Hello    Yeah in theory if I am not wrong, the default class should be able to use the 70% (100%-Voice Class) of the bandwidth if there is not traffic in the rest of the classes. Not sure why it is dropping if the utilization of the interface is so low      #show policy-map out-queue Policy Map out-queue Class Voice priority level 1 police cir percent 30 conform-action transmit exceed-action drop Class Protocols bandwidth 5 (%) Class Data bandwidth 25 (%) Class stream bandwidth 10 (%) Class lesspriority bandwidth 5 (%) Class class-default bandwidth 25 (%) #show policy-map interface TenGigabitEthernet1/0/2 | i drops|band (total drops) 0 (total drops) 0 bandwidth 5% (50000 kbps) (total drops) 0 bandwidth 25% (250000 kbps) (total drops) 0 bandwidth 10% (100000 kbps) (total drops) 8504 bandwidth 5% (50000 kbps) (total drops) 4215209812 bandwidth 25% (250000 kbps)   #show inter TenGigabitEthernet1/0/2 TenGigabitEthernet1/0/2 is up, line protocol is up (connected) Hardware is Ten Gigabit Ethernet, address is X MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive not set Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP input flow-control is on, output flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters never Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 4215209812 Queueing strategy: Class-based queueing Output queue: 0/40 (size/max) 30 second input rate 7422000 bits/sec, 1187 packets/sec 30 second output rate 5440000 bits/sec, 1210 packets/sec 13984292237 packets input, 16790176837929 bytes, 0 no buffer Received 33701231 broadcasts (21282386 multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 21282386 multicast, 0 pause input 0 input packets with dribble condition detected 9274003733 packets output, 4347665568329 bytes, 0 underruns 0 output errors, 0 collisions, 2 interface resets 245674 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out ... View more

Hello Georg   But with this configuration I will have just one Queue and there will not be prioritizing of the Voice, Video traffic, right?    Regards  ... View more