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:ca/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:ca
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:c9
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=324 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 324.092/324.092/324.092/0.000 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 47032 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 47038 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 47040 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 47056 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 47060 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 47074 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 47080 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 47088 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 47098 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 47100 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  8.10 MBytes  67.9 Mbits/sec   90   87.7 KBytes
[  7]   0.00-1.00   sec  13.2 MBytes   110 Mbits/sec  110   70.7 KBytes
[  9]   0.00-1.00   sec  14.2 MBytes   119 Mbits/sec   25   72.1 KBytes
[ 11]   0.00-1.00   sec  12.9 MBytes   108 Mbits/sec   18   83.4 KBytes
[ 13]   0.00-1.00   sec  8.30 MBytes  69.6 Mbits/sec  253   79.2 KBytes
[ 15]   0.00-1.00   sec  10.1 MBytes  84.6 Mbits/sec   14   58.0 KBytes
[ 17]   0.00-1.00   sec  12.5 MBytes   105 Mbits/sec   14   69.3 KBytes
[ 19]   0.00-1.00   sec  12.3 MBytes   103 Mbits/sec   16   60.8 KBytes
[ 21]   0.00-1.00   sec  12.6 MBytes   106 Mbits/sec   30   76.4 KBytes
[ 23]   0.00-1.00   sec  12.6 MBytes   105 Mbits/sec   14   86.3 KBytes
[SUM]   0.00-1.00   sec   117 MBytes   979 Mbits/sec  584
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  11.4 MBytes  95.9 Mbits/sec   65   48.1 KBytes
[  7]   1.00-2.00   sec  13.1 MBytes   110 Mbits/sec   23   69.3 KBytes
[  9]   1.00-2.00   sec  12.7 MBytes   106 Mbits/sec   45   80.6 KBytes
[ 11]   1.00-2.00   sec  10.9 MBytes  91.7 Mbits/sec   36   74.9 KBytes
[ 13]   1.00-2.00   sec  11.2 MBytes  94.4 Mbits/sec   28   55.1 KBytes
[ 15]   1.00-2.00   sec  10.8 MBytes  90.2 Mbits/sec   28   39.6 KBytes
[ 17]   1.00-2.00   sec  10.0 MBytes  83.9 Mbits/sec   51   52.3 KBytes
[ 19]   1.00-2.00   sec  7.95 MBytes  66.7 Mbits/sec   48   53.7 KBytes
[ 21]   1.00-2.00   sec  13.4 MBytes   113 Mbits/sec   34   73.5 KBytes
[ 23]   1.00-2.00   sec  10.6 MBytes  88.6 Mbits/sec   46   63.6 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   940 Mbits/sec  404
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   14   83.4 KBytes
[  7]   2.00-3.00   sec  11.1 MBytes  92.8 Mbits/sec   14   46.7 KBytes
[  9]   2.00-3.00   sec  11.7 MBytes  98.5 Mbits/sec   39   79.2 KBytes
[ 11]   2.00-3.00   sec  8.51 MBytes  71.4 Mbits/sec   47   63.6 KBytes
[ 13]   2.00-3.00   sec  10.1 MBytes  85.0 Mbits/sec   32   77.8 KBytes
[ 15]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec   30   67.9 KBytes
[ 17]   2.00-3.00   sec  10.8 MBytes  90.2 Mbits/sec   44   58.0 KBytes
[ 19]   2.00-3.00   sec  10.9 MBytes  91.7 Mbits/sec   29   58.0 KBytes
[ 21]   2.00-3.00   sec  12.7 MBytes   107 Mbits/sec   18   82.0 KBytes
[ 23]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   21   80.6 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   938 Mbits/sec  288
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  13.5 MBytes   113 Mbits/sec   11    107 KBytes
[  7]   3.00-4.00   sec  11.7 MBytes  98.5 Mbits/sec   19   63.6 KBytes
[  9]   3.00-4.00   sec  11.1 MBytes  93.3 Mbits/sec   55    102 KBytes
[ 11]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec   35   46.7 KBytes
[ 13]   3.00-4.00   sec  10.7 MBytes  89.7 Mbits/sec   11   89.1 KBytes
[ 15]   3.00-4.00   sec  10.5 MBytes  88.1 Mbits/sec   25   69.3 KBytes
[ 17]   3.00-4.00   sec  9.26 MBytes  77.7 Mbits/sec   19   59.4 KBytes
[ 19]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   24   48.1 KBytes
[ 21]   3.00-4.00   sec  13.0 MBytes   109 Mbits/sec   27   74.9 KBytes
[ 23]   3.00-4.00   sec  11.7 MBytes  98.5 Mbits/sec   17   62.2 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   937 Mbits/sec  243
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  9.49 MBytes  79.6 Mbits/sec   51   56.6 KBytes
[  7]   4.00-5.00   sec  10.5 MBytes  88.1 Mbits/sec   32   72.1 KBytes
[  9]   4.00-5.00   sec  9.63 MBytes  80.8 Mbits/sec   47   62.2 KBytes
[ 11]   4.00-5.00   sec  12.3 MBytes   103 Mbits/sec    7   70.7 KBytes
[ 13]   4.00-5.00   sec  12.1 MBytes   101 Mbits/sec   22   56.6 KBytes
[ 15]   4.00-5.00   sec  10.2 MBytes  85.5 Mbits/sec   29   80.6 KBytes
