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=0.642 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.642/0.642/0.642/0.000 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 36174 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 36188 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 36190 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 36196 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 36200 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 36204 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 36208 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 36214 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 36220 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 36232 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  49.2 MBytes   413 Mbits/sec  900    211 KBytes
[  7]   0.00-1.00   sec  8.25 MBytes  69.2 Mbits/sec   28   96.2 KBytes
[  9]   0.00-1.00   sec  5.97 MBytes  50.1 Mbits/sec   32   72.1 KBytes
[ 11]   0.00-1.00   sec  5.91 MBytes  49.6 Mbits/sec   30   62.2 KBytes
[ 13]   0.00-1.00   sec  6.13 MBytes  51.4 Mbits/sec   33   76.4 KBytes
[ 15]   0.00-1.00   sec  5.79 MBytes  48.6 Mbits/sec   38   56.6 KBytes
[ 17]   0.00-1.00   sec  6.26 MBytes  52.5 Mbits/sec   31   69.3 KBytes
[ 19]   0.00-1.00   sec  8.83 MBytes  74.1 Mbits/sec   15   73.5 KBytes
[ 21]   0.00-1.00   sec  5.54 MBytes  46.5 Mbits/sec   28   55.1 KBytes
[ 23]   0.00-1.00   sec  16.3 MBytes   136 Mbits/sec  102    157 KBytes
[SUM]   0.00-1.00   sec   118 MBytes   991 Mbits/sec  1237
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  18.8 MBytes   157 Mbits/sec   39   56.6 KBytes
[  7]   1.00-2.00   sec  12.3 MBytes   103 Mbits/sec    5    107 KBytes
[  9]   1.00-2.00   sec  9.01 MBytes  75.6 Mbits/sec   16   86.3 KBytes
[ 11]   1.00-2.00   sec  7.46 MBytes  62.6 Mbits/sec   15   82.0 KBytes
[ 13]   1.00-2.00   sec  10.4 MBytes  87.1 Mbits/sec   11   77.8 KBytes
[ 15]   1.00-2.00   sec  10.6 MBytes  89.1 Mbits/sec   14   53.7 KBytes
[ 17]   1.00-2.00   sec  7.39 MBytes  62.0 Mbits/sec    9   45.2 KBytes
[ 19]   1.00-2.00   sec  14.0 MBytes   118 Mbits/sec   19   77.8 KBytes
[ 21]   1.00-2.00   sec  8.39 MBytes  70.4 Mbits/sec   14   70.7 KBytes
[ 23]   1.00-2.00   sec  14.9 MBytes   125 Mbits/sec    6    112 KBytes
[SUM]   1.00-2.00   sec   113 MBytes   950 Mbits/sec  148
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  10.0 MBytes  83.9 Mbits/sec   12    107 KBytes
[  7]   2.00-3.00   sec  15.5 MBytes   130 Mbits/sec   28    107 KBytes
[  9]   2.00-3.00   sec  10.6 MBytes  88.6 Mbits/sec   10   83.4 KBytes
[ 11]   2.00-3.00   sec  10.5 MBytes  88.1 Mbits/sec   30   76.4 KBytes
[ 13]   2.00-3.00   sec  13.7 MBytes   115 Mbits/sec   20    117 KBytes
[ 15]   2.00-3.00   sec  8.70 MBytes  73.0 Mbits/sec    3    100 KBytes
[ 17]   2.00-3.00   sec  7.46 MBytes  62.6 Mbits/sec   22   65.0 KBytes
[ 19]   2.00-3.00   sec  10.8 MBytes  90.2 Mbits/sec   10   76.4 KBytes
[ 21]   2.00-3.00   sec  13.1 MBytes   110 Mbits/sec   14   80.6 KBytes
[ 23]   2.00-3.00   sec  12.8 MBytes   107 Mbits/sec   20   84.8 KBytes
[SUM]   2.00-3.00   sec   113 MBytes   949 Mbits/sec  169
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  13.8 MBytes   115 Mbits/sec    9    109 KBytes
[  7]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   55   67.9 KBytes
[  9]   3.00-4.00   sec  13.5 MBytes   113 Mbits/sec    7    105 KBytes
