Policy
Tests for LWDRR classification using traffic policies. Verifies that rate shaping works with policy-based classification and that assigning traffic to a non-leaf parent class causes it to fall to the default class.
Test LWDRR Policy Rate TCP 8080
Description
Configures a two-level LWDRR hierarchy with traffic policy pre-classification and verifies that TCP traffic on port 8080 is shaped to ~30 Mbps by class 11 (child of class 10).
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 out CLASSIFIER set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set traffic control QDISC type lwdrr bandwidth 100 set traffic control QDISC type lwdrr class 10 bandwidth percentage 50 set traffic control QDISC type lwdrr class 10 weight 100 set traffic control QDISC type lwdrr class 11 bandwidth rate 30 set traffic control QDISC type lwdrr class 11 parent 10 set traffic control QDISC type lwdrr class 11 weight 60 set traffic control QDISC type lwdrr class 12 bandwidth percentage 10 set traffic control QDISC type lwdrr class 12 weight 50 set traffic control QDISC type lwdrr default-class 12 set traffic policy CLASSIFIER rule 1 selector SEL_TCP_8080 set traffic policy CLASSIFIER rule 1 set class 11 set traffic selector SEL_TCP_8080 rule 1 destination port 8080 set traffic selector SEL_TCP_8080 rule 1 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$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 3: Ping the IP address 10.0.0.1 from DUT0:
admin@DUT0$ 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=0.480 ms --- 10.0.0.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.480/0.480/0.480/0.000 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 the following output on
DUT0:Connecting to host 10.0.0.1, port 8080 [ 5] local 10.0.0.2 port 36178 connected to 10.0.0.1 port 8080 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 5.02 MBytes 42.1 Mbits/sec 0 240 KBytes [ 5] 1.00-2.00 sec 3.48 MBytes 29.2 Mbits/sec 0 240 KBytes [ 5] 2.00-3.00 sec 3.48 MBytes 29.2 Mbits/sec 0 240 KBytes [ 5] 3.00-4.00 sec 3.48 MBytes 29.2 Mbits/sec 0 240 KBytes [ 5] 4.00-5.00 sec 2.98 MBytes 25.0 Mbits/sec 0 240 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 18.4 MBytes 30.9 Mbits/sec 0 sender [ 5] 0.00-5.02 sec 17.6 MBytes 29.4 Mbits/sec receiver iperf Done.
Step 5: Run the command traffic control show on DUT0 and check whether the output matches the following regular expressions:
class 11\s+1:10\s+[1-9]Show output
Traffic control for interface 'eth0' - 'egress' mode ---------------------------------------------------------------------------------------- ID traffic control type parent bytes sent pkts sent pkts dropped ---------------------------------------------------------------------------------------- 1:0 QDISC lwdrr root 19495557 360 0 1:10 QDISC class 10 1:0 19494527 351 0 1:11 QDISC class 11 1:10 19494527 351 0 1:12 QDISC class 12 (default) 1:0 1030 9 0
Test LWDRR Policy Assigns To Parent Class
Description
When a traffic policy assigns a packet to a parent class (a class that has children), the packet cannot be enqueued there because parent classes have no leaf qdisc. The packet must fall to the default class instead.
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 out CLASSIFIER set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0' set traffic control QDISC type lwdrr bandwidth 100 set traffic control QDISC type lwdrr class 10 bandwidth percentage 50 set traffic control QDISC type lwdrr class 10 weight 100 set traffic control QDISC type lwdrr class 11 bandwidth rate 30 set traffic control QDISC type lwdrr class 11 parent 10 set traffic control QDISC type lwdrr class 11 weight 60 set traffic control QDISC type lwdrr class 12 bandwidth percentage 10 set traffic control QDISC type lwdrr class 12 weight 50 set traffic control QDISC type lwdrr default-class 12 set traffic policy CLASSIFIER rule 1 selector SEL_TCP set traffic policy CLASSIFIER rule 1 set class 10 set traffic selector SEL_TCP rule 1 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$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'
Step 3: Ping the IP address 10.0.0.1 from DUT0:
admin@DUT0$ 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=1.08 ms --- 10.0.0.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 1.083/1.083/1.083/0.000 ms
Step 4: Initiate a bandwidth test from DUT0 to DUT1
admin@DUT1$ monitor test performance server port 5001 admin@DUT0$ monitor test performance client 10.0.0.1 duration 5 port 5001 parallel 1Expect the following output on
DUT0:Connecting to host 10.0.0.1, port 5001 [ 5] local 10.0.0.2 port 59974 connected to 10.0.0.1 port 5001 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 2.33 MBytes 19.6 Mbits/sec 0 185 KBytes [ 5] 1.00-2.00 sec 954 KBytes 7.82 Mbits/sec 0 221 KBytes [ 5] 2.00-3.00 sec 1.49 MBytes 12.5 Mbits/sec 0 221 KBytes [ 5] 3.00-4.00 sec 1018 KBytes 8.34 Mbits/sec 0 221 KBytes [ 5] 4.00-5.00 sec 1018 KBytes 8.34 Mbits/sec 0 221 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-5.00 sec 6.74 MBytes 11.3 Mbits/sec 0 sender [ 5] 0.00-5.06 sec 5.91 MBytes 9.80 Mbits/sec receiver iperf Done.
Step 5: Run the command traffic control show on DUT0 and check whether the output matches the following regular expressions:
class 10\s+1:0\s+0 class 12 \(default\)\s+1:0\s+[1-9]Show output
Traffic control for interface 'eth0' - 'egress' mode ---------------------------------------------------------------------------------------- ID traffic control type parent bytes sent pkts sent pkts dropped ---------------------------------------------------------------------------------------- 1:0 QDISC lwdrr root 6691912 149 0 1:10 QDISC class 10 1:0 0 0 0 1:11 QDISC class 11 1:10 0 0 0 1:12 QDISC class 12 (default) 1:0 6691912 149 0