Round-Robin

These scenarios cover some aspects related to link-aggregation (combining multiple network connections simultaneously to increase throughput, provide redundancy, or both). In OSDx, this can be achieved through bonding interfaces.

../../../../_images/topology1.svg

Test Round-Robin

Description

A bonding interface is configured in DUT0 using the round-robin mode. This mode can be used to achieve load-balancing.

Scenario

Example 1

Step 1: Set the following configuration in DUT0 :

set interfaces bonding bond0 address 192.168.100.10/24
set interfaces bonding bond0 miimon 100
set interfaces bonding bond0 mode round-robin
set interfaces ethernet eth0p0 bond-group bond0
set interfaces ethernet eth1 bond-group bond0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces bridge br0 address 192.168.100.20/24
set interfaces bridge br0 stp version rstp
set interfaces ethernet eth0 bridge-group bridge br0
set interfaces ethernet eth1 bridge-group bridge br0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run the command interfaces bonding show on DUT0 and check whether the output matches the following regular expressions:

bond0\s+192.168.100\.10\/24\s+up\s+up
Show output
---------------------------------------------------------------
Name          IP Address          Admin  Oper  Vrf  Description
---------------------------------------------------------------
bond0  192.168.100.10/24          up     up
       fe80::2a0:26ff:fe18:9d/64

Step 4: Run the command interfaces bonding bond0 show ports on DUT0 and check whether the output contains the following tokens:

Bonding Mode: load balancing (round-robin)
Show output
Ethernet Channel Bonding Driver: v6.12.49

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

Slave Interface: eth1
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 0
Permanent HW addr: 00:a0:26:18:00:9d
Slave queue ID: 0

Slave Interface: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:18:00:9c
Slave queue ID: 0

Step 5: Ping the IP address 192.168.100.20 from DUT0:

admin@DUT0$ ping 192.168.100.20 count 1 size 56 timeout 1
Show output
PING 192.168.100.20 (192.168.100.20) 56(84) bytes of data.
64 bytes from 192.168.100.20: icmp_seq=1 ttl=64 time=360 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 360.093/360.093/360.093/0.000 ms

Step 6: Run the command interfaces ethernet clear on DUT0.

