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: v6.1.55

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=0.730 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.730/0.730/0.730/0.000 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 50948 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 50962 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 50972 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 50976 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 50982 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 50984 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 51000 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 51016 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 51024 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 51028 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  13.7 MBytes   115 Mbits/sec   17   53.7 KBytes
[  7]   0.00-1.00   sec  14.0 MBytes   117 Mbits/sec   31   94.7 KBytes
[  9]   0.00-1.00   sec  13.3 MBytes   112 Mbits/sec   17   90.5 KBytes
[ 11]   0.00-1.00   sec  9.14 MBytes  76.7 Mbits/sec   18   77.8 KBytes
[ 13]   0.00-1.00   sec  8.06 MBytes  67.6 Mbits/sec   17   62.2 KBytes
[ 15]   0.00-1.00   sec  10.8 MBytes  90.2 Mbits/sec   24   72.1 KBytes
[ 17]   0.00-1.00   sec  7.51 MBytes  63.0 Mbits/sec   18   65.0 KBytes
[ 19]   0.00-1.00   sec  10.7 MBytes  89.7 Mbits/sec   14    112 KBytes
[ 21]   0.00-1.00   sec  19.1 MBytes   160 Mbits/sec   45   90.5 KBytes
[ 23]   0.00-1.00   sec  10.5 MBytes  87.9 Mbits/sec   12   74.9 KBytes
[SUM]   0.00-1.00   sec   117 MBytes   980 Mbits/sec  213
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  10.1 MBytes  84.4 Mbits/sec    9   82.0 KBytes
[  7]   1.00-2.00   sec  11.8 MBytes  99.0 Mbits/sec   27    113 KBytes
[  9]   1.00-2.00   sec  14.0 MBytes   117 Mbits/sec   20    137 KBytes
[ 11]   1.00-2.00   sec  9.69 MBytes  81.3 Mbits/sec   29   36.8 KBytes
[ 13]   1.00-2.00   sec  8.76 MBytes  73.5 Mbits/sec    8   46.7 KBytes
[ 15]   1.00-2.00   sec  10.8 MBytes  90.2 Mbits/sec   13   67.9 KBytes
[ 17]   1.00-2.00   sec  11.0 MBytes  92.3 Mbits/sec   18    124 KBytes
[ 19]   1.00-2.00   sec  16.2 MBytes   136 Mbits/sec   32    106 KBytes
[ 21]   1.00-2.00   sec  10.9 MBytes  91.2 Mbits/sec   23   82.0 KBytes
[ 23]   1.00-2.00   sec  9.57 MBytes  80.3 Mbits/sec    9    106 KBytes
[SUM]   1.00-2.00   sec   113 MBytes   945 Mbits/sec  188
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  7.58 MBytes  63.6 Mbits/sec    9   53.7 KBytes
[  7]   2.00-3.00   sec  14.9 MBytes   125 Mbits/sec    9    113 KBytes
[  9]   2.00-3.00   sec  14.4 MBytes   120 Mbits/sec    7    140 KBytes
[ 11]   2.00-3.00   sec  8.02 MBytes  67.2 Mbits/sec    3    107 KBytes
[ 13]   2.00-3.00   sec  7.71 MBytes  64.6 Mbits/sec   10   62.2 KBytes
[ 15]   2.00-3.00   sec  8.20 MBytes  68.8 Mbits/sec   15   84.8 KBytes
[ 17]   2.00-3.00   sec  13.0 MBytes   109 Mbits/sec   26   86.3 KBytes
[ 19]   2.00-3.00   sec  11.9 MBytes   100 Mbits/sec   36   79.2 KBytes
[ 21]   2.00-3.00   sec  12.8 MBytes   107 Mbits/sec    8    100 KBytes
[ 23]   2.00-3.00   sec  14.2 MBytes   119 Mbits/sec   33    110 KBytes
[SUM]   2.00-3.00   sec   113 MBytes   946 Mbits/sec  156
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  9.01 MBytes  75.6 Mbits/sec   11   93.3 KBytes
[  7]   3.00-4.00   sec  11.6 MBytes  97.0 Mbits/sec   15   72.1 KBytes
