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:c9/64

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: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:18:00:c9
Slave queue ID: 0

Slave Interface: eth1
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 1
Permanent HW addr: 00:a0:26:18:00:ca
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=344 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 343.741/343.741/343.741/0.000 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 52318 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 52324 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 52338 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 52344 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 52346 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 52348 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 52364 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 52374 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 52384 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 52388 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  14.9 MBytes   125 Mbits/sec  173   74.9 KBytes
[  7]   0.00-1.00   sec  10.9 MBytes  91.2 Mbits/sec   28   79.2 KBytes
[  9]   0.00-1.00   sec  12.1 MBytes   101 Mbits/sec   13   62.2 KBytes
[ 11]   0.00-1.00   sec  10.7 MBytes  89.4 Mbits/sec   21   1.41 KBytes
[ 13]   0.00-1.00   sec  13.5 MBytes   113 Mbits/sec   22   77.8 KBytes
[ 15]   0.00-1.00   sec  10.5 MBytes  87.9 Mbits/sec   18   89.1 KBytes
[ 17]   0.00-1.00   sec  13.8 MBytes   116 Mbits/sec   18   72.1 KBytes
[ 19]   0.00-1.00   sec  8.70 MBytes  73.0 Mbits/sec   10   76.4 KBytes
[ 21]   0.00-1.00   sec  11.2 MBytes  94.3 Mbits/sec   26   90.5 KBytes
[ 23]   0.00-1.00   sec  9.58 MBytes  80.3 Mbits/sec   22   66.5 KBytes
[SUM]   0.00-1.00   sec   116 MBytes   971 Mbits/sec  351
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  11.2 MBytes  94.3 Mbits/sec   15   69.3 KBytes
[  7]   1.00-2.00   sec  12.4 MBytes   104 Mbits/sec   48   53.7 KBytes
[  9]   1.00-2.00   sec  9.07 MBytes  76.1 Mbits/sec   45   59.4 KBytes
[ 11]   1.00-2.00   sec  10.7 MBytes  89.7 Mbits/sec   18   52.3 KBytes
[ 13]   1.00-2.00   sec  12.2 MBytes   102 Mbits/sec   31   84.8 KBytes
[ 15]   1.00-2.00   sec  12.6 MBytes   105 Mbits/sec   37   86.3 KBytes
[ 17]   1.00-2.00   sec  11.0 MBytes  92.3 Mbits/sec   46   80.6 KBytes
[ 19]   1.00-2.00   sec  9.70 MBytes  81.4 Mbits/sec   19   76.4 KBytes
[ 21]   1.00-2.00   sec  12.3 MBytes   103 Mbits/sec   57   46.7 KBytes
[ 23]   1.00-2.00   sec  10.9 MBytes  91.2 Mbits/sec   56   86.3 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   940 Mbits/sec  372
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  11.3 MBytes  94.9 Mbits/sec   40   53.7 KBytes
[  7]   2.00-3.00   sec  12.1 MBytes   101 Mbits/sec   22   60.8 KBytes
[  9]   2.00-3.00   sec  10.3 MBytes  86.0 Mbits/sec   53   56.6 KBytes
[ 11]   2.00-3.00   sec  9.95 MBytes  83.5 Mbits/sec   34   53.7 KBytes
[ 13]   2.00-3.00   sec  11.0 MBytes  92.3 Mbits/sec   19   67.9 KBytes
[ 15]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   44   74.9 KBytes
[ 17]   2.00-3.00   sec  11.6 MBytes  97.0 Mbits/sec   18   59.4 KBytes
[ 19]   2.00-3.00   sec  10.4 MBytes  87.1 Mbits/sec   37   49.5 KBytes
[ 21]   2.00-3.00   sec  8.95 MBytes  75.1 Mbits/sec   39   42.4 KBytes
[ 23]   2.00-3.00   sec  14.4 MBytes   121 Mbits/sec   25   59.4 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   942 Mbits/sec  331