Step 7: Initiate a bandwidth test from DUT0 to DUT1

admin@DUT1$ monitor test performance server port 5001
admin@DUT0$ monitor test performance client 192.168.100.20 duration 5 port 5001 parallel 10
Expect the following output on DUT0:
Connecting to host 192.168.100.20, port 5001
[  5] local 192.168.100.10 port 32898 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 32912 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 32916 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 32920 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 32930 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 32940 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 32950 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 32958 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 32972 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 32984 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  12.9 MBytes   109 Mbits/sec   41   76.4 KBytes
[  7]   0.00-1.00   sec  13.7 MBytes   115 Mbits/sec   40   60.8 KBytes
[  9]   0.00-1.00   sec  9.74 MBytes  81.7 Mbits/sec   46   38.2 KBytes
[ 11]   0.00-1.00   sec  10.3 MBytes  86.3 Mbits/sec   15   46.7 KBytes
[ 13]   0.00-1.00   sec  13.5 MBytes   113 Mbits/sec   35   76.4 KBytes
[ 15]   0.00-1.00   sec  11.5 MBytes  96.3 Mbits/sec   15   74.9 KBytes
[ 17]   0.00-1.00   sec  12.8 MBytes   107 Mbits/sec   17   87.7 KBytes
[ 19]   0.00-1.00   sec  11.5 MBytes  96.6 Mbits/sec   22   52.3 KBytes
[ 21]   0.00-1.00   sec  8.44 MBytes  70.8 Mbits/sec   29   35.4 KBytes
[ 23]   0.00-1.00   sec  11.7 MBytes  98.1 Mbits/sec   23   60.8 KBytes
[SUM]   0.00-1.00   sec   116 MBytes   974 Mbits/sec  283
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  12.3 MBytes   103 Mbits/sec   60   52.3 KBytes
[  7]   1.00-2.00   sec  13.5 MBytes   113 Mbits/sec   10   55.1 KBytes
[  9]   1.00-2.00   sec  10.6 MBytes  88.6 Mbits/sec   39   65.0 KBytes
[ 11]   1.00-2.00   sec  10.3 MBytes  86.0 Mbits/sec   45   65.0 KBytes
[ 13]   1.00-2.00   sec  10.3 MBytes  86.0 Mbits/sec   73   53.7 KBytes
[ 15]   1.00-2.00   sec  10.5 MBytes  88.1 Mbits/sec   38   49.5 KBytes
[ 17]   1.00-2.00   sec  13.4 MBytes   113 Mbits/sec   78   74.9 KBytes
[ 19]   1.00-2.00   sec  11.1 MBytes  92.8 Mbits/sec   57   74.9 KBytes
[ 21]   1.00-2.00   sec  10.3 MBytes  86.5 Mbits/sec   35   60.8 KBytes
[ 23]   1.00-2.00   sec  9.26 MBytes  77.7 Mbits/sec   71   63.6 KBytes
[SUM]   1.00-2.00   sec   111 MBytes   935 Mbits/sec  506
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  10.9 MBytes  91.7 Mbits/sec   55   69.3 KBytes
[  7]   2.00-3.00   sec  10.2 MBytes  85.5 Mbits/sec   34   53.7 KBytes
[  9]   2.00-3.00   sec  11.7 MBytes  98.0 Mbits/sec   16   52.3 KBytes
[ 11]   2.00-3.00   sec  12.7 MBytes   107 Mbits/sec   18   93.3 KBytes
[ 13]   2.00-3.00   sec  10.7 MBytes  89.7 Mbits/sec   49   70.7 KBytes
[ 15]   2.00-3.00   sec  11.7 MBytes  98.0 Mbits/sec   49   80.6 KBytes
[ 17]   2.00-3.00   sec  13.0 MBytes   109 Mbits/sec   18   73.5 KBytes
[ 19]   2.00-3.00   sec  9.26 MBytes  77.7 Mbits/sec   65   50.9 KBytes
[ 21]   2.00-3.00   sec  9.51 MBytes  79.8 Mbits/sec   73   36.8 KBytes
[ 23]   2.00-3.00   sec  12.2 MBytes   102 Mbits/sec   53   69.3 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   938 Mbits/sec  430
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   67   63.6 KBytes
[  7]   3.00-4.00   sec  10.7 MBytes  89.7 Mbits/sec   55   65.0 KBytes
[  9]   3.00-4.00   sec  9.82 MBytes  82.4 Mbits/sec   69   45.2 KBytes
[ 11]   3.00-4.00   sec  13.3 MBytes   112 Mbits/sec   64   80.6 KBytes
[ 13]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec   63   60.8 KBytes
[ 15]   3.00-4.00   sec  12.7 MBytes   107 Mbits/sec   71   77.8 KBytes
[ 17]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec   72   50.9 KBytes
[ 19]   3.00-4.00   sec  10.6 MBytes  89.1 Mbits/sec   51   43.8 KBytes
[ 21]   3.00-4.00   sec  8.58 MBytes  71.9 Mbits/sec   36   39.6 KBytes
[ 23]   3.00-4.00   sec  13.2 MBytes   111 Mbits/sec   62   76.4 KBytes
[SUM]   3.00-4.00   sec   111 MBytes   932 Mbits/sec  610
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  10.3 MBytes  86.0 Mbits/sec   65   52.3 KBytes
[  7]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   73   52.3 KBytes
[  9]   4.00-5.00   sec  7.95 MBytes  66.7 Mbits/sec   51   58.0 KBytes
[ 11]   4.00-5.00   sec  10.9 MBytes  91.7 Mbits/sec   25   49.5 KBytes
[ 13]   4.00-5.00   sec  11.9 MBytes   100 Mbits/sec   55   76.4 KBytes
[ 15]   4.00-5.00   sec  14.9 MBytes   125 Mbits/sec   74   59.4 KBytes
[ 17]   4.00-5.00   sec  12.5 MBytes   105 Mbits/sec   11   86.3 KBytes
[ 19]   4.00-5.00   sec  11.9 MBytes  99.6 Mbits/sec   33   59.4 KBytes
[ 21]   4.00-5.00   sec  9.38 MBytes  78.7 Mbits/sec   37   42.4 KBytes
[ 23]   4.00-5.00   sec  9.45 MBytes  79.2 Mbits/sec   68   29.7 KBytes
[SUM]   4.00-5.00   sec   111 MBytes   934 Mbits/sec  492
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  57.4 MBytes  96.2 Mbits/sec  288             sender
[  5]   0.00-5.01   sec  57.1 MBytes  95.5 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  60.3 MBytes   101 Mbits/sec  212             sender
[  7]   0.00-5.01   sec  59.8 MBytes   100 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  49.8 MBytes  83.5 Mbits/sec  221             sender
[  9]   0.00-5.01   sec  49.4 MBytes  82.7 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  57.5 MBytes  96.5 Mbits/sec  167             sender
[ 11]   0.00-5.01   sec  57.0 MBytes  95.4 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  56.3 MBytes  94.5 Mbits/sec  275             sender
[ 13]   0.00-5.01   sec  55.9 MBytes  93.5 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  61.3 MBytes   103 Mbits/sec  247             sender
[ 15]   0.00-5.01   sec  60.6 MBytes   101 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  62.9 MBytes   105 Mbits/sec  196             sender
[ 17]   0.00-5.01   sec  62.5 MBytes   105 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  54.3 MBytes  91.2 Mbits/sec  228             sender
[ 19]   0.00-5.01   sec  54.0 MBytes  90.4 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  46.2 MBytes  77.6 Mbits/sec  210             sender
[ 21]   0.00-5.01   sec  45.8 MBytes  76.6 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  55.8 MBytes  93.6 Mbits/sec  277             sender
[ 23]   0.00-5.01   sec  55.3 MBytes  92.6 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   562 MBytes   942 Mbits/sec  2321             sender
[SUM]   0.00-5.01   sec   557 MBytes   933 Mbits/sec                  receiver