[ 11]   3.00-4.00   sec  9.57 MBytes  80.3 Mbits/sec   19    113 KBytes
[ 13]   3.00-4.00   sec  11.5 MBytes  96.4 Mbits/sec   48   96.2 KBytes
[ 15]   3.00-4.00   sec  16.8 MBytes   141 Mbits/sec   15    136 KBytes
[ 17]   3.00-4.00   sec  6.28 MBytes  52.6 Mbits/sec   43   49.5 KBytes
[ 19]   3.00-4.00   sec  8.08 MBytes  67.8 Mbits/sec   35   58.0 KBytes
[ 21]   3.00-4.00   sec  10.3 MBytes  86.0 Mbits/sec   18   97.6 KBytes
[ 23]   3.00-4.00   sec  11.6 MBytes  97.0 Mbits/sec   11   94.7 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   941 Mbits/sec  260
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  8.75 MBytes  73.4 Mbits/sec   31   55.1 KBytes
[  7]   4.00-5.00   sec  7.15 MBytes  59.9 Mbits/sec   22   48.1 KBytes
[  9]   4.00-5.00   sec  15.2 MBytes   127 Mbits/sec   11    168 KBytes
[ 11]   4.00-5.00   sec  9.20 MBytes  77.2 Mbits/sec   32   77.8 KBytes
[ 13]   4.00-5.00   sec  11.2 MBytes  93.8 Mbits/sec   16   80.6 KBytes
[ 15]   4.00-5.00   sec  14.2 MBytes   119 Mbits/sec   30   62.2 KBytes
[ 17]   4.00-5.00   sec  9.88 MBytes  82.9 Mbits/sec   15    119 KBytes
[ 19]   4.00-5.00   sec  11.8 MBytes  99.0 Mbits/sec    9    107 KBytes
[ 21]   4.00-5.00   sec  12.4 MBytes   104 Mbits/sec   11    115 KBytes
[ 23]   4.00-5.00   sec  11.3 MBytes  94.9 Mbits/sec   36    120 KBytes
[SUM]   4.00-5.00   sec   111 MBytes   931 Mbits/sec  213
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec   100 MBytes   169 Mbits/sec  991             sender
[  5]   0.00-5.01   sec  97.2 MBytes   163 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  54.2 MBytes  90.9 Mbits/sec  138             sender
[  7]   0.00-5.01   sec  53.6 MBytes  89.8 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  54.2 MBytes  90.9 Mbits/sec   76             sender
[  9]   0.00-5.01   sec  53.4 MBytes  89.4 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  42.6 MBytes  71.5 Mbits/sec  126             sender
[ 11]   0.00-5.01   sec  42.2 MBytes  70.8 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  52.9 MBytes  88.7 Mbits/sec  128             sender
[ 13]   0.00-5.01   sec  52.3 MBytes  87.6 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  56.1 MBytes  94.1 Mbits/sec  100             sender
[ 15]   0.00-5.01   sec  55.4 MBytes  92.8 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  37.3 MBytes  62.5 Mbits/sec  120             sender
[ 17]   0.00-5.01   sec  36.8 MBytes  61.6 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  53.5 MBytes  89.8 Mbits/sec   88             sender
[ 19]   0.00-5.01   sec  52.7 MBytes  88.3 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  49.7 MBytes  83.4 Mbits/sec   85             sender
[ 21]   0.00-5.01   sec  49.2 MBytes  82.5 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  66.8 MBytes   112 Mbits/sec  175             sender
[ 23]   0.00-5.01   sec  65.7 MBytes   110 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   568 MBytes   953 Mbits/sec  2027             sender
[SUM]   0.00-5.01   sec   559 MBytes   936 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         66115   4464205          0      205030  310378522          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         69003   4667465          0      202172  306051063          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=0.587 ms

