Wfq
The following scenario shows how to configure a WFQ qdisc.
Test WFQ QDisc
Description
In this scenario, a WFQ qdisc is configured in DUT0
(eth0 interface) to achieve linksharing
among a hierarchy of classes.
Since hardware offload is not configured, HTB is used
internally.
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 system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set traffic control QDISC type wfq bandwidth 100 set traffic control QDISC type wfq class 1 weight 50 set traffic control QDISC type wfq class 2 weight 30 set traffic control QDISC type wfq class 8 weight 20 set traffic control QDISC type wfq default-class 8 set traffic control QDISC type wfq match 1 class 1 set traffic control QDISC type wfq match 1 ip destination port 8080 set traffic control QDISC type wfq match 2 class 2 set traffic control QDISC type wfq match 2 ip protocol tcp
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$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 3: Ping IP address 10.0.0.1 from DUT0:
admin@DUT0$ 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=0.343 ms --- 10.0.0.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.343/0.343/0.343/0.000 ms
Step 4: 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 5 port 8080 parallel 1Expect this output in
DUT0:Connecting to host 10.0.0.1, port 8080 [ 5] local 10.0.0.2 port 45572 connected to 10.0.0.1 port 8080 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 13.7 MBytes 115 Mbits/sec 109 126 KBytes [ 5] 1.00-2.00 sec 11.4 MBytes 95.4 Mbits/sec 30 117 KBytes [ 5] 2.00-3.00 sec 11.9 MBytes 99.6 Mbits/sec 37 102 KBytes [ 5] 3.00-4.00 sec 11.0 MBytes 92.3 Mbits/sec 24 96.2 KBytes [ 5] 4.00-5.00 sec 11.4 MBytes 95.9 Mbits/sec 7 97.6 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 59.4 MBytes 99.7 Mbits/sec 207 sender [ 5] 0.00-5.00 sec 58.4 MBytes 98.0 Mbits/sec receiver iperf Done.
Step 5: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 1234 admin@DUT0$ monitor test performance client 10.0.0.1 duration 5 port 1234 parallel 1Expect this output in
DUT0:Connecting to host 10.0.0.1, port 1234 [ 5] local 10.0.0.2 port 59766 connected to 10.0.0.1 port 1234 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 14.0 MBytes 117 Mbits/sec 112 96.2 KBytes [ 5] 1.00-2.00 sec 11.6 MBytes 97.0 Mbits/sec 3 136 KBytes [ 5] 2.00-3.00 sec 11.6 MBytes 97.0 Mbits/sec 15 120 KBytes [ 5] 3.00-4.00 sec 11.1 MBytes 93.3 Mbits/sec 23 146 KBytes [ 5] 4.00-5.00 sec 11.7 MBytes 98.0 Mbits/sec 11 134 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 59.9 MBytes 101 Mbits/sec 164 sender [ 5] 0.00-5.00 sec 58.4 MBytes 98.0 Mbits/sec receiver iperf Done.
Step 6: Run command traffic control show at DUT0 and check if output contains the following tokens:
htb class 1 class 2 class 8 (default)Show output
Traffic control for interface 'eth0' - 'egress' mode ------------------------------------------------------------------------------------ ID traffic control type parent bytes sent pkts sent pkts dropped ------------------------------------------------------------------------------------ 1:0 QDISC htb root 128365898 84830 21 1:1 QDISC class 1 1:0 64162107 42398 0 1:2 QDISC class 2 1:0 64202935 42424 0 1:8 QDISC class 8 (default) 1:0 856 8 0 2:0 - htb 1:1 64162107 42398 11 3:0 - htb 1:2 64202935 42424 10 4:0 - htb 1:8 856 8 0