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/topology.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=0.622 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.622/0.622/0.622/0.000 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 42848 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 42850 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 42852 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 42864 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 42870 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 42882 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 42890 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 42904 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 42906 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 42910 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  16.3 MBytes   136 Mbits/sec  119    137 KBytes
[  7]   0.00-1.00   sec  13.7 MBytes   115 Mbits/sec   88    100 KBytes
[  9]   0.00-1.00   sec  10.9 MBytes  91.2 Mbits/sec   67   56.6 KBytes
[ 11]   0.00-1.00   sec  6.69 MBytes  56.1 Mbits/sec   50   65.0 KBytes
[ 13]   0.00-1.00   sec  10.7 MBytes  89.4 Mbits/sec  102   83.4 KBytes
[ 15]   0.00-1.00   sec  8.93 MBytes  74.9 Mbits/sec   74   63.6 KBytes
[ 17]   0.00-1.00   sec  11.9 MBytes   100 Mbits/sec   82    106 KBytes
[ 19]   0.00-1.00   sec  15.7 MBytes   132 Mbits/sec  157   93.3 KBytes
[ 21]   0.00-1.00   sec  10.9 MBytes  91.7 Mbits/sec  106   73.5 KBytes
[ 23]   0.00-1.00   sec  9.86 MBytes  82.7 Mbits/sec   66   93.3 KBytes
[SUM]   0.00-1.00   sec   116 MBytes   970 Mbits/sec  911
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  14.7 MBytes   123 Mbits/sec   71   86.3 KBytes
[  7]   1.00-2.00   sec  12.5 MBytes   105 Mbits/sec   96    100 KBytes
[  9]   1.00-2.00   sec  5.90 MBytes  49.5 Mbits/sec   73   53.7 KBytes
[ 11]   1.00-2.00   sec  9.20 MBytes  77.1 Mbits/sec   31   91.9 KBytes
[ 13]   1.00-2.00   sec  10.5 MBytes  88.1 Mbits/sec   77   69.3 KBytes
[ 15]   1.00-2.00   sec  8.45 MBytes  70.9 Mbits/sec   58   50.9 KBytes
[ 17]   1.00-2.00   sec  10.6 MBytes  89.1 Mbits/sec   69   84.8 KBytes
[ 19]   1.00-2.00   sec  13.1 MBytes   110 Mbits/sec   24    139 KBytes
[ 21]   1.00-2.00   sec  10.4 MBytes  87.6 Mbits/sec   50   60.8 KBytes
[ 23]   1.00-2.00   sec  16.2 MBytes   136 Mbits/sec   90    113 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   936 Mbits/sec  639
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  9.45 MBytes  79.2 Mbits/sec   33   87.7 KBytes
[  7]   2.00-3.00   sec  11.5 MBytes  96.4 Mbits/sec   50   73.5 KBytes
[  9]   2.00-3.00   sec  5.10 MBytes  42.7 Mbits/sec   42   36.8 KBytes
[ 11]   2.00-3.00   sec  15.1 MBytes   127 Mbits/sec   36    120 KBytes
[ 13]   2.00-3.00   sec  12.9 MBytes   108 Mbits/sec   34    103 KBytes
[ 15]   2.00-3.00   sec  8.26 MBytes  69.3 Mbits/sec   26   80.6 KBytes
[ 17]   2.00-3.00   sec  9.26 MBytes  77.7 Mbits/sec   39   76.4 KBytes
[ 19]   2.00-3.00   sec  16.0 MBytes   134 Mbits/sec   83   76.4 KBytes
[ 21]   2.00-3.00   sec  12.6 MBytes   105 Mbits/sec   22    146 KBytes
[ 23]   2.00-3.00   sec  11.6 MBytes  97.5 Mbits/sec   83    123 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   937 Mbits/sec  448
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  9.45 MBytes  79.2 Mbits/sec   35   59.4 KBytes