[  9]   3.00-4.00   sec  19.6 MBytes   165 Mbits/sec   53    112 KBytes
[ 11]   3.00-4.00   sec  8.51 MBytes  71.4 Mbits/sec   26   69.3 KBytes
[ 13]   3.00-4.00   sec  7.95 MBytes  66.7 Mbits/sec   33   58.0 KBytes
[ 15]   3.00-4.00   sec  10.6 MBytes  89.1 Mbits/sec   19   79.2 KBytes
[ 17]   3.00-4.00   sec  12.8 MBytes   107 Mbits/sec   11    106 KBytes
[ 19]   3.00-4.00   sec  7.83 MBytes  65.7 Mbits/sec   21   74.9 KBytes
[ 21]   3.00-4.00   sec  12.0 MBytes   101 Mbits/sec    6    124 KBytes
[ 23]   3.00-4.00   sec  12.5 MBytes   105 Mbits/sec   12   43.8 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   943 Mbits/sec  207
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  13.6 MBytes   114 Mbits/sec    4    148 KBytes
[  7]   4.00-5.00   sec  8.89 MBytes  74.5 Mbits/sec   17   87.7 KBytes
[  9]   4.00-5.00   sec  18.3 MBytes   153 Mbits/sec   17    141 KBytes
[ 11]   4.00-5.00   sec  9.57 MBytes  80.3 Mbits/sec    9    106 KBytes
[ 13]   4.00-5.00   sec  11.6 MBytes  97.0 Mbits/sec    9   80.6 KBytes
[ 15]   4.00-5.00   sec  11.5 MBytes  96.4 Mbits/sec   11    105 KBytes
[ 17]   4.00-5.00   sec  10.6 MBytes  89.1 Mbits/sec   28   65.0 KBytes
[ 19]   4.00-5.00   sec  10.1 MBytes  84.4 Mbits/sec   20   67.9 KBytes
[ 21]   4.00-5.00   sec  11.7 MBytes  98.0 Mbits/sec   17   69.3 KBytes
[ 23]   4.00-5.00   sec  5.97 MBytes  50.0 Mbits/sec   17   41.0 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   937 Mbits/sec  149
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  54.0 MBytes  90.6 Mbits/sec   50             sender
[  5]   0.00-5.01   sec  53.3 MBytes  89.3 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  61.1 MBytes   103 Mbits/sec   99             sender
[  7]   0.00-5.01   sec  60.5 MBytes   101 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  79.6 MBytes   133 Mbits/sec  114             sender
[  9]   0.00-5.01   sec  78.8 MBytes   132 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  44.9 MBytes  75.4 Mbits/sec   85             sender
[ 11]   0.00-5.01   sec  44.5 MBytes  74.5 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  44.0 MBytes  73.9 Mbits/sec   77             sender
[ 13]   0.00-5.01   sec  43.5 MBytes  72.8 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  51.8 MBytes  87.0 Mbits/sec   82             sender
[ 15]   0.00-5.01   sec  51.1 MBytes  85.7 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  54.9 MBytes  92.1 Mbits/sec  101             sender
[ 17]   0.00-5.01   sec  54.3 MBytes  91.0 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  56.7 MBytes  95.1 Mbits/sec  123             sender
[ 19]   0.00-5.01   sec  56.0 MBytes  93.9 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  66.5 MBytes   112 Mbits/sec   99             sender
[ 21]   0.00-5.01   sec  65.7 MBytes   110 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  52.7 MBytes  88.5 Mbits/sec   83             sender
[ 23]   0.00-5.01   sec  52.1 MBytes  87.2 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   566 MBytes   950 Mbits/sec  913             sender
[SUM]   0.00-5.01   sec   560 MBytes   938 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         66600   4463269          0      201967  305744246          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         73908   4953365          0      205071  310443038          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: v6.1.55

