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=0.675 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.675/0.675/0.675/0.000 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 37174 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 37176 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 37192 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 37206 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 37222 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 37234 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 37250 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 37260 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 37270 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 37278 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  10.2 MBytes  85.3 Mbits/sec    8    113 KBytes
[  7]   0.00-1.00   sec  18.1 MBytes   152 Mbits/sec   27    120 KBytes
[  9]   0.00-1.00   sec  10.9 MBytes  91.0 Mbits/sec   12   99.0 KBytes
[ 11]   0.00-1.00   sec  8.80 MBytes  73.8 Mbits/sec   21   91.9 KBytes
[ 13]   0.00-1.00   sec  10.4 MBytes  87.6 Mbits/sec   28   77.8 KBytes
[ 15]   0.00-1.00   sec  14.3 MBytes   120 Mbits/sec   23   82.0 KBytes
[ 17]   0.00-1.00   sec  12.5 MBytes   105 Mbits/sec   19   90.5 KBytes
[ 19]   0.00-1.00   sec  11.1 MBytes  93.0 Mbits/sec   21   55.1 KBytes
[ 21]   0.00-1.00   sec  11.4 MBytes  95.5 Mbits/sec   25   86.3 KBytes
[ 23]   0.00-1.00   sec  10.1 MBytes  84.9 Mbits/sec   30   60.8 KBytes
[SUM]   0.00-1.00   sec   118 MBytes   988 Mbits/sec  214
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  11.5 MBytes  96.4 Mbits/sec   11   67.9 KBytes
[  7]   1.00-2.00   sec  14.9 MBytes   125 Mbits/sec   24   83.4 KBytes
[  9]   1.00-2.00   sec  11.2 MBytes  93.8 Mbits/sec   34   59.4 KBytes
[ 11]   1.00-2.00   sec  10.9 MBytes  91.7 Mbits/sec    4    120 KBytes
[ 13]   1.00-2.00   sec  9.69 MBytes  81.3 Mbits/sec   10   80.6 KBytes
[ 15]   1.00-2.00   sec  9.94 MBytes  83.4 Mbits/sec   11   83.4 KBytes
[ 17]   1.00-2.00   sec  11.5 MBytes  96.4 Mbits/sec    8    109 KBytes
[ 19]   1.00-2.00   sec  8.76 MBytes  73.5 Mbits/sec   23   67.9 KBytes
[ 21]   1.00-2.00   sec  16.7 MBytes   140 Mbits/sec   13    177 KBytes
[ 23]   1.00-2.00   sec  7.39 MBytes  62.0 Mbits/sec   12   97.6 KBytes
[SUM]   1.00-2.00   sec   113 MBytes   944 Mbits/sec  150
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  8.64 MBytes  72.5 Mbits/sec   39   80.6 KBytes
[  7]   2.00-3.00   sec  14.6 MBytes   122 Mbits/sec   38    120 KBytes
[  9]   2.00-3.00   sec  10.1 MBytes  85.0 Mbits/sec   17    126 KBytes
[ 11]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec   18    103 KBytes
[ 13]   2.00-3.00   sec  11.8 MBytes  99.0 Mbits/sec   27   91.9 KBytes
[ 15]   2.00-3.00   sec  11.2 MBytes  93.8 Mbits/sec    8    107 KBytes
[ 17]   2.00-3.00   sec  9.01 MBytes  75.6 Mbits/sec   15   56.6 KBytes
[ 19]   2.00-3.00   sec  10.3 MBytes  86.0 Mbits/sec   20   59.4 KBytes
[ 21]   2.00-3.00   sec  15.5 MBytes   130 Mbits/sec   37   82.0 KBytes
[ 23]   2.00-3.00   sec  9.76 MBytes  81.8 Mbits/sec   26   79.2 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   940 Mbits/sec  245
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  10.8 MBytes  90.2 Mbits/sec    9   93.3 KBytes
[  7]   3.00-4.00   sec  9.69 MBytes  81.3 Mbits/sec   35   59.4 KBytes
[  9]   3.00-4.00   sec  15.6 MBytes   131 Mbits/sec   14    124 KBytes
[ 11]   3.00-4.00   sec  12.1 MBytes   102 Mbits/sec   10   83.4 KBytes
[ 13]   3.00-4.00   sec  9.07 MBytes  76.1 Mbits/sec   18   43.8 KBytes
[ 15]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec   29   46.7 KBytes
[ 17]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec   13   84.8 KBytes
[ 19]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec    9   79.2 KBytes
[ 21]   3.00-4.00   sec  12.4 MBytes   104 Mbits/sec   12    137 KBytes
[ 23]   3.00-4.00   sec  12.5 MBytes   105 Mbits/sec    1    147 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   939 Mbits/sec  150
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  10.8 MBytes  90.2 Mbits/sec   15   82.0 KBytes
[  7]   4.00-5.00   sec  8.70 MBytes  73.0 Mbits/sec   26   43.8 KBytes
[  9]   4.00-5.00   sec  17.0 MBytes   142 Mbits/sec    2    163 KBytes
[ 11]   4.00-5.00   sec  8.08 MBytes  67.8 Mbits/sec   50   33.9 KBytes
[ 13]   4.00-5.00   sec  7.77 MBytes  65.2 Mbits/sec   18   89.1 KBytes
[ 15]   4.00-5.00   sec  4.66 MBytes  39.1 Mbits/sec   24   45.2 KBytes
