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=0.423 ms --- 10.0.0.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.423/0.423/0.423/0.000 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 59304 connected to 10.0.0.1 port 8080 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 18.9 MBytes 158 Mbits/sec 0 206 KBytes [ 5] 1.00-2.00 sec 18.3 MBytes 153 Mbits/sec 0 260 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 39143187 25872 0 1:1 QDISC class 1 1:0 39143187 25872 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 38279 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 26086 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-2.00 sec 72.2 MBytes 303 Mbits/sec 0.000 ms 0/52250 (0%) sender [ 5] 0.00-2.00 sec 70.6 MBytes 296 Mbits/sec 0.069 ms 1107/52200 (2.1%) 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 77854078 52267 0 1:1 QDISC class 1 1:0 0 0 0 1:2 QDISC class 2 1:0 77852546 52251 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 1532 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=0.470 ms 64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.294 ms 64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.367 ms 64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.289 ms 64 bytes from 10.0.0.2: icmp_seq=5 ttl=64 time=0.297 ms 64 bytes from 10.0.0.2: icmp_seq=6 ttl=64 time=0.284 ms 64 bytes from 10.0.0.2: icmp_seq=7 ttl=64 time=0.269 ms 64 bytes from 10.0.0.2: icmp_seq=8 ttl=64 time=0.290 ms 64 bytes from 10.0.0.2: icmp_seq=9 ttl=64 time=0.303 ms 64 bytes from 10.0.0.2: icmp_seq=10 ttl=64 time=0.292 ms --- 10.0.0.2 ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 934ms rtt min/avg/max/mdev = 0.269/0.315/0.470/0.057 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 39664 connected to 10.0.0.1 port 7070 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 115 MBytes 961 Mbits/sec 0 732 KBytes [ 5] 1.00-2.00 sec 112 MBytes 944 Mbits/sec 0 925 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-2.00 sec 227 MBytes 953 Mbits/sec 0 sender [ 5] 0.00-2.00 sec 224 MBytes 938 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 246155109 162605 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 246155109 162605 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 48986 connected to 10.0.0.1 port 5555 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 114 MBytes 960 Mbits/sec 0 621 KBytes [ 5] 1.00-2.00 sec 112 MBytes 944 Mbits/sec 0 922 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-2.00 sec 227 MBytes 952 Mbits/sec 0 sender [ 5] 0.00-2.00 sec 224 MBytes 939 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 246691962 162959 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 246691962 162959 0
Note
TCP traffic to port 5555 (which doesn’t match any rule) should be classified to the default class (class 6).