iperf Done.

Step 8: Run the command interfaces ethernet show counters on DUT0 and check whether the output matches the following regular expressions:

eth1 \s+up\s+\d+\s+\d+\s+0\s+\d{2,}
eth0p0 \s+up\s+\d+\s+\d+\s+0\s+\d{2,}
Show output
-------------------------------------------------------------------------------
 Name   Oper  Rx Packets  Rx Bytes  Rx Errors  Tx Packets  Tx Bytes   Tx Errors
-------------------------------------------------------------------------------
eth0p0  up         61251   4299164          0      203290  307712037          0
eth0p1  down           0         0          0           0          0          0
eth0p2  down           0         0          0           0          0          0
eth0p3  down           0         0          0           0          0          0
eth0p4  down           0         0          0           0          0          0
eth0p5  down           0         0          0           0          0          0
eth0p6  down           0         0          0           0          0          0
eth0p7  down           0         0          0           0          0          0
  eth1  up         57513   4062704          0      203471  307985443          0
  eth2  down           0         0          0           0          0          0

Example 2

Step 1: Set the following configuration in DUT0 :

set interfaces bonding bond0 address 192.168.100.10/24
set interfaces bonding bond0 miimon 100
set interfaces bonding bond0 mode round-robin
set interfaces ethernet eth0p0 bond-group bond0
set interfaces ethernet eth0p4 bond-group bond0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 2: Set the following configuration in DUT1 :

set interfaces bridge br0 address 192.168.100.20/24
set interfaces bridge br0 stp version rstp
set interfaces ethernet eth1 bridge-group bridge br0
set interfaces ethernet eth2 bridge-group bridge br0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run the command interfaces bonding show on DUT0 and check whether the output matches the following regular expressions:

bond0\s+192.168.100\.10\/24\s+up\s+up
Show output
--------------------------------------------------------------
Name          IP Address         Admin  Oper  Vrf  Description
--------------------------------------------------------------
bond0  192.168.100.10/24         up     up
       fe80::a0:26ff:fe18:9f/64

Step 4: Run the command interfaces bonding bond0 show ports on DUT0 and check whether the output contains the following tokens:

Bonding Mode: load balancing (round-robin)
Show output
Ethernet Channel Bonding Driver: v6.12.49

Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

Slave Interface: eth0p4
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 02:a0:26:18:00:9f
Slave queue ID: 0

Slave Interface: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:18:00:9c
Slave queue ID: 0

Step 5: Ping the IP address 192.168.100.20 from DUT0:

admin@DUT0$ ping 192.168.100.20 count 1 size 56 timeout 1
Show output
PING 192.168.100.20 (192.168.100.20) 56(84) bytes of data.
64 bytes from 192.168.100.20: icmp_seq=1 ttl=64 time=316 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 315.812/315.812/315.812/0.000 ms

Step 6: Run the command interfaces ethernet clear on DUT0.