[ 17]   4.00-5.00   sec  14.4 MBytes   121 Mbits/sec   23    124 KBytes
[ 19]   4.00-5.00   sec  14.4 MBytes   120 Mbits/sec   22   86.3 KBytes
[ 21]   4.00-5.00   sec  13.9 MBytes   116 Mbits/sec   59   99.0 KBytes
[ 23]   4.00-5.00   sec  12.6 MBytes   105 Mbits/sec   68    112 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   940 Mbits/sec  307
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  51.8 MBytes  86.9 Mbits/sec   82             sender
[  5]   0.00-5.01   sec  51.3 MBytes  85.9 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  66.0 MBytes   111 Mbits/sec  150             sender
[  7]   0.00-5.01   sec  65.2 MBytes   109 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  64.7 MBytes   109 Mbits/sec   79             sender
[  9]   0.00-5.01   sec  64.1 MBytes   107 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  51.1 MBytes  85.8 Mbits/sec  103             sender
[ 11]   0.00-5.01   sec  50.4 MBytes  84.5 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  48.8 MBytes  81.8 Mbits/sec  101             sender
[ 13]   0.00-5.01   sec  48.3 MBytes  80.9 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  50.0 MBytes  83.9 Mbits/sec   95             sender
[ 15]   0.00-5.01   sec  49.3 MBytes  82.6 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  57.4 MBytes  96.3 Mbits/sec   78             sender
[ 17]   0.00-5.01   sec  56.6 MBytes  94.9 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  54.4 MBytes  91.3 Mbits/sec   95             sender
[ 19]   0.00-5.01   sec  53.6 MBytes  89.7 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  69.8 MBytes   117 Mbits/sec  146             sender
[ 21]   0.00-5.01   sec  68.9 MBytes   115 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  52.3 MBytes  87.8 Mbits/sec  137             sender
[ 23]   0.00-5.01   sec  51.5 MBytes  86.3 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   566 MBytes   950 Mbits/sec  1066             sender
[SUM]   0.00-5.01   sec   559 MBytes   937 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         68083   4579247          0      204183  309102801          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         68062   4584856          0      202809  307015479          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=0.613 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.613/0.613/0.613/0.000 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 52952 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 52962 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 52978 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 52982 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 52990 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 53006 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 53018 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 53030 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 53036 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 53050 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  31.8 MBytes   267 Mbits/sec   60   77.8 KBytes
[  7]   0.00-1.00   sec  6.08 MBytes  51.0 Mbits/sec   35   41.0 KBytes
[  9]   0.00-1.00   sec  11.7 MBytes  98.3 Mbits/sec   23    105 KBytes
[ 11]   0.00-1.00   sec  22.8 MBytes   191 Mbits/sec   24    214 KBytes
[ 13]   0.00-1.00   sec  6.72 MBytes  56.4 Mbits/sec   14   76.4 KBytes
[ 15]   0.00-1.00   sec  8.43 MBytes  70.7 Mbits/sec   12   67.9 KBytes
[ 17]   0.00-1.00   sec  6.64 MBytes  55.7 Mbits/sec   14   39.6 KBytes
[ 19]   0.00-1.00   sec  9.32 MBytes  78.2 Mbits/sec   12    107 KBytes
[ 21]   0.00-1.00   sec  8.43 MBytes  70.7 Mbits/sec   20   96.2 KBytes
[ 23]   0.00-1.00   sec  6.61 MBytes  55.4 Mbits/sec   11   72.1 KBytes
[SUM]   0.00-1.00   sec   119 MBytes   995 Mbits/sec  225
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  10.9 MBytes  91.7 Mbits/sec    3    110 KBytes
[  7]   1.00-2.00   sec  8.45 MBytes  70.9 Mbits/sec   20   73.5 KBytes
[  9]   1.00-2.00   sec  15.4 MBytes   129 Mbits/sec    7    105 KBytes
[ 11]   1.00-2.00   sec  23.4 MBytes   196 Mbits/sec   21    119 KBytes
[ 13]   1.00-2.00   sec  10.3 MBytes  86.5 Mbits/sec   13    107 KBytes
[ 15]   1.00-2.00   sec  10.6 MBytes  88.6 Mbits/sec   12   93.3 KBytes
[ 17]   1.00-2.00   sec  7.64 MBytes  64.1 Mbits/sec    5   87.7 KBytes
[ 19]   1.00-2.00   sec  8.26 MBytes  69.3 Mbits/sec   22   63.6 KBytes
[ 21]   1.00-2.00   sec  9.69 MBytes  81.3 Mbits/sec   17   66.5 KBytes
