Mqprio
The following scenario shows how to configure a MQPRIO qdisc. MQPRIO is a hardware-offloaded multiqueue priority scheduling qdisc that requires external packet classification via traffic policies. This test verifies packet classification across multiple traffic classes including the default class.
Test MQPRIO QDisc
Description
In this scenario, a MQPRIO qdisc is configured in DUT0
(eth0 interface) to achieve hardware-offloaded
multiqueue priority scheduling. Since MQPRIO does not support
software matches, external classification is performed via
traffic policies that set the class ID for packets.
- Multiple traffic classes are configured and tested:
Class 1: TCP packets destined to port 8080
Class 2: UDP packets destined to port 9090
Class 3: ICMP packets
Class 4: TCP packets destined to port 7070 (no bandwidth limit)
Class 6: Default class for unmatched traffic
Each class is tested individually to verify correct packet classification and counter updates.
Scenario
Step 1: Set the following configuration in DUT0 :
set interfaces ethernet eth0 address 10.0.0.2/24 set interfaces ethernet eth0 traffic control out QDISC set interfaces ethernet eth0 traffic policy link-out CLASSIFIER set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set traffic control QDISC type mqprio class 1 bandwidth rate 150 set traffic control QDISC type mqprio class 1 description PORT_8080 set traffic control QDISC type mqprio class 2 bandwidth rate 300 set traffic control QDISC type mqprio class 2 description PORT_9090_TCP set traffic control QDISC type mqprio class 3 bandwidth rate 200 set traffic control QDISC type mqprio class 3 description ICMP set traffic control QDISC type mqprio class 4 description NO_BANDWIDTH_LIMIT set traffic control QDISC type mqprio class 6 description DEFAULT set traffic control QDISC type mqprio default-class 6 set traffic policy CLASSIFIER rule 1 selector PORT_8080 set traffic policy CLASSIFIER rule 1 set class 1 set traffic policy CLASSIFIER rule 2 selector PORT_9090 set traffic policy CLASSIFIER rule 2 set class 2 set traffic policy CLASSIFIER rule 3 selector ICMP set traffic policy CLASSIFIER rule 3 set class 3 set traffic policy CLASSIFIER rule 4 selector PORT_7070 set traffic policy CLASSIFIER rule 4 set class 4 set traffic selector ICMP rule 1 protocol icmp set traffic selector PORT_7070 rule 1 destination port 7070 set traffic selector PORT_7070 rule 1 protocol tcp set traffic selector PORT_8080 rule 1 destination port 8080 set traffic selector PORT_8080 rule 1 protocol tcp set traffic selector PORT_9090 rule 1 destination port 9090 set traffic selector PORT_9090 rule 1 protocol udp
Step 2: Set the following configuration in DUT1 :
set interfaces ethernet eth0 address 10.0.0.1/24 set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 3: Ping the IP address 10.0.0.1 from DUT0:
admin@DUT0$ ping 10.0.0.1 count 1 size 56 timeout 1Show output
PING 10.0.0.1 (10.0.0.1) 56(84) bytes of data. 64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.517 ms --- 10.0.0.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.517/0.517/0.517/0.000 ms
Note
MQPRIO requires external classification. Traffic policies are used to set the class ID for packets before they reach the MQPRIO qdisc.
Step 4: Run the command traffic control clear on DUT0.
Step 5: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 8080 admin@DUT0$ monitor test performance client 10.0.0.1 duration 2 port 8080 parallel 1Expect the following output on
DUT0:Connecting to host 10.0.0.1, port 8080 [ 5] local 10.0.0.2 port 59064 connected to 10.0.0.1 port 8080 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 19.2 MBytes 161 Mbits/sec 0 235 KBytes [ 5] 1.00-2.00 sec 17.9 MBytes 150 Mbits/sec 0 257 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-2.00 sec 37.1 MBytes 156 Mbits/sec 0 sender [ 5] 0.00-2.00 sec 35.6 MBytes 149 Mbits/sec receiver iperf Done.
Step 6: Run the command traffic control show on DUT0 and expect the following output:
Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC mqprio root 39136860 25870 0 1:1 QDISC class 1 1:0 39136860 25870 0 1:2 QDISC class 2 1:0 0 0 0 1:3 QDISC class 3 1:0 0 0 0 1:4 QDISC class 4 1:0 0 0 0 1:6 QDISC class 6 (default) 1:0 0 0 0
Note
TCP traffic to port 8080 should be classified to class 1. The counters for class 1 should show packets/bytes.
Step 7: Run the command traffic control clear on DUT0.