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=0.606 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.606/0.606/0.606/0.000 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 52228 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 52236 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 52252 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 52260 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 52268 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 52284 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 52294 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 52298 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 52302 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 52316 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  22.6 MBytes   190 Mbits/sec   25    148 KBytes
[  7]   0.00-1.00   sec  9.92 MBytes  83.2 Mbits/sec    9   86.3 KBytes
[  9]   0.00-1.00   sec  11.3 MBytes  94.6 Mbits/sec   12    120 KBytes
[ 11]   0.00-1.00   sec  9.71 MBytes  81.5 Mbits/sec   12   86.3 KBytes
[ 13]   0.00-1.00   sec  10.4 MBytes  87.6 Mbits/sec   20   66.5 KBytes
[ 15]   0.00-1.00   sec  9.64 MBytes  80.9 Mbits/sec   28   46.7 KBytes
[ 17]   0.00-1.00   sec  11.2 MBytes  93.8 Mbits/sec   20   96.2 KBytes
[ 19]   0.00-1.00   sec  9.70 MBytes  81.3 Mbits/sec   12   66.5 KBytes
[ 21]   0.00-1.00   sec  9.78 MBytes  82.0 Mbits/sec    7    102 KBytes
[ 23]   0.00-1.00   sec  13.2 MBytes   111 Mbits/sec   26    103 KBytes
[SUM]   0.00-1.00   sec   118 MBytes   986 Mbits/sec  171
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  15.8 MBytes   133 Mbits/sec   16   97.6 KBytes
[  7]   1.00-2.00   sec  10.2 MBytes  85.5 Mbits/sec   14   82.0 KBytes
[  9]   1.00-2.00   sec  14.2 MBytes   119 Mbits/sec    9   62.2 KBytes
[ 11]   1.00-2.00   sec  13.0 MBytes   109 Mbits/sec   17   99.0 KBytes
[ 13]   1.00-2.00   sec  7.95 MBytes  66.7 Mbits/sec   14   86.3 KBytes
[ 15]   1.00-2.00   sec  8.45 MBytes  70.9 Mbits/sec   20   56.6 KBytes
[ 17]   1.00-2.00   sec  10.1 MBytes  84.4 Mbits/sec   15   60.8 KBytes
[ 19]   1.00-2.00   sec  8.51 MBytes  71.4 Mbits/sec   20   79.2 KBytes
[ 21]   1.00-2.00   sec  12.7 MBytes   106 Mbits/sec    5    117 KBytes
[ 23]   1.00-2.00   sec  11.4 MBytes  95.9 Mbits/sec   20    127 KBytes
[SUM]   1.00-2.00   sec   112 MBytes   942 Mbits/sec  150
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  11.4 MBytes  95.9 Mbits/sec   38   43.8 KBytes
[  7]   2.00-3.00   sec  12.1 MBytes   101 Mbits/sec   16    136 KBytes
[  9]   2.00-3.00   sec  12.9 MBytes   108 Mbits/sec    9    150 KBytes
[ 11]   2.00-3.00   sec  13.0 MBytes   109 Mbits/sec   14   55.1 KBytes
[ 13]   2.00-3.00   sec  9.82 MBytes  82.4 Mbits/sec   28   63.6 KBytes
[ 15]   2.00-3.00   sec  8.70 MBytes  73.0 Mbits/sec   11   87.7 KBytes
[ 17]   2.00-3.00   sec  7.71 MBytes  64.6 Mbits/sec   26   83.4 KBytes
[ 19]   2.00-3.00   sec  13.0 MBytes   109 Mbits/sec   13   86.3 KBytes
[ 21]   2.00-3.00   sec  14.2 MBytes   119 Mbits/sec   12    119 KBytes
[ 23]   2.00-3.00   sec  9.69 MBytes  81.3 Mbits/sec   23   60.8 KBytes
[SUM]   2.00-3.00   sec   113 MBytes   945 Mbits/sec  190
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  8.08 MBytes  67.8 Mbits/sec   13   74.9 KBytes
[  7]   3.00-4.00   sec  14.7 MBytes   123 Mbits/sec   27   90.5 KBytes
