Would like to confim the following:
(1) will enabling qos using "mls qos" cause any network disruption?
(2) will disabling qos using "no mls qos" cause any network disruption? (in case we need to fallback)
My client is concerned about enabling/disabling qos may cause network disruption to existing traffic flow due to the re-allocation of buffer at the interface.
My thoughts is that if the link is not congested, no packets will be in the queue, hence enabling/disabling qos should not impact existing traffic flows.
Any comments/thoughts are welcome.