[  7]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec   12   77.8 KBytes
[  9]   3.00-4.00   sec  8.58 MBytes  71.9 Mbits/sec    1    113 KBytes
[ 11]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   17   91.9 KBytes
[ 13]   3.00-4.00   sec  8.58 MBytes  71.9 Mbits/sec   31   69.3 KBytes
[ 15]   3.00-4.00   sec  7.71 MBytes  64.6 Mbits/sec   37   48.1 KBytes
[ 17]   3.00-4.00   sec  13.3 MBytes   112 Mbits/sec    4    130 KBytes
[ 19]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   18   41.0 KBytes
[ 21]   3.00-4.00   sec  22.6 MBytes   190 Mbits/sec   24    113 KBytes
[ 23]   3.00-4.00   sec  12.7 MBytes   107 Mbits/sec   15   96.2 KBytes
[SUM]   3.00-4.00   sec   113 MBytes   947 Mbits/sec  194
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  9.45 MBytes  79.2 Mbits/sec   26   63.6 KBytes
[  7]   4.00-5.00   sec  9.07 MBytes  76.1 Mbits/sec   20   86.3 KBytes
[  9]   4.00-5.00   sec  16.7 MBytes   140 Mbits/sec   16    161 KBytes
[ 11]   4.00-5.00   sec  11.2 MBytes  94.4 Mbits/sec   31   79.2 KBytes
[ 13]   4.00-5.00   sec  11.2 MBytes  94.4 Mbits/sec   22   83.4 KBytes
[ 15]   4.00-5.00   sec  7.95 MBytes  66.7 Mbits/sec   10   63.6 KBytes
[ 17]   4.00-5.00   sec  13.0 MBytes   109 Mbits/sec   18   97.6 KBytes
[ 19]   4.00-5.00   sec  7.83 MBytes  65.7 Mbits/sec   20   83.4 KBytes
[ 21]   4.00-5.00   sec  14.4 MBytes   121 Mbits/sec   37   83.4 KBytes
[ 23]   4.00-5.00   sec  11.6 MBytes  97.0 Mbits/sec    9    127 KBytes
[SUM]   4.00-5.00   sec   113 MBytes   944 Mbits/sec  209
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  59.3 MBytes  99.4 Mbits/sec  284             sender
[  5]   0.00-5.01   sec  58.5 MBytes  98.0 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  56.7 MBytes  95.2 Mbits/sec  266             sender
[  7]   0.00-5.01   sec  56.2 MBytes  94.1 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  47.2 MBytes  79.1 Mbits/sec  199             sender
[  9]   0.00-5.01   sec  46.2 MBytes  77.4 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  53.2 MBytes  89.2 Mbits/sec  165             sender
[ 11]   0.00-5.01   sec  52.3 MBytes  87.6 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  53.9 MBytes  90.3 Mbits/sec  266             sender
[ 13]   0.00-5.01   sec  53.2 MBytes  89.1 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  41.3 MBytes  69.3 Mbits/sec  205             sender
[ 15]   0.00-5.01   sec  40.9 MBytes  68.4 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  58.2 MBytes  97.6 Mbits/sec  212             sender
[ 17]   0.00-5.01   sec  57.4 MBytes  96.1 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  61.7 MBytes   104 Mbits/sec  302             sender
[ 19]   0.00-5.01   sec  61.0 MBytes   102 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  71.0 MBytes   119 Mbits/sec  239             sender
[ 21]   0.00-5.01   sec  69.7 MBytes   117 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  62.0 MBytes   104 Mbits/sec  263             sender
[ 23]   0.00-5.01   sec  61.2 MBytes   103 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   564 MBytes   947 Mbits/sec  2401             sender