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  9.51 MBytes  79.8 Mbits/sec   30   24.0 KBytes
[  7]   3.00-4.00   sec  9.82 MBytes  82.4 Mbits/sec   25   45.2 KBytes
[  9]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   31   49.5 KBytes
[ 11]   3.00-4.00   sec  7.95 MBytes  66.7 Mbits/sec   24   58.0 KBytes
[ 13]   3.00-4.00   sec  13.9 MBytes   117 Mbits/sec    8   91.9 KBytes
[ 15]   3.00-4.00   sec  13.3 MBytes   112 Mbits/sec   14    110 KBytes
[ 17]   3.00-4.00   sec  14.0 MBytes   118 Mbits/sec   19   79.2 KBytes
[ 19]   3.00-4.00   sec  12.3 MBytes   103 Mbits/sec    7   55.1 KBytes
[ 21]   3.00-4.00   sec  8.51 MBytes  71.4 Mbits/sec   20   31.1 KBytes
[ 23]   3.00-4.00   sec  14.2 MBytes   119 Mbits/sec   19   76.4 KBytes
[SUM]   3.00-4.00   sec   113 MBytes   944 Mbits/sec  197
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  9.57 MBytes  80.3 Mbits/sec   10   93.3 KBytes
[  7]   4.00-5.00   sec  9.01 MBytes  75.6 Mbits/sec   19   72.1 KBytes
[  9]   4.00-5.00   sec  9.32 MBytes  78.2 Mbits/sec   23   72.1 KBytes
[ 11]   4.00-5.00   sec  10.6 MBytes  88.6 Mbits/sec   24   46.7 KBytes
[ 13]   4.00-5.00   sec  13.3 MBytes   112 Mbits/sec    7    117 KBytes
[ 15]   4.00-5.00   sec  12.3 MBytes   103 Mbits/sec   25   97.6 KBytes
[ 17]   4.00-5.00   sec  13.5 MBytes   114 Mbits/sec   16   66.5 KBytes
[ 19]   4.00-5.00   sec  13.0 MBytes   109 Mbits/sec    5    109 KBytes
[ 21]   4.00-5.00   sec  8.95 MBytes  75.1 Mbits/sec   25   80.6 KBytes
[ 23]   4.00-5.00   sec  11.7 MBytes  98.0 Mbits/sec   20   70.7 KBytes
[SUM]   4.00-5.00   sec   111 MBytes   934 Mbits/sec  174
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  56.5 MBytes  94.8 Mbits/sec  268             sender
[  5]   0.00-5.01   sec  56.0 MBytes  93.8 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  54.2 MBytes  90.9 Mbits/sec  142             sender
[  7]   0.00-5.01   sec  53.7 MBytes  90.0 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  49.7 MBytes  83.4 Mbits/sec  165             sender
[  9]   0.00-5.01   sec  49.3 MBytes  82.6 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  49.8 MBytes  83.6 Mbits/sec  121             sender
[ 11]   0.00-5.01   sec  49.3 MBytes  82.6 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  63.9 MBytes   107 Mbits/sec   87             sender
[ 13]   0.00-5.01   sec  63.5 MBytes   106 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  61.1 MBytes   102 Mbits/sec  138             sender
[ 15]   0.00-5.01   sec  60.7 MBytes   102 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  63.9 MBytes   107 Mbits/sec  117             sender
[ 17]   0.00-5.01   sec  63.5 MBytes   106 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  54.1 MBytes  90.8 Mbits/sec   78             sender
[ 19]   0.00-5.01   sec  53.5 MBytes  89.7 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  50.0 MBytes  83.8 Mbits/sec  167             sender
[ 21]   0.00-5.01   sec  49.6 MBytes  83.0 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  60.7 MBytes   102 Mbits/sec  142             sender
[ 23]   0.00-5.01   sec  60.3 MBytes   101 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   564 MBytes   946 Mbits/sec  1425             sender
[SUM]   0.00-5.01   sec   559 MBytes   937 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         85727   5902533          0      203171  307533628          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         76288   5267110          0      204054  308865620          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::2a0:26ff:fe18:c9/64

