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sohaib2457
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07-12-2023
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Re: QinQ on 3750 and QoS
12-14-2010
By default with no QoS enabled on 3750, all marking whether CoS or DSCP remain unchanged. In caseyou want to enable QoS and want to preserve customer's CoS markings, make sure all your trunk ports have mls qos trust cos command.
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