[SUM]   0.00-5.01   sec   557 MBytes   932 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         62912   4335428          0      203526  308103590          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         65754   4534903          0      203108  307466923          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=0.623 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.623/0.623/0.623/0.000 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 59982 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 59994 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 32776 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 32780 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 32792 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 32798 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 32812 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 32824 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 32832 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 32836 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  12.9 MBytes   108 Mbits/sec   48   93.3 KBytes
[  7]   0.00-1.00   sec  11.6 MBytes  96.9 Mbits/sec  109    110 KBytes
[  9]   0.00-1.00   sec  13.5 MBytes   113 Mbits/sec  113   86.3 KBytes
[ 11]   0.00-1.00   sec  9.49 MBytes  79.6 Mbits/sec   78   69.3 KBytes
[ 13]   0.00-1.00   sec  10.6 MBytes  88.7 Mbits/sec  100    102 KBytes
[ 15]   0.00-1.00   sec  11.2 MBytes  93.9 Mbits/sec   64    112 KBytes
[ 17]   0.00-1.00   sec  13.4 MBytes   112 Mbits/sec  125    117 KBytes
[ 19]   0.00-1.00   sec  9.12 MBytes  76.5 Mbits/sec   93    100 KBytes
[ 21]   0.00-1.00   sec  9.25 MBytes  77.6 Mbits/sec   61   90.5 KBytes
[ 23]   0.00-1.00   sec  13.1 MBytes   110 Mbits/sec  153   86.3 KBytes
[SUM]   0.00-1.00   sec   114 MBytes   956 Mbits/sec  944
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  12.2 MBytes   102 Mbits/sec   21   83.4 KBytes
[  7]   1.00-2.00   sec  10.1 MBytes  85.0 Mbits/sec   47   56.6 KBytes
[  9]   1.00-2.00   sec  13.3 MBytes   112 Mbits/sec   14    132 KBytes
[ 11]   1.00-2.00   sec  10.1 MBytes  85.0 Mbits/sec    9    115 KBytes
[ 13]   1.00-2.00   sec  10.6 MBytes  88.6 Mbits/sec   56   49.5 KBytes
[ 15]   1.00-2.00   sec  8.26 MBytes  69.3 Mbits/sec   31   55.1 KBytes
[ 17]   1.00-2.00   sec  8.58 MBytes  71.9 Mbits/sec   48   50.9 KBytes
[ 19]   1.00-2.00   sec  9.64 MBytes  80.8 Mbits/sec   46    123 KBytes
[ 21]   1.00-2.00   sec  18.8 MBytes   158 Mbits/sec   54    180 KBytes
[ 23]   1.00-2.00   sec  12.4 MBytes   104 Mbits/sec   23    100 KBytes
[SUM]   1.00-2.00   sec   114 MBytes   956 Mbits/sec  349
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  10.6 MBytes  89.1 Mbits/sec    7   74.9 KBytes
[  7]   2.00-3.00   sec  12.1 MBytes   102 Mbits/sec    5    106 KBytes
[  9]   2.00-3.00   sec  13.9 MBytes   116 Mbits/sec   24    151 KBytes
[ 11]   2.00-3.00   sec  13.9 MBytes   117 Mbits/sec   16    123 KBytes
[ 13]   2.00-3.00   sec  6.84 MBytes  57.3 Mbits/sec   19   86.3 KBytes
[ 15]   2.00-3.00   sec  8.70 MBytes  73.0 Mbits/sec   11   97.6 KBytes
[ 17]   2.00-3.00   sec  7.95 MBytes  66.7 Mbits/sec   15   43.8 KBytes
[ 19]   2.00-3.00   sec  11.0 MBytes  92.3 Mbits/sec   11   55.1 KBytes
[ 21]   2.00-3.00   sec  17.6 MBytes   148 Mbits/sec   20   82.0 KBytes
[ 23]   2.00-3.00   sec  9.69 MBytes  81.3 Mbits/sec   13    106 KBytes
[SUM]   2.00-3.00   sec   112 MBytes   942 Mbits/sec  141
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  7.77 MBytes  65.2 Mbits/sec   10   66.5 KBytes
[  7]   3.00-4.00   sec  11.6 MBytes  97.0 Mbits/sec   37   84.8 KBytes
