hi Switching Gurus,
My setup is as follows,
access switch --> distrribution switch--> core switch --> router.
I want to achieve end-end QoS for VoIP and on the Access switch we are doing "trust DSCP".
On the trunk interfaces am I supposed to do "trust CoS" or the CoS to DSCP mapping will automatically priotize CoS 6 and 3 traffic on the trunk ports?