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 eth2 bridge-group bridge br0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces bonding show at DUT0 and check if 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:fe16:16/64

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

Bonding Mode: load balancing (round-robin)
Show output
Ethernet Channel Bonding Driver: v6.12.20

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: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:16:00:16
Slave queue ID: 0

Slave Interface: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:16:00:15
Slave queue ID: 0

Step 5: Ping 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=0.682 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.682/0.682/0.682/0.000 ms

Step 6: Run command interfaces ethernet clear at 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 this output in DUT0:
Connecting to host 192.168.100.20, port 5001
[  5] local 192.168.100.10 port 48086 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 48094 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 48100 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 48116 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 48130 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 48144 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 48156 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 48170 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 48178 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 48194 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  10.6 MBytes  88.6 Mbits/sec   66   84.8 KBytes
[  7]   0.00-1.00   sec  7.67 MBytes  64.4 Mbits/sec   50   21.2 KBytes
[  9]   0.00-1.00   sec  3.45 MBytes  28.9 Mbits/sec   23   32.5 KBytes
[ 11]   0.00-1.00   sec  3.79 MBytes  31.8 Mbits/sec   27   32.5 KBytes
[ 13]   0.00-1.00   sec  2.87 MBytes  24.1 Mbits/sec   24   22.6 KBytes
[ 15]   0.00-1.00   sec  3.79 MBytes  31.8 Mbits/sec   21   59.4 KBytes
[ 17]   0.00-1.00   sec  5.19 MBytes  43.5 Mbits/sec   16   60.8 KBytes
[ 19]   0.00-1.00   sec  5.21 MBytes  43.7 Mbits/sec   24   39.6 KBytes
[ 21]   0.00-1.00   sec  3.77 MBytes  31.6 Mbits/sec   32   22.6 KBytes
[ 23]   0.00-1.00   sec  4.62 MBytes  38.7 Mbits/sec   23   26.9 KBytes
[SUM]   0.00-1.00   sec  50.9 MBytes   427 Mbits/sec  306
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  6.77 MBytes  56.8 Mbits/sec   72   28.3 KBytes
[  7]   1.00-2.00   sec  3.36 MBytes  28.1 Mbits/sec   27   26.9 KBytes
[  9]   1.00-2.00   sec  4.60 MBytes  38.6 Mbits/sec   25   32.5 KBytes
[ 11]   1.00-2.00   sec  4.54 MBytes  38.1 Mbits/sec   44   42.4 KBytes
[ 13]   1.00-2.00   sec  3.11 MBytes  26.1 Mbits/sec   23   53.7 KBytes
[ 15]   1.00-2.00   sec  6.15 MBytes  51.6 Mbits/sec   40   43.8 KBytes
[ 17]   1.00-2.00   sec  6.03 MBytes  50.6 Mbits/sec   96   28.3 KBytes
[ 19]   1.00-2.00   sec  5.16 MBytes  43.3 Mbits/sec   28   46.7 KBytes
[ 21]   1.00-2.00   sec  4.04 MBytes  33.9 Mbits/sec   33   45.2 KBytes
[ 23]   1.00-2.00   sec  4.72 MBytes  39.6 Mbits/sec   30   46.7 KBytes
[SUM]   1.00-2.00   sec  48.5 MBytes   407 Mbits/sec  418
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  4.47 MBytes  37.5 Mbits/sec   12   41.0 KBytes
[  7]   2.00-3.00   sec  7.89 MBytes  66.2 Mbits/sec   18   77.8 KBytes
[  9]   2.00-3.00   sec  4.85 MBytes  40.7 Mbits/sec   21   50.9 KBytes
[ 11]   2.00-3.00   sec  4.78 MBytes  40.1 Mbits/sec   18   33.9 KBytes
[ 13]   2.00-3.00   sec  4.23 MBytes  35.4 Mbits/sec   28   35.4 KBytes
[ 15]   2.00-3.00   sec  4.47 MBytes  37.5 Mbits/sec   24   26.9 KBytes