[ 23]   1.00-2.00   sec  8.58 MBytes  71.9 Mbits/sec   21   72.1 KBytes
[SUM]   1.00-2.00   sec   113 MBytes   950 Mbits/sec  141
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  15.9 MBytes   133 Mbits/sec   20    100 KBytes
[  7]   2.00-3.00   sec  8.02 MBytes  67.2 Mbits/sec   17   58.0 KBytes
[  9]   2.00-3.00   sec  10.8 MBytes  90.7 Mbits/sec   43   94.7 KBytes
[ 11]   2.00-3.00   sec  15.6 MBytes   131 Mbits/sec   36    112 KBytes
[ 13]   2.00-3.00   sec  16.1 MBytes   135 Mbits/sec   37   94.7 KBytes
[ 15]   2.00-3.00   sec  11.6 MBytes  97.5 Mbits/sec    9    115 KBytes
[ 17]   2.00-3.00   sec  7.71 MBytes  64.6 Mbits/sec   25   69.3 KBytes
[ 19]   2.00-3.00   sec  8.76 MBytes  73.5 Mbits/sec    6   66.5 KBytes
[ 21]   2.00-3.00   sec  8.45 MBytes  70.9 Mbits/sec   11   80.6 KBytes
[ 23]   2.00-3.00   sec  8.45 MBytes  70.9 Mbits/sec   15   73.5 KBytes
[SUM]   2.00-3.00   sec   111 MBytes   935 Mbits/sec  219
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  8.95 MBytes  75.1 Mbits/sec   33   38.2 KBytes
[  7]   3.00-4.00   sec  10.8 MBytes  90.2 Mbits/sec   40    103 KBytes
[  9]   3.00-4.00   sec  10.9 MBytes  91.2 Mbits/sec   62   82.0 KBytes
[ 11]   3.00-4.00   sec  13.9 MBytes   116 Mbits/sec   54    116 KBytes
[ 13]   3.00-4.00   sec  12.7 MBytes   107 Mbits/sec   23    140 KBytes
[ 15]   3.00-4.00   sec  10.9 MBytes  91.2 Mbits/sec   90   50.9 KBytes
[ 17]   3.00-4.00   sec  10.4 MBytes  87.6 Mbits/sec   43   90.5 KBytes
[ 19]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   68   72.1 KBytes
[ 21]   3.00-4.00   sec  11.6 MBytes  97.0 Mbits/sec   24   65.0 KBytes
[ 23]   3.00-4.00   sec  13.5 MBytes   113 Mbits/sec   34    105 KBytes
[SUM]   3.00-4.00   sec   113 MBytes   944 Mbits/sec  471
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  8.95 MBytes  75.1 Mbits/sec   13   67.9 KBytes
[  7]   4.00-5.00   sec  17.1 MBytes   143 Mbits/sec    9    136 KBytes
[  9]   4.00-5.00   sec  14.8 MBytes   124 Mbits/sec    6    117 KBytes
[ 11]   4.00-5.00   sec  12.1 MBytes   101 Mbits/sec   19   99.0 KBytes
[ 13]   4.00-5.00   sec  12.7 MBytes   107 Mbits/sec   18   73.5 KBytes
[ 15]   4.00-5.00   sec  10.7 MBytes  89.7 Mbits/sec    9    109 KBytes
[ 17]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   12    106 KBytes
[ 19]   4.00-5.00   sec  9.20 MBytes  77.1 Mbits/sec   11   84.8 KBytes
[ 21]   4.00-5.00   sec  8.70 MBytes  73.0 Mbits/sec   19   76.4 KBytes
[ 23]   4.00-5.00   sec  6.09 MBytes  51.1 Mbits/sec   20   65.0 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   943 Mbits/sec  136
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  76.6 MBytes   128 Mbits/sec  129             sender
[  5]   0.00-5.01   sec  73.9 MBytes   124 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  50.4 MBytes  84.5 Mbits/sec  121             sender
[  7]   0.00-5.01   sec  49.8 MBytes  83.4 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  63.6 MBytes   107 Mbits/sec  141             sender
[  9]   0.00-5.01   sec  62.8 MBytes   105 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  87.7 MBytes   147 Mbits/sec  154             sender
[ 11]   0.00-5.01   sec  86.5 MBytes   145 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  58.6 MBytes  98.3 Mbits/sec  105             sender
[ 13]   0.00-5.01   sec  57.9 MBytes  97.0 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  52.2 MBytes  87.5 Mbits/sec  132             sender
[ 15]   0.00-5.01   sec  51.6 MBytes  86.4 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  44.6 MBytes  74.8 Mbits/sec   99             sender
[ 17]   0.00-5.01   sec  44.2 MBytes  74.0 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  44.6 MBytes  74.7 Mbits/sec  119             sender
[ 19]   0.00-5.01   sec  44.0 MBytes  73.7 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  46.8 MBytes  78.6 Mbits/sec   91             sender
[ 21]   0.00-5.01   sec  46.4 MBytes  77.7 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  43.2 MBytes  72.5 Mbits/sec  101             sender
[ 23]   0.00-5.01   sec  42.6 MBytes  71.3 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   568 MBytes   953 Mbits/sec  1192             sender
[SUM]   0.00-5.01   sec   560 MBytes   937 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         65561   4430461          0      203138  307520144          0
eth0p1  up         68927   4653150          0      204078  308940055          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