[ 17]   4.00-5.00   sec  14.0 MBytes   118 Mbits/sec   40   60.8 KBytes
[ 19]   4.00-5.00   sec  10.4 MBytes  87.6 Mbits/sec   21   53.7 KBytes
[ 21]   4.00-5.00   sec  12.8 MBytes   107 Mbits/sec   44   86.3 KBytes
[ 23]   4.00-5.00   sec  10.8 MBytes  90.7 Mbits/sec   17   50.9 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   942 Mbits/sec  310
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  54.9 MBytes  92.2 Mbits/sec  231             sender
[  5]   0.00-5.01   sec  54.0 MBytes  90.5 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  59.6 MBytes   100 Mbits/sec  198             sender
[  7]   0.00-5.01   sec  58.8 MBytes  98.5 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  59.4 MBytes  99.7 Mbits/sec  211             sender
[  9]   0.00-5.01   sec  58.9 MBytes  98.7 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  55.9 MBytes  93.7 Mbits/sec  143             sender
[ 11]   0.00-5.01   sec  55.3 MBytes  92.7 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  52.4 MBytes  87.9 Mbits/sec  346             sender
[ 13]   0.00-5.01   sec  51.4 MBytes  86.1 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  52.7 MBytes  88.4 Mbits/sec  126             sender
[ 15]   0.00-5.01   sec  52.2 MBytes  87.4 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  56.5 MBytes  94.8 Mbits/sec  168             sender
[ 17]   0.00-5.01   sec  56.0 MBytes  93.9 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  50.6 MBytes  85.0 Mbits/sec  138             sender
[ 19]   0.00-5.01   sec  50.3 MBytes  84.2 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  64.6 MBytes   108 Mbits/sec  153             sender
[ 21]   0.00-5.01   sec  64.1 MBytes   107 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  58.1 MBytes  97.4 Mbits/sec  115             sender
[ 23]   0.00-5.01   sec  57.4 MBytes  96.3 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   565 MBytes   947 Mbits/sec  1829             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:

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         83833   5788921          0      203002  307292099          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         78101   5407586          0      203708  308367669          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:cc/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:cc
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:c9
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=356 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 356.167/356.167/356.167/0.000 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 34480 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 34482 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 34488 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 34504 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 34508 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 34516 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 34522 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 34524 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 34528 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 34540 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  10.4 MBytes  86.9 Mbits/sec   77   26.9 KBytes
[  7]   0.00-1.00   sec  14.9 MBytes   125 Mbits/sec   67   56.6 KBytes
[  9]   0.00-1.00   sec  10.7 MBytes  89.8 Mbits/sec   51   36.8 KBytes
[ 11]   0.00-1.00   sec  10.9 MBytes  91.3 Mbits/sec   24   36.8 KBytes
[ 13]   0.00-1.00   sec  11.3 MBytes  95.1 Mbits/sec   50   19.8 KBytes
[ 15]   0.00-1.00   sec  10.2 MBytes  85.8 Mbits/sec   36   62.2 KBytes
[ 17]   0.00-1.00   sec  11.1 MBytes  93.1 Mbits/sec   29   60.8 KBytes
[ 19]   0.00-1.00   sec  11.1 MBytes  93.3 Mbits/sec   68   35.4 KBytes
[ 21]   0.00-1.00   sec  12.3 MBytes   103 Mbits/sec   42   46.7 KBytes
[ 23]   0.00-1.00   sec  10.7 MBytes  89.6 Mbits/sec   29   36.8 KBytes
[SUM]   0.00-1.00   sec   114 MBytes   953 Mbits/sec  473
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  11.6 MBytes  97.5 Mbits/sec   24   77.8 KBytes
[  7]   1.00-2.00   sec  12.4 MBytes   104 Mbits/sec   41   50.9 KBytes
[  9]   1.00-2.00   sec  11.1 MBytes  92.8 Mbits/sec   47   63.6 KBytes
[ 11]   1.00-2.00   sec  9.14 MBytes  76.7 Mbits/sec   29   77.8 KBytes
[ 13]   1.00-2.00   sec  10.5 MBytes  88.1 Mbits/sec   16   67.9 KBytes
[ 15]   1.00-2.00   sec  12.9 MBytes   108 Mbits/sec   59   58.0 KBytes
[ 17]   1.00-2.00   sec  10.5 MBytes  88.1 Mbits/sec   48   80.6 KBytes
[ 19]   1.00-2.00   sec  11.2 MBytes  94.4 Mbits/sec   49   86.3 KBytes