[ 17]   2.00-3.00   sec  4.60 MBytes  38.6 Mbits/sec   19   33.9 KBytes
[ 19]   2.00-3.00   sec  4.47 MBytes  37.5 Mbits/sec   16   31.1 KBytes
[ 21]   2.00-3.00   sec  5.03 MBytes  42.2 Mbits/sec   24   42.4 KBytes
[ 23]   2.00-3.00   sec  4.29 MBytes  36.0 Mbits/sec   29   33.9 KBytes
[SUM]   2.00-3.00   sec  49.1 MBytes   412 Mbits/sec  209
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  4.85 MBytes  40.7 Mbits/sec    9   62.2 KBytes
[  7]   3.00-4.00   sec  6.96 MBytes  58.4 Mbits/sec   22   26.9 KBytes
[  9]   3.00-4.00   sec  5.41 MBytes  45.4 Mbits/sec   36   36.8 KBytes
[ 11]   3.00-4.00   sec  3.91 MBytes  32.8 Mbits/sec   21   36.8 KBytes
[ 13]   3.00-4.00   sec  4.54 MBytes  38.1 Mbits/sec   22   21.2 KBytes
[ 15]   3.00-4.00   sec  4.29 MBytes  36.0 Mbits/sec   13   36.8 KBytes
[ 17]   3.00-4.00   sec  4.23 MBytes  35.4 Mbits/sec   18   36.8 KBytes
[ 19]   3.00-4.00   sec  3.36 MBytes  28.1 Mbits/sec   20   21.2 KBytes
[ 21]   3.00-4.00   sec  4.60 MBytes  38.6 Mbits/sec   24   56.6 KBytes
[ 23]   3.00-4.00   sec  4.54 MBytes  38.1 Mbits/sec   19   32.5 KBytes
[SUM]   3.00-4.00   sec  46.7 MBytes   391 Mbits/sec  204
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  12.4 MBytes   104 Mbits/sec   10   76.4 KBytes
[  7]   4.00-5.00   sec  8.26 MBytes  69.3 Mbits/sec   23   53.7 KBytes
[  9]   4.00-5.00   sec  12.0 MBytes   101 Mbits/sec    5    134 KBytes
[ 11]   4.00-5.00   sec  9.63 MBytes  80.8 Mbits/sec   27   70.7 KBytes
[ 13]   4.00-5.00   sec  8.33 MBytes  69.8 Mbits/sec   15   65.0 KBytes
[ 15]   4.00-5.00   sec  6.90 MBytes  57.9 Mbits/sec   11   94.7 KBytes
[ 17]   4.00-5.00   sec  8.02 MBytes  67.2 Mbits/sec    6   72.1 KBytes
[ 19]   4.00-5.00   sec  5.97 MBytes  50.0 Mbits/sec   10   72.1 KBytes
[ 21]   4.00-5.00   sec  8.20 MBytes  68.8 Mbits/sec   13   99.0 KBytes
[ 23]   4.00-5.00   sec  8.58 MBytes  71.9 Mbits/sec   13    105 KBytes
[SUM]   4.00-5.00   sec  88.3 MBytes   741 Mbits/sec  133
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  39.1 MBytes  65.6 Mbits/sec  169             sender
[  5]   0.00-5.01   sec  38.3 MBytes  64.2 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  34.1 MBytes  57.3 Mbits/sec  140             sender
[  7]   0.00-5.01   sec  33.3 MBytes  55.7 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  30.3 MBytes  50.8 Mbits/sec  110             sender
[  9]   0.00-5.01   sec  29.5 MBytes  49.4 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  26.7 MBytes  44.7 Mbits/sec  137             sender
[ 11]   0.00-5.01   sec  26.0 MBytes  43.6 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  23.1 MBytes  38.7 Mbits/sec  112             sender
[ 13]   0.00-5.01   sec  22.5 MBytes  37.7 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  25.6 MBytes  42.9 Mbits/sec  109             sender
[ 15]   0.00-5.01   sec  25.1 MBytes  42.1 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  28.1 MBytes  47.1 Mbits/sec  155             sender
[ 17]   0.00-5.01   sec  27.5 MBytes  46.0 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  24.2 MBytes  40.5 Mbits/sec   98             sender
[ 19]   0.00-5.01   sec  23.8 MBytes  39.8 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  25.6 MBytes  43.0 Mbits/sec  126             sender
[ 21]   0.00-5.01   sec  25.2 MBytes  42.2 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  26.7 MBytes  44.9 Mbits/sec  114             sender
[ 23]   0.00-5.01   sec  26.3 MBytes  44.1 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   283 MBytes   476 Mbits/sec  1270             sender
[SUM]   0.00-5.01   sec   278 MBytes   465 Mbits/sec                  receiver

