given this treatment are prioritized ahead of all other types of data.
