I have a mix of IP Phone systems and slowly migrating to Cisco every where. If I have a system where I can change the DSCP marking to 46 can I just configure the switches as though it was all Cisco phones attached? Trying to avoid having to reconfigure once the site has been migrated to Cisco
I have a mix of switch ports configures as
mls qos trust DSCP
and others as
mls qos trust device cisco-phone
mls qos trust cos
If I configure all the switch port with mls qos trust device cisco-phone and mark teh pasckets with dscp 46 will they still be prioritized even though the phones are not Cisco?
The command "mls qos trust device cisco-phone" sets up a conditional trust i.e. trusting the markings where this condition is met - that the device is a Cisco Phone. CDP will be looking for and expecting a Cisco phone. If condition is met markings are trusted cos or dscp (depending on second command) if not then markings will be stripped to 0. Since you have non-cisco phones, you will be not be meeting the condition and markings will be stripped.
In your case, as you have non-cisco phones standardize all the switch configs to trust dscp or cos by the command "mls qos tust dscp" (or cos).
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