DSCP and COS trust boundary

[Horacio Gutierrez]

Hello,

What exactly is meant with trust boundary regarding dscp or cos.  for example if your have a computer connected to a ip phone connected to access switch which is connected to a core switch how does dscp trust boundary work is in this scenario?

Thanks,

[Jaime Valencia]

Page 46

http://www.cisco.com/c/dam/en/us/td/docs/security/csa/csa50/white_papers/Implementing_Trusted_Endpoint_QoS.pdf

You can get a lot of info on QoS by just searching cisco.com