[  9]   3.00-4.00   sec  18.1 MBytes   152 Mbits/sec   11    192 KBytes
[ 11]   3.00-4.00   sec  11.7 MBytes  98.0 Mbits/sec   30   49.5 KBytes
[ 13]   3.00-4.00   sec  8.70 MBytes  73.0 Mbits/sec   23   99.0 KBytes
[ 15]   3.00-4.00   sec  13.7 MBytes   115 Mbits/sec   40   67.9 KBytes
[ 17]   3.00-4.00   sec  6.52 MBytes  54.7 Mbits/sec   24   46.7 KBytes
[ 19]   3.00-4.00   sec  7.15 MBytes  59.9 Mbits/sec    9   84.8 KBytes
[ 21]   3.00-4.00   sec  9.94 MBytes  83.4 Mbits/sec   52   79.2 KBytes
[ 23]   3.00-4.00   sec  17.1 MBytes   143 Mbits/sec    9   65.0 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   941 Mbits/sec  245
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  12.1 MBytes   102 Mbits/sec   48    140 KBytes
[  7]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   34   84.8 KBytes
[  9]   4.00-5.00   sec  18.1 MBytes   152 Mbits/sec   73   91.9 KBytes
[ 11]   4.00-5.00   sec  9.07 MBytes  76.1 Mbits/sec   40   90.5 KBytes
[ 13]   4.00-5.00   sec  11.9 MBytes   100 Mbits/sec   64   87.7 KBytes
[ 15]   4.00-5.00   sec  11.2 MBytes  93.8 Mbits/sec   59    134 KBytes
[ 17]   4.00-5.00   sec  7.15 MBytes  59.9 Mbits/sec   42   52.3 KBytes
[ 19]   4.00-5.00   sec  13.4 MBytes   113 Mbits/sec   21    116 KBytes
[ 21]   4.00-5.00   sec  8.14 MBytes  68.3 Mbits/sec   92   48.1 KBytes
[ 23]   4.00-5.00   sec  8.26 MBytes  69.3 Mbits/sec   47   86.3 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   936 Mbits/sec  520
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  55.6 MBytes  93.2 Mbits/sec  134             sender
[  5]   0.00-5.01   sec  54.9 MBytes  91.9 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  57.5 MBytes  96.5 Mbits/sec  232             sender
[  7]   0.00-5.01   sec  56.8 MBytes  95.2 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  76.8 MBytes   129 Mbits/sec  235             sender
[  9]   0.00-5.01   sec  75.8 MBytes   127 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  54.3 MBytes  91.1 Mbits/sec  173             sender
[ 11]   0.00-5.01   sec  53.8 MBytes  90.1 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  48.6 MBytes  81.5 Mbits/sec  262             sender
[ 13]   0.00-5.01   sec  48.0 MBytes  80.4 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  53.1 MBytes  89.0 Mbits/sec  205             sender
[ 15]   0.00-5.01   sec  52.3 MBytes  87.7 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  43.6 MBytes  73.1 Mbits/sec  254             sender
[ 17]   0.00-5.01   sec  43.0 MBytes  72.0 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  50.3 MBytes  84.4 Mbits/sec  180             sender
[ 19]   0.00-5.01   sec  49.6 MBytes  83.2 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  63.8 MBytes   107 Mbits/sec  279             sender
[ 21]   0.00-5.01   sec  62.3 MBytes   104 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  60.6 MBytes   102 Mbits/sec  245             sender
[ 23]   0.00-5.01   sec  59.7 MBytes   100 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   564 MBytes   947 Mbits/sec  2199             sender
[SUM]   0.00-5.01   sec   556 MBytes   932 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         66482   4502955          0      202353  306323453          0
eth0p1  up         66920   4537104          0      203412  307926910          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