Step 7: Initiate a bandwidth test from DUT0 to DUT1

admin@DUT1$ monitor test performance server port 5001
admin@DUT0$ monitor test performance client 192.168.100.20 duration 5 port 5001 parallel 10
Expect the following output on DUT0:
Connecting to host 192.168.100.20, port 5001
[  5] local 192.168.100.10 port 33938 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 33940 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 33956 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 33964 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 33966 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 33974 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 33990 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 33994 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 34004 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 34014 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  13.4 MBytes   113 Mbits/sec  139   87.7 KBytes
[  7]   0.00-1.00   sec  13.7 MBytes   115 Mbits/sec   24   49.5 KBytes
[  9]   0.00-1.00   sec  13.4 MBytes   112 Mbits/sec   42   39.6 KBytes
[ 11]   0.00-1.00   sec  10.4 MBytes  87.3 Mbits/sec   27   59.4 KBytes
[ 13]   0.00-1.00   sec  10.9 MBytes  91.8 Mbits/sec   25   72.1 KBytes
[ 15]   0.00-1.00   sec  11.6 MBytes  97.3 Mbits/sec   43   36.8 KBytes
[ 17]   0.00-1.00   sec  11.1 MBytes  93.2 Mbits/sec   30   52.3 KBytes
[ 19]   0.00-1.00   sec  7.27 MBytes  61.0 Mbits/sec   47   33.9 KBytes
[ 21]   0.00-1.00   sec  11.3 MBytes  94.7 Mbits/sec   39   69.3 KBytes
[ 23]   0.00-1.00   sec  12.8 MBytes   107 Mbits/sec   22   74.9 KBytes
[SUM]   0.00-1.00   sec   116 MBytes   973 Mbits/sec  438
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  13.6 MBytes   114 Mbits/sec   30   94.7 KBytes
[  7]   1.00-2.00   sec  10.7 MBytes  89.6 Mbits/sec   33   46.7 KBytes
[  9]   1.00-2.00   sec  8.70 MBytes  73.0 Mbits/sec   21   43.8 KBytes
[ 11]   1.00-2.00   sec  10.8 MBytes  90.1 Mbits/sec   28   31.1 KBytes
[ 13]   1.00-2.00   sec  11.4 MBytes  95.4 Mbits/sec   31   50.9 KBytes
[ 15]   1.00-2.00   sec  11.0 MBytes  92.2 Mbits/sec   17   45.2 KBytes
[ 17]   1.00-2.00   sec  10.5 MBytes  88.1 Mbits/sec   24   42.4 KBytes
[ 19]   1.00-2.00   sec  10.4 MBytes  87.5 Mbits/sec   30   46.7 KBytes
[ 21]   1.00-2.00   sec  12.5 MBytes   105 Mbits/sec   31   63.6 KBytes
[ 23]   1.00-2.00   sec  12.6 MBytes   106 Mbits/sec   18   70.7 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   941 Mbits/sec  263
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  12.0 MBytes   101 Mbits/sec   41   42.4 KBytes
[  7]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   19   45.2 KBytes
[  9]   2.00-3.00   sec  9.76 MBytes  81.9 Mbits/sec   31   55.1 KBytes
[ 11]   2.00-3.00   sec  11.4 MBytes  95.4 Mbits/sec   21   32.5 KBytes
[ 13]   2.00-3.00   sec  11.2 MBytes  93.9 Mbits/sec   28   74.9 KBytes
[ 15]   2.00-3.00   sec  11.8 MBytes  99.1 Mbits/sec   23   69.3 KBytes
[ 17]   2.00-3.00   sec  10.9 MBytes  91.3 Mbits/sec   19   58.0 KBytes
[ 19]   2.00-3.00   sec  10.0 MBytes  84.0 Mbits/sec   22   42.4 KBytes
[ 21]   2.00-3.00   sec  9.57 MBytes  80.3 Mbits/sec   22   53.7 KBytes
[ 23]   2.00-3.00   sec  13.2 MBytes   111 Mbits/sec   25   74.9 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   941 Mbits/sec  251
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  12.2 MBytes   103 Mbits/sec   18   60.8 KBytes
[  7]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   25   66.5 KBytes
[  9]   3.00-4.00   sec  11.9 MBytes   100 Mbits/sec   24   55.1 KBytes
[ 11]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec   28   79.2 KBytes
[ 13]   3.00-4.00   sec  12.6 MBytes   106 Mbits/sec   26   41.0 KBytes
[ 15]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec   18   33.9 KBytes
[ 17]   3.00-4.00   sec  9.14 MBytes  76.6 Mbits/sec   25   43.8 KBytes
[ 19]   3.00-4.00   sec  11.2 MBytes  94.3 Mbits/sec   18   58.0 KBytes