[ 21]   1.00-2.00   sec  10.2 MBytes  85.5 Mbits/sec   47   63.6 KBytes
[ 23]   1.00-2.00   sec  9.45 MBytes  79.2 Mbits/sec   38   72.1 KBytes
[SUM]   1.00-2.00   sec   109 MBytes   914 Mbits/sec  398
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   35   48.1 KBytes
[  7]   2.00-3.00   sec  8.82 MBytes  74.0 Mbits/sec   30   43.8 KBytes
[  9]   2.00-3.00   sec  9.94 MBytes  83.4 Mbits/sec   32   46.7 KBytes
[ 11]   2.00-3.00   sec  11.2 MBytes  94.3 Mbits/sec   42   59.4 KBytes
[ 13]   2.00-3.00   sec  12.5 MBytes   105 Mbits/sec   32   39.6 KBytes
[ 15]   2.00-3.00   sec  11.7 MBytes  98.5 Mbits/sec   38   59.4 KBytes
[ 17]   2.00-3.00   sec  12.4 MBytes   104 Mbits/sec   49   48.1 KBytes
[ 19]   2.00-3.00   sec  12.2 MBytes   102 Mbits/sec   38   62.2 KBytes
[ 21]   2.00-3.00   sec  10.8 MBytes  90.7 Mbits/sec   53   56.6 KBytes
[ 23]   2.00-3.00   sec  9.76 MBytes  81.8 Mbits/sec   38   48.1 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   938 Mbits/sec  387
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  10.8 MBytes  90.7 Mbits/sec   29   87.7 KBytes
[  7]   3.00-4.00   sec  11.6 MBytes  97.0 Mbits/sec   24   50.9 KBytes
[  9]   3.00-4.00   sec  12.4 MBytes   104 Mbits/sec   24   84.8 KBytes
[ 11]   3.00-4.00   sec  10.4 MBytes  87.1 Mbits/sec   39   49.5 KBytes
[ 13]   3.00-4.00   sec  11.7 MBytes  98.0 Mbits/sec   32   56.6 KBytes
[ 15]   3.00-4.00   sec  11.2 MBytes  93.8 Mbits/sec   25   63.6 KBytes
[ 17]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   39   65.0 KBytes
[ 19]   3.00-4.00   sec  13.2 MBytes   111 Mbits/sec   34   39.6 KBytes
[ 21]   3.00-4.00   sec  9.45 MBytes  79.2 Mbits/sec   29   41.0 KBytes
[ 23]   3.00-4.00   sec  12.2 MBytes   103 Mbits/sec   25   70.7 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   939 Mbits/sec  300
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  11.2 MBytes  94.3 Mbits/sec   42   56.6 KBytes
[  7]   4.00-5.00   sec  9.26 MBytes  77.7 Mbits/sec   34   52.3 KBytes
[  9]   4.00-5.00   sec  9.20 MBytes  77.1 Mbits/sec   40   60.8 KBytes
[ 11]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   32   76.4 KBytes
[ 13]   4.00-5.00   sec  11.2 MBytes  93.8 Mbits/sec   18   63.6 KBytes
[ 15]   4.00-5.00   sec  11.9 MBytes  99.6 Mbits/sec   31   50.9 KBytes
[ 17]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   25   48.1 KBytes
[ 19]   4.00-5.00   sec  11.7 MBytes  98.5 Mbits/sec   28   80.6 KBytes
[ 21]   4.00-5.00   sec  12.2 MBytes   103 Mbits/sec   36   84.8 KBytes
[ 23]   4.00-5.00   sec  11.0 MBytes  92.3 Mbits/sec   51   38.2 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   940 Mbits/sec  337
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  56.5 MBytes  94.7 Mbits/sec  207             sender
[  5]   0.00-5.01   sec  55.9 MBytes  93.6 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  57.0 MBytes  95.6 Mbits/sec  196             sender
[  7]   0.00-5.01   sec  56.6 MBytes  94.7 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  53.3 MBytes  89.4 Mbits/sec  194             sender
[  9]   0.00-5.01   sec  52.8 MBytes  88.4 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  53.8 MBytes  90.3 Mbits/sec  166             sender
[ 11]   0.00-5.01   sec  53.2 MBytes  89.1 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  57.2 MBytes  96.0 Mbits/sec  148             sender
[ 13]   0.00-5.01   sec  56.6 MBytes  94.8 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  57.9 MBytes  97.1 Mbits/sec  189             sender
[ 15]   0.00-5.01   sec  57.3 MBytes  96.0 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  55.2 MBytes  92.5 Mbits/sec  190             sender
[ 17]   0.00-5.01   sec  54.7 MBytes  91.6 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  59.5 MBytes  99.9 Mbits/sec  217             sender
[ 19]   0.00-5.01   sec  59.0 MBytes  98.8 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  54.9 MBytes  92.2 Mbits/sec  207             sender
[ 21]   0.00-5.01   sec  54.5 MBytes  91.3 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  53.1 MBytes  89.1 Mbits/sec  181             sender
[ 23]   0.00-5.01   sec  52.5 MBytes  87.9 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   558 MBytes   937 Mbits/sec  1895             sender
[SUM]   0.00-5.01   sec   553 MBytes   926 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         81287   5575641          0      201720  305365658          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         95266   6525625          0      201492  305018308          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