I have one problem about QoS with router which configured as Service Provider recommended(int BVI). After I made QoS configuration and I applied it to s0/0/0 interface. Then I confirmed it's working or not by using command "show policy-map int s0/0/0" But result show that no packet goes to each classes. Then I tried to research to create new policy to apply on sub-interface. After that still same result(no packet goes to each classes). ========= Configuration ============= policy-map policy_qos class class_realtime priority 160 set dscp ef class class_sensitive bandwidth 520 set dscp af41 class class_important bandwidth 64 set dscp af31 class class_neccessary bandwidth 792 set dscp af21 class class-default fair-queue random-detect policy-map policy_subint_qos class class-default shape average percent 100 bandwidth 2048 service-policy policy_nqos ! ! interface FastEthernet0/0 description === LAN === ip address 10.192.52.252 255.255.255.0 ip helper-address 10.192.32.13 ip accounting output-packets ip route-cache flow duplex auto speed auto ! interface Serial0/0/0 bandwidth 2048 no ip address ip accounting output-packets encapsulation frame-relay IETF frame-relay lmi-type ansi service-policy output policy_qos ! interface Serial0/0/0.1 point-to-point frame-relay interface-dlci 16 bridge-group 1 ! interface BVI1 description === WAN === bandwidth 2048 ip address 10.192.35.66 255.255.255.252 ip route-cache flow ! ! control-plane ! bridge 1 protocol ieee bridge 1 route ip ! ========== Checking status ================== Router#sh policy-map int s0/0/0 Serial0/0/0 Service-policy output: policy_nantawan_qos Class-map: class_realtime (match-any) 0 packets, 0 bytes <<==================No packets 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group name traffic_realtime 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Match: ip dscp ef (46) 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Queueing Strict Priority Output Queue: Conversation 264 Bandwidth 160 (kbps) Burst 4000 (Bytes) (pkts matched/bytes matched) 0/0 (total drops/bytes drops) 0/0 QoS Set dscp ef Packets marked 0 Class-map: class_sensitive (match-any) 0 packets, 0 bytes <<==================No packets 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group name traffic_sensitive 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Match: ip dscp af41 (34) 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Queueing Output Queue: Conversation 265 Bandwidth 520 (kbps)Max Threshold 64 (packets) (pkts matched/bytes matched) 0/0 (depth/total drops/no-buffer drops) 0/0/0 QoS Set dscp af41 Packets marked 0 Class-map: class_important (match-any) 0 packets, 0 bytes <<==================No packets 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group name traffic_important 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Match: ip dscp af31 (26) 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Queueing Output Queue: Conversation 266 Bandwidth 64 (kbps)Max Threshold 64 (packets) (pkts matched/bytes matched) 0/0 (depth/total drops/no-buffer drops) 0/0/0 QoS Set dscp af31 Packets marked 0 Class-map: class_neccessary (match-any) 0 packets, 0 bytes <<==================No packets 5 minute offered rate 0 bps, drop rate 0 bps Match: access-group name traffic_neccessary 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Match: ip dscp af21 (18) 0 packets, 0 bytes <<==================No packets 5 minute rate 0 bps Queueing Output Queue: Conversation 267 Bandwidth 792 (kbps)Max Threshold 64 (packets) (pkts matched/bytes matched) 0/0 (depth/total drops/no-buffer drops) 0/0/0 QoS Set dscp af21 Packets marked 0 Class-map: class-default (match-any) 123 packets, 11395 bytes 5 minute offered rate 4000 bps, drop rate 0 bps Match: any Queueing Flow Based Fair Queueing Maximum Number of Hashed Queues 256 (total queued/total drops/no-buffer drops) 0/0/0 exponential weight: 9 class Transmitted Random drop Tail drop Minimum Maximum Mark pkts/bytes pkts/bytes pkts/bytes thresh thresh prob 0 123/11395 0/0 0/0 20 40 1/10 1 0/0 0/0 0/0 22 40 1/10 2 0/0 0/0 0/0 24 40 1/10 3 0/0 0/0 0/0 26 40 1/10 4 0/0 0/0 0/0 28 40 1/10 5 0/0 0/0 0/0 30 40 1/10 6 0/0 0/0 0/0 32 40 1/10 7 0/0 0/0 0/0 34 40 1/10 rsvp 0/0 0/0 0/0 36 40 1/10