checking that qos is working on a switch

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Apr 23rd, 2009
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Hi all, if I configure my voip phone with mls qos trust qos, how can I check the switch is actually prioritizing them, is there counters of some sort I can check ?

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Joseph W. Doherty Thu, 04/23/2009 - 15:50
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"is there counters of some sort I can check ?"


Depends on the platform and IOS.


"how can I check the switch is actually prioritizing them"


Oversubscribe a port with non-priorized traffic, if VoIP behavior barely changes, QoS is working. (Or trust the vendor's switch works as documented.)

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