[ 21]   3.00-4.00   sec  10.4 MBytes  87.5 Mbits/sec   31   19.8 KBytes
[ 23]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   23   41.0 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   938 Mbits/sec  236
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  12.1 MBytes   101 Mbits/sec   40   50.9 KBytes
[  7]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   18   82.0 KBytes
[  9]   4.00-5.00   sec  10.8 MBytes  90.2 Mbits/sec   31   41.0 KBytes
[ 11]   4.00-5.00   sec  12.8 MBytes   107 Mbits/sec   41   56.6 KBytes
[ 13]   4.00-5.00   sec  10.5 MBytes  88.1 Mbits/sec   27   53.7 KBytes
[ 15]   4.00-5.00   sec  10.9 MBytes  91.8 Mbits/sec   20   50.9 KBytes
[ 17]   4.00-5.00   sec  9.69 MBytes  81.3 Mbits/sec   22   55.1 KBytes
[ 19]   4.00-5.00   sec  11.5 MBytes  96.5 Mbits/sec   16   46.7 KBytes
[ 21]   4.00-5.00   sec  10.4 MBytes  87.1 Mbits/sec   24   72.1 KBytes
[ 23]   4.00-5.00   sec  10.7 MBytes  89.7 Mbits/sec   29   36.8 KBytes
[SUM]   4.00-5.00   sec   111 MBytes   935 Mbits/sec  268
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  63.3 MBytes   106 Mbits/sec  268             sender
[  5]   0.00-5.01   sec  62.6 MBytes   105 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  60.0 MBytes   101 Mbits/sec  119             sender
[  7]   0.00-5.01   sec  59.4 MBytes  99.4 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  54.5 MBytes  91.5 Mbits/sec  149             sender
[  9]   0.00-5.01   sec  54.1 MBytes  90.6 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  56.5 MBytes  94.8 Mbits/sec  145             sender
[ 11]   0.00-5.01   sec  55.9 MBytes  93.7 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  56.6 MBytes  95.0 Mbits/sec  137             sender
[ 13]   0.00-5.01   sec  56.1 MBytes  94.0 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  56.5 MBytes  94.8 Mbits/sec  121             sender
[ 15]   0.00-5.01   sec  56.1 MBytes  94.0 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  51.3 MBytes  86.1 Mbits/sec  120             sender
[ 17]   0.00-5.01   sec  50.8 MBytes  85.2 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  50.5 MBytes  84.7 Mbits/sec  133             sender
[ 19]   0.00-5.01   sec  50.1 MBytes  83.8 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  54.2 MBytes  90.9 Mbits/sec  147             sender
[ 21]   0.00-5.01   sec  53.6 MBytes  89.8 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  60.2 MBytes   101 Mbits/sec  117             sender
[ 23]   0.00-5.01   sec  59.7 MBytes  99.9 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   564 MBytes   946 Mbits/sec  1456             sender
[SUM]   0.00-5.01   sec   558 MBytes   935 Mbits/sec                  receiver

iperf Done.

Step 8: Run the command interfaces ethernet show counters on DUT0 and check whether the output matches the following regular expressions:

eth0p0 \s+up\s+\d+\s+\d+\s+0\s+\d{2,}
eth0p4 \s+up\s+\d+\s+\d+\s+0\s+\d{2,}
Show output
-------------------------------------------------------------------------------
 Name   Oper  Rx Packets  Rx Bytes  Rx Errors  Tx Packets  Tx Bytes   Tx Errors
-------------------------------------------------------------------------------
eth0p0  up         64135   4410175          0      203027  307349575          0
eth0p1  down           0         0          0           0          0          0
eth0p2  down           0         0          0           0          0          0
eth0p3  down           0         0          0           0          0          0
eth0p4  up         79025   5444127          0      203324  307796894          0
eth0p5  down           0         0          0           0          0          0
eth0p6  down           0         0          0           0          0          0
eth0p7  down           0         0          0           0          0          0
  eth1  down           0         0          0           0          0          0
  eth2  down           0         0          0           0          0          0