[  9]   3.00-4.00   sec  11.1 MBytes  93.3 Mbits/sec   40   60.8 KBytes
[ 11]   3.00-4.00   sec  10.7 MBytes  89.7 Mbits/sec    3    109 KBytes
[ 13]   3.00-4.00   sec  6.77 MBytes  56.8 Mbits/sec   26   42.4 KBytes
[ 15]   3.00-4.00   sec  15.7 MBytes   132 Mbits/sec   11    124 KBytes
[ 17]   3.00-4.00   sec  8.45 MBytes  70.9 Mbits/sec   24   76.4 KBytes
[ 19]   3.00-4.00   sec  10.6 MBytes  89.1 Mbits/sec    4    117 KBytes
[ 21]   3.00-4.00   sec  17.1 MBytes   143 Mbits/sec    9    109 KBytes
[ 23]   3.00-4.00   sec  8.08 MBytes  67.8 Mbits/sec   18   76.4 KBytes
[SUM]   3.00-4.00   sec   111 MBytes   934 Mbits/sec  175
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  9.01 MBytes  75.6 Mbits/sec   35   80.6 KBytes
[  7]   4.00-5.00   sec  9.94 MBytes  83.4 Mbits/sec   15   59.4 KBytes
[  9]   4.00-5.00   sec  12.7 MBytes   106 Mbits/sec    5    110 KBytes
[ 11]   4.00-5.00   sec  12.1 MBytes   101 Mbits/sec   34    122 KBytes
[ 13]   4.00-5.00   sec  5.97 MBytes  50.0 Mbits/sec   24   48.1 KBytes
[ 15]   4.00-5.00   sec  16.5 MBytes   138 Mbits/sec   13    116 KBytes
[ 17]   4.00-5.00   sec  8.26 MBytes  69.3 Mbits/sec   28   62.2 KBytes
[ 19]   4.00-5.00   sec  15.2 MBytes   127 Mbits/sec   32    161 KBytes
[ 21]   4.00-5.00   sec  11.2 MBytes  94.4 Mbits/sec   15   94.7 KBytes
[ 23]   4.00-5.00   sec  11.8 MBytes  99.0 Mbits/sec   17   91.9 KBytes
[SUM]   4.00-5.00   sec   113 MBytes   945 Mbits/sec  218
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  67.0 MBytes   112 Mbits/sec  127             sender
[  5]   0.00-5.01   sec  66.1 MBytes   111 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  56.8 MBytes  95.3 Mbits/sec   81             sender
[  7]   0.00-5.01   sec  56.1 MBytes  94.0 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  62.2 MBytes   104 Mbits/sec   75             sender
[  9]   0.00-5.01   sec  61.5 MBytes   103 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  58.5 MBytes  98.1 Mbits/sec   80             sender
[ 11]   0.00-5.01   sec  57.7 MBytes  96.6 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  40.9 MBytes  68.7 Mbits/sec  112             sender
[ 13]   0.00-5.01   sec  40.5 MBytes  67.9 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  59.0 MBytes  99.0 Mbits/sec   83             sender
[ 15]   0.00-5.01   sec  58.1 MBytes  97.4 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  45.7 MBytes  76.6 Mbits/sec  113             sender
[ 17]   0.00-5.01   sec  45.2 MBytes  75.8 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  57.0 MBytes  95.7 Mbits/sec   81             sender
[ 19]   0.00-5.01   sec  56.3 MBytes  94.4 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  65.0 MBytes   109 Mbits/sec   48             sender
[ 21]   0.00-5.01   sec  64.1 MBytes   107 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  54.3 MBytes  91.0 Mbits/sec  104             sender
[ 23]   0.00-5.01   sec  53.6 MBytes  89.8 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   566 MBytes   950 Mbits/sec  904             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:

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         63871   4295257          0      202406  306406310          0
eth0p1  up         71633   4817615          0      204270  309229253          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