iperf Done.

Step 8: Run command interfaces ethernet show counters at DUT0 and check if 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         34353   2336430          0      101877  154199645          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         36628   2486146          0      101638  153831008          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 eth0p1 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 eth2 bridge-group bridge br0
set interfaces ethernet eth3 bridge-group bridge br0
set system login user admin authentication encrypted-password '$6$GSjsCj8gHLv$/VcqU6FLi6CT2Oxn0MJQ2C2tqnRDrYKNF8HIYWJp68nvXvPdFccDsT04.WtigUONbKYrgKg8d6rEs8PjljMkH0'

Step 3: Run command interfaces bonding show at DUT0 and check if 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:fe16:15/64

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

Bonding Mode: load balancing (round-robin)
Show output
Ethernet Channel Bonding Driver: v6.12.20

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: eth0p1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 02:a0:26:16:00:15
Slave queue ID: 0

Slave Interface: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:16:00:15
Slave queue ID: 0

Step 5: Ping 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=0.611 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.611/0.611/0.611/0.000 ms

Step 6: Run command interfaces ethernet clear at 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 this output in DUT0:
Connecting to host 192.168.100.20, port 5001
[  5] local 192.168.100.10 port 39738 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 39752 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 39760 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 39770 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 39774 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 39780 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 39792 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 39798 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 39800 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 39808 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  10.0 MBytes  83.9 Mbits/sec   73   48.1 KBytes
[  7]   0.00-1.00   sec  6.43 MBytes  53.9 Mbits/sec   37   41.0 KBytes
[  9]   0.00-1.00   sec  42.4 MBytes   355 Mbits/sec  341   86.3 KBytes
[ 11]   0.00-1.00   sec  6.36 MBytes  53.4 Mbits/sec   48   25.5 KBytes
[ 13]   0.00-1.00   sec  5.57 MBytes  46.7 Mbits/sec   32   46.7 KBytes
[ 15]   0.00-1.00   sec  5.41 MBytes  45.3 Mbits/sec   44   41.0 KBytes
[ 17]   0.00-1.00   sec  5.85 MBytes  49.1 Mbits/sec   59   24.0 KBytes
[ 19]   0.00-1.00   sec  5.91 MBytes  49.6 Mbits/sec   45   52.3 KBytes
[ 21]   0.00-1.00   sec  6.65 MBytes  55.8 Mbits/sec   42   41.0 KBytes
[ 23]   0.00-1.00   sec  10.5 MBytes  88.2 Mbits/sec   51   48.1 KBytes
[SUM]   0.00-1.00   sec   105 MBytes   881 Mbits/sec  772
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  4.72 MBytes  39.6 Mbits/sec   15   55.1 KBytes
[  7]   1.00-2.00   sec  6.52 MBytes  54.7 Mbits/sec    7   69.3 KBytes
[  9]   1.00-2.00   sec  7.50 MBytes  62.9 Mbits/sec   22   19.8 KBytes
[ 11]   1.00-2.00   sec  4.85 MBytes  40.7 Mbits/sec   15   38.2 KBytes
[ 13]   1.00-2.00   sec  5.90 MBytes  49.5 Mbits/sec   22   36.8 KBytes
[ 15]   1.00-2.00   sec  7.58 MBytes  63.6 Mbits/sec   14   59.4 KBytes
[ 17]   1.00-2.00   sec  6.77 MBytes  56.8 Mbits/sec    8   73.5 KBytes
[ 19]   1.00-2.00   sec  6.21 MBytes  52.1 Mbits/sec   25   25.5 KBytes
[ 21]   1.00-2.00   sec  7.77 MBytes  65.2 Mbits/sec   17   55.1 KBytes
[ 23]   1.00-2.00   sec  5.22 MBytes  43.8 Mbits/sec   22   50.9 KBytes
[SUM]   1.00-2.00   sec  63.1 MBytes   529 Mbits/sec  167
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  7.39 MBytes  62.0 Mbits/sec    7   56.6 KBytes
[  7]   2.00-3.00   sec  7.89 MBytes  66.2 Mbits/sec   19   43.8 KBytes
[  9]   2.00-3.00   sec  5.00 MBytes  41.9 Mbits/sec   12   56.6 KBytes
[ 11]   2.00-3.00   sec  6.15 MBytes  51.6 Mbits/sec   23   76.4 KBytes
[ 13]   2.00-3.00   sec  6.03 MBytes  50.6 Mbits/sec   20   56.6 KBytes
[ 15]   2.00-3.00   sec  4.97 MBytes  41.7 Mbits/sec   29   33.9 KBytes