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: eth0p0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:a0:26:18:00:c9
Slave queue ID: 0

Slave Interface: eth0p4
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 02:a0:26:18:00:cc
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=344 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 343.731/343.731/343.731/0.000 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 50366 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 50370 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 50374 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 50390 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 50404 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 50420 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 50422 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 50428 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 50444 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 50458 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  10.2 MBytes  85.4 Mbits/sec   37   70.7 KBytes
[  7]   0.00-1.00   sec  12.3 MBytes   103 Mbits/sec  108   56.6 KBytes
[  9]   0.00-1.00   sec  13.7 MBytes   115 Mbits/sec   43   66.5 KBytes
[ 11]   0.00-1.00   sec  13.2 MBytes   111 Mbits/sec   35   62.2 KBytes
[ 13]   0.00-1.00   sec  14.6 MBytes   123 Mbits/sec   22   56.6 KBytes
[ 15]   0.00-1.00   sec  10.7 MBytes  90.0 Mbits/sec   27   53.7 KBytes
[ 17]   0.00-1.00   sec  10.9 MBytes  91.5 Mbits/sec   22   72.1 KBytes
[ 19]   0.00-1.00   sec  11.7 MBytes  98.3 Mbits/sec   34   63.6 KBytes
[ 21]   0.00-1.00   sec  9.23 MBytes  77.4 Mbits/sec   24   62.2 KBytes
[ 23]   0.00-1.00   sec  10.7 MBytes  90.0 Mbits/sec  160   62.2 KBytes
[SUM]   0.00-1.00   sec   117 MBytes   984 Mbits/sec  512
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  10.9 MBytes  91.7 Mbits/sec   20   31.1 KBytes
[  7]   1.00-2.00   sec  11.6 MBytes  97.5 Mbits/sec   32   67.9 KBytes
[  9]   1.00-2.00   sec  10.3 MBytes  86.0 Mbits/sec   19   46.7 KBytes
[ 11]   1.00-2.00   sec  12.9 MBytes   108 Mbits/sec   15   89.1 KBytes
[ 13]   1.00-2.00   sec  8.58 MBytes  71.9 Mbits/sec   22   65.0 KBytes
[ 15]   1.00-2.00   sec  11.2 MBytes  94.3 Mbits/sec   20   70.7 KBytes
[ 17]   1.00-2.00   sec  12.3 MBytes   103 Mbits/sec   22   77.8 KBytes
[ 19]   1.00-2.00   sec  12.2 MBytes   103 Mbits/sec   21   46.7 KBytes
[ 21]   1.00-2.00   sec  11.7 MBytes  98.5 Mbits/sec   25   69.3 KBytes
[ 23]   1.00-2.00   sec  10.4 MBytes  87.6 Mbits/sec   45   39.6 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   941 Mbits/sec  241
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  9.45 MBytes  79.2 Mbits/sec   15   58.0 KBytes
[  7]   2.00-3.00   sec  10.4 MBytes  87.1 Mbits/sec   28   65.0 KBytes
[  9]   2.00-3.00   sec  12.1 MBytes   101 Mbits/sec   22   83.4 KBytes
[ 11]   2.00-3.00   sec  11.6 MBytes  97.0 Mbits/sec   32   29.7 KBytes
[ 13]   2.00-3.00   sec  11.3 MBytes  94.9 Mbits/sec   20   50.9 KBytes
[ 15]   2.00-3.00   sec  12.9 MBytes   108 Mbits/sec   31   69.3 KBytes
[ 17]   2.00-3.00   sec  12.9 MBytes   108 Mbits/sec   17   72.1 KBytes
[ 19]   2.00-3.00   sec  10.1 MBytes  85.0 Mbits/sec   11   55.1 KBytes
[ 21]   2.00-3.00   sec  12.1 MBytes   101 Mbits/sec   30   67.9 KBytes
[ 23]   2.00-3.00   sec  8.26 MBytes  69.3 Mbits/sec   41   42.4 KBytes
[SUM]   2.00-3.00   sec   111 MBytes   931 Mbits/sec  247
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  10.6 MBytes  88.6 Mbits/sec   22   46.7 KBytes
