https://community.hpe.com/t5/switches-hubs-and-modems/qos-passthrough-mode/m-p/4766020#M25575 Hi,<BR />We have several 2824 &amp; 2848 switches.<BR />The command qos-passthrough-mode was enabled several years ago because of performance problems.<BR />Now we need qos due to a voip installation.<BR /><BR />Can we do qos even though we are running qos-passthrough-mode?<BR /><BR />or do i have to remove qos-passthrough-mode and live with slow transfers but with qos?<BR /><BR />hp states the follwing which seems really bad.<BR /><BR />"NOTE: As stated earlier, use of this QoS-Passthrough-Mode feature generally assumes that QoS tagged packets are not being sent through the 2800 Switch. The receipt of priority 6 or 7 packets may in fact suffer packet drops depending on the traffic load of non-priority 6 or 7 packets." Wed, 16 Mar 2011 11:59:00 GMT Marcus J 2011-03-16T11:59:00Z https://community.hpe.com/t5/switches-hubs-and-modems/qos-passthrough-mode/m-p/4766020#M25575 Hi,<BR />We have several 2824 &amp; 2848 switches.<BR />The command qos-passthrough-mode was enabled several years ago because of performance problems.<BR />Now we need qos due to a voip installation.<BR /><BR />Can we do qos even though we are running qos-passthrough-mode?<BR /><BR />or do i have to remove qos-passthrough-mode and live with slow transfers but with qos?<BR /><BR />hp states the follwing which seems really bad.<BR /><BR />"NOTE: As stated earlier, use of this QoS-Passthrough-Mode feature generally assumes that QoS tagged packets are not being sent through the 2800 Switch. The receipt of priority 6 or 7 packets may in fact suffer packet drops depending on the traffic load of non-priority 6 or 7 packets." Wed, 16 Mar 2011 11:59:00 GMT https://community.hpe.com/t5/switches-hubs-and-modems/qos-passthrough-mode/m-p/4766020#M25575 Marcus J 2011-03-16T11:59:00Z