Step 8: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 9090 admin@DUT0$ monitor test performance client 10.0.0.1 duration 2 udp port 9090 parallel 1 bandwidth 500MExpect the following output on
DUT0:Connecting to host 10.0.0.1, port 9090 [ 5] local 10.0.0.2 port 59387 connected to 10.0.0.1 port 9090 [ ID] Interval Transfer Bitrate Total Datagrams [ 5] 0.00-1.00 sec 36.1 MBytes 303 Mbits/sec 26164 [ 5] 1.00-2.00 sec 36.0 MBytes 302 Mbits/sec 26085 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-2.00 sec 72.2 MBytes 303 Mbits/sec 0.000 ms 0/52249 (0%) sender [ 5] 0.00-2.00 sec 70.3 MBytes 295 Mbits/sec 0.072 ms 1307/52200 (2.5%) receiver iperf Done.
Step 9: Run the command traffic control show on DUT0 and expect the following output:
Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC mqprio root 77852592 52266 0 1:1 QDISC class 1 1:0 0 0 0 1:2 QDISC class 2 1:0 77851056 52250 0 1:3 QDISC class 3 1:0 0 0 0 1:4 QDISC class 4 1:0 0 0 0 1:6 QDISC class 6 (default) 1:0 1536 16 0
Note
UDP traffic to port 9090 should be classified to class 2.
Step 10: Run the command traffic control clear on DUT0.
Step 11: Ping the IP address 10.0.0.2 from DUT1:
admin@DUT1$ ping 10.0.0.2 count 10 size 56 timeout 1 interval 0.1Show output
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data. 64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.417 ms 64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.208 ms 64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.249 ms 64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.282 ms 64 bytes from 10.0.0.2: icmp_seq=5 ttl=64 time=0.326 ms 64 bytes from 10.0.0.2: icmp_seq=6 ttl=64 time=0.277 ms 64 bytes from 10.0.0.2: icmp_seq=7 ttl=64 time=0.308 ms 64 bytes from 10.0.0.2: icmp_seq=8 ttl=64 time=0.277 ms 64 bytes from 10.0.0.2: icmp_seq=9 ttl=64 time=0.244 ms 64 bytes from 10.0.0.2: icmp_seq=10 ttl=64 time=0.256 ms --- 10.0.0.2 ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 936ms rtt min/avg/max/mdev = 0.208/0.284/0.417/0.054 ms
Step 12: Run the command traffic control show on DUT0 and expect the following output:
Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC mqprio root 980 10 0 1:1 QDISC class 1 1:0 0 0 0 1:2 QDISC class 2 1:0 0 0 0 1:3 QDISC class 3 1:0 980 10 0 1:4 QDISC class 4 1:0 0 0 0 1:6 QDISC class 6 (default) 1:0 0 0 0
Note
ICMP packets should be classified to class 3.
Step 13: Run the command traffic control clear on DUT0.
Step 14: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 7070 admin@DUT0$ monitor test performance client 10.0.0.1 duration 2 port 7070 parallel 1Expect the following output on
DUT0:Connecting to host 10.0.0.1, port 7070 [ 5] local 10.0.0.2 port 44102 connected to 10.0.0.1 port 7070 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 114 MBytes 955 Mbits/sec 0 563 KBytes [ 5] 1.00-2.00 sec 112 MBytes 943 Mbits/sec 0 802 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-2.00 sec 226 MBytes 949 Mbits/sec 0 sender [ 5] 0.00-2.00 sec 224 MBytes 936 Mbits/sec receiver iperf Done.
Step 15: Run the command traffic control show on DUT0 and expect the following output:
Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC mqprio root 246076923 162555 0 1:1 QDISC class 1 1:0 0 0 0 1:2 QDISC class 2 1:0 0 0 0 1:3 QDISC class 3 1:0 0 0 0 1:4 QDISC class 4 1:0 246076923 162555 0 1:6 QDISC class 6 (default) 1:0 0 0 0
Note
TCP traffic to port 7070 should be classified to class 4, which has no bandwidth limit configured.
Step 16: Run the command traffic control clear on DUT0.
Step 17: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 5555 admin@DUT0$ monitor test performance client 10.0.0.1 duration 2 port 5555 parallel 1Expect the following output on
DUT0:Connecting to host 10.0.0.1, port 5555 [ 5] local 10.0.0.2 port 43614 connected to 10.0.0.1 port 5555 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 114 MBytes 957 Mbits/sec 0 605 KBytes [ 5] 1.00-2.00 sec 112 MBytes 938 Mbits/sec 0 675 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-2.00 sec 226 MBytes 948 Mbits/sec 0 sender [ 5] 0.00-2.00 sec 223 MBytes 935 Mbits/sec receiver iperf Done.
Step 18: Run the command traffic control show on DUT0 and expect the following output:
Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC mqprio root 245286399 162030 0 1:1 QDISC class 1 1:0 0 0 0 1:2 QDISC class 2 1:0 0 0 0 1:3 QDISC class 3 1:0 0 0 0 1:4 QDISC class 4 1:0 0 0 0 1:6 QDISC class 6 (default) 1:0 245286399 162030 0
Note
TCP traffic to port 5555 (which doesn’t match any rule) should be classified to the default class (class 6).