[  7]   3.00-4.00   sec  13.8 MBytes   116 Mbits/sec   24   82.0 KBytes
[  9]   3.00-4.00   sec  10.3 MBytes  86.5 Mbits/sec   25   52.3 KBytes
[ 11]   3.00-4.00   sec  9.07 MBytes  76.1 Mbits/sec   25   45.2 KBytes
[ 13]   3.00-4.00   sec  11.4 MBytes  95.4 Mbits/sec   31   70.7 KBytes
[ 15]   3.00-4.00   sec  11.3 MBytes  94.9 Mbits/sec   28   59.4 KBytes
[ 17]   3.00-4.00   sec  12.7 MBytes   107 Mbits/sec   14   73.5 KBytes
[ 19]   3.00-4.00   sec  12.4 MBytes   104 Mbits/sec   17   59.4 KBytes
[ 21]   3.00-4.00   sec  11.1 MBytes  92.8 Mbits/sec   25   94.7 KBytes
[ 23]   3.00-4.00   sec  10.0 MBytes  83.9 Mbits/sec   59   65.0 KBytes
[SUM]   3.00-4.00   sec   113 MBytes   945 Mbits/sec  270
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  10.0 MBytes  83.9 Mbits/sec   20   53.7 KBytes
[  7]   4.00-5.00   sec  13.5 MBytes   113 Mbits/sec   21   82.0 KBytes
[  9]   4.00-5.00   sec  10.3 MBytes  86.5 Mbits/sec   25   53.7 KBytes
[ 11]   4.00-5.00   sec  10.5 MBytes  88.1 Mbits/sec   22   58.0 KBytes
[ 13]   4.00-5.00   sec  12.8 MBytes   107 Mbits/sec   21   70.7 KBytes
[ 15]   4.00-5.00   sec  12.8 MBytes   107 Mbits/sec   13   72.1 KBytes
[ 17]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   13   62.2 KBytes
[ 19]   4.00-5.00   sec  9.82 MBytes  82.4 Mbits/sec   14   72.1 KBytes
[ 21]   4.00-5.00   sec  9.14 MBytes  76.7 Mbits/sec   16   39.6 KBytes
[ 23]   4.00-5.00   sec  10.9 MBytes  91.2 Mbits/sec   28   46.7 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   939 Mbits/sec  193
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  51.1 MBytes  85.8 Mbits/sec  114             sender
[  5]   0.00-5.01   sec  50.8 MBytes  85.1 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  61.5 MBytes   103 Mbits/sec  213             sender
[  7]   0.00-5.01   sec  60.5 MBytes   101 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  56.7 MBytes  95.0 Mbits/sec  134             sender
[  9]   0.00-5.01   sec  56.2 MBytes  94.3 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  57.2 MBytes  95.9 Mbits/sec  129             sender
[ 11]   0.00-5.01   sec  56.9 MBytes  95.3 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  58.7 MBytes  98.5 Mbits/sec  116             sender
[ 13]   0.00-5.01   sec  58.1 MBytes  97.4 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  59.0 MBytes  99.0 Mbits/sec  119             sender
[ 15]   0.00-5.01   sec  58.5 MBytes  98.1 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  61.0 MBytes   102 Mbits/sec   88             sender
[ 17]   0.00-5.01   sec  60.6 MBytes   102 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  56.3 MBytes  94.4 Mbits/sec   97             sender
[ 19]   0.00-5.01   sec  55.9 MBytes  93.6 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  53.2 MBytes  89.3 Mbits/sec  120             sender
[ 21]   0.00-5.01   sec  52.8 MBytes  88.5 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  50.3 MBytes  84.4 Mbits/sec  333             sender
[ 23]   0.00-5.01   sec  49.4 MBytes  82.7 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   565 MBytes   948 Mbits/sec  1463             sender
[SUM]   0.00-5.01   sec   560 MBytes   938 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         84127   5748029          0      204019  308850417          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         94074   6416146          0      203217  307636508          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