[ 17]   2.00-3.00   sec  5.59 MBytes  46.9 Mbits/sec   29   46.7 KBytes
[ 19]   2.00-3.00   sec  5.84 MBytes  49.0 Mbits/sec   29   49.5 KBytes
[ 21]   2.00-3.00   sec  5.47 MBytes  45.9 Mbits/sec   54   62.2 KBytes
[ 23]   2.00-3.00   sec  6.77 MBytes  56.8 Mbits/sec   16   59.4 KBytes
[SUM]   2.00-3.00   sec  61.1 MBytes   513 Mbits/sec  238
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  7.21 MBytes  60.5 Mbits/sec   18   79.2 KBytes
[  7]   3.00-4.00   sec  5.78 MBytes  48.5 Mbits/sec   16   53.7 KBytes
[  9]   3.00-4.00   sec  5.00 MBytes  41.9 Mbits/sec   26   35.4 KBytes
[ 11]   3.00-4.00   sec  6.65 MBytes  55.8 Mbits/sec   22   41.0 KBytes
[ 13]   3.00-4.00   sec  8.26 MBytes  69.3 Mbits/sec   18   72.1 KBytes
[ 15]   3.00-4.00   sec  7.27 MBytes  61.0 Mbits/sec   28   53.7 KBytes
[ 17]   3.00-4.00   sec  6.71 MBytes  56.3 Mbits/sec    7   53.7 KBytes
[ 19]   3.00-4.00   sec  7.27 MBytes  61.0 Mbits/sec   12   86.3 KBytes
[ 21]   3.00-4.00   sec  6.34 MBytes  53.2 Mbits/sec   27   63.6 KBytes
[ 23]   3.00-4.00   sec  4.60 MBytes  38.6 Mbits/sec   24   33.9 KBytes
[SUM]   3.00-4.00   sec  65.1 MBytes   546 Mbits/sec  198
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  6.52 MBytes  54.7 Mbits/sec   32   62.2 KBytes
[  7]   4.00-5.00   sec  6.84 MBytes  57.3 Mbits/sec   21   32.5 KBytes
[  9]   4.00-5.00   sec  5.00 MBytes  41.9 Mbits/sec   12   62.2 KBytes
[ 11]   4.00-5.00   sec  6.09 MBytes  51.1 Mbits/sec   28   53.7 KBytes
[ 13]   4.00-5.00   sec  7.52 MBytes  63.1 Mbits/sec   17   65.0 KBytes
[ 15]   4.00-5.00   sec  5.28 MBytes  44.3 Mbits/sec   23   17.0 KBytes
[ 17]   4.00-5.00   sec  5.97 MBytes  50.0 Mbits/sec   22   46.7 KBytes
[ 19]   4.00-5.00   sec  7.02 MBytes  58.9 Mbits/sec   15   39.6 KBytes
[ 21]   4.00-5.00   sec  6.90 MBytes  57.9 Mbits/sec   23   43.8 KBytes
[ 23]   4.00-5.00   sec  4.47 MBytes  37.5 Mbits/sec   16   31.1 KBytes
[SUM]   4.00-5.00   sec  61.6 MBytes   517 Mbits/sec  209
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  35.8 MBytes  60.1 Mbits/sec  145             sender
[  5]   0.00-5.01   sec  35.4 MBytes  59.4 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  33.5 MBytes  56.1 Mbits/sec  100             sender
[  7]   0.00-5.01   sec  32.9 MBytes  55.1 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  64.9 MBytes   109 Mbits/sec  413             sender
[  9]   0.00-5.01   sec  61.5 MBytes   103 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  30.1 MBytes  50.5 Mbits/sec  136             sender
[ 11]   0.00-5.01   sec  29.7 MBytes  49.8 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  33.3 MBytes  55.8 Mbits/sec  109             sender
[ 13]   0.00-5.01   sec  32.9 MBytes  55.1 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  30.5 MBytes  51.2 Mbits/sec  138             sender
[ 15]   0.00-5.01   sec  30.1 MBytes  50.4 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  30.9 MBytes  51.8 Mbits/sec  125             sender
[ 17]   0.00-5.01   sec  30.5 MBytes  51.1 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  32.3 MBytes  54.1 Mbits/sec  126             sender
[ 19]   0.00-5.01   sec  31.8 MBytes  53.2 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  33.1 MBytes  55.6 Mbits/sec  163             sender
[ 21]   0.00-5.01   sec  32.7 MBytes  54.7 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  31.6 MBytes  53.0 Mbits/sec  129             sender
[ 23]   0.00-5.01   sec  31.1 MBytes  52.1 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   356 MBytes   597 Mbits/sec  1584             sender
[SUM]   0.00-5.01   sec   349 MBytes   584 Mbits/sec                  receiver

iperf Done.

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

eth0p0 \s+up\s+\d+\s+\d+\s+0\s+\d{2,}
eth0p1 \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         42910   2905405          0      128040  193813989          0
eth0p1  up         40122   2722332          0      126320  191215912          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  down           0         0          0           0          0          0
  eth2  down           0         0          0           0          0          0