--- 192.168.100.20 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 0.587/0.587/0.587/0.000 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 56784 connected to 192.168.100.20 port 5001
[  7] local 192.168.100.10 port 56788 connected to 192.168.100.20 port 5001
[  9] local 192.168.100.10 port 56804 connected to 192.168.100.20 port 5001
[ 11] local 192.168.100.10 port 56806 connected to 192.168.100.20 port 5001
[ 13] local 192.168.100.10 port 56814 connected to 192.168.100.20 port 5001
[ 15] local 192.168.100.10 port 56816 connected to 192.168.100.20 port 5001
[ 17] local 192.168.100.10 port 56830 connected to 192.168.100.20 port 5001
[ 19] local 192.168.100.10 port 56832 connected to 192.168.100.20 port 5001
[ 21] local 192.168.100.10 port 56844 connected to 192.168.100.20 port 5001
[ 23] local 192.168.100.10 port 56860 connected to 192.168.100.20 port 5001
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec  9.00 MBytes  75.5 Mbits/sec   27   55.1 KBytes
[  7]   0.00-1.00   sec  7.79 MBytes  65.3 Mbits/sec   10   97.6 KBytes
[  9]   0.00-1.00   sec  7.72 MBytes  64.8 Mbits/sec   27   52.3 KBytes
[ 11]   0.00-1.00   sec  5.85 MBytes  49.1 Mbits/sec   11   60.8 KBytes
[ 13]   0.00-1.00   sec  5.76 MBytes  48.3 Mbits/sec   13   41.0 KBytes
[ 15]   0.00-1.00   sec  7.16 MBytes  60.0 Mbits/sec   19   72.1 KBytes
[ 17]   0.00-1.00   sec  15.3 MBytes   129 Mbits/sec   36   94.7 KBytes
[ 19]   0.00-1.00   sec  32.9 MBytes   276 Mbits/sec   34    208 KBytes
[ 21]   0.00-1.00   sec  17.4 MBytes   146 Mbits/sec   55    120 KBytes
[ 23]   0.00-1.00   sec  8.74 MBytes  73.3 Mbits/sec   34   62.2 KBytes
[SUM]   0.00-1.00   sec   118 MBytes   987 Mbits/sec  266
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   1.00-2.00   sec  8.39 MBytes  70.4 Mbits/sec  103   73.5 KBytes
[  7]   1.00-2.00   sec  12.2 MBytes   102 Mbits/sec  137   83.4 KBytes
[  9]   1.00-2.00   sec  7.71 MBytes  64.6 Mbits/sec   47   91.9 KBytes
[ 11]   1.00-2.00   sec  7.15 MBytes  59.9 Mbits/sec   63   69.3 KBytes
[ 13]   1.00-2.00   sec  7.21 MBytes  60.5 Mbits/sec   90   65.0 KBytes
[ 15]   1.00-2.00   sec  13.4 MBytes   113 Mbits/sec   85    141 KBytes
[ 17]   1.00-2.00   sec  13.3 MBytes   112 Mbits/sec  141    102 KBytes
[ 19]   1.00-2.00   sec  20.6 MBytes   173 Mbits/sec  286    100 KBytes
[ 21]   1.00-2.00   sec  10.3 MBytes  86.0 Mbits/sec  121   86.3 KBytes
[ 23]   1.00-2.00   sec  8.51 MBytes  71.4 Mbits/sec  104   36.8 KBytes
[SUM]   1.00-2.00   sec   109 MBytes   912 Mbits/sec  1177
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   2.00-3.00   sec  9.63 MBytes  80.8 Mbits/sec   18   63.6 KBytes
[  7]   2.00-3.00   sec  11.1 MBytes  92.8 Mbits/sec   46   94.7 KBytes
[  9]   2.00-3.00   sec  8.95 MBytes  75.1 Mbits/sec   57   50.9 KBytes
[ 11]   2.00-3.00   sec  13.9 MBytes   117 Mbits/sec  120    148 KBytes
[ 13]   2.00-3.00   sec  9.94 MBytes  83.4 Mbits/sec   55   82.0 KBytes
[ 15]   2.00-3.00   sec  17.1 MBytes   143 Mbits/sec  132    167 KBytes
[ 17]   2.00-3.00   sec  10.2 MBytes  85.5 Mbits/sec   44    102 KBytes
[ 19]   2.00-3.00   sec  12.0 MBytes   101 Mbits/sec   51   74.9 KBytes
[ 21]   2.00-3.00   sec  10.5 MBytes  88.1 Mbits/sec   23   72.1 KBytes
[ 23]   2.00-3.00   sec  8.20 MBytes  68.8 Mbits/sec   59   79.2 KBytes
[SUM]   2.00-3.00   sec   111 MBytes   935 Mbits/sec  605
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   3.00-4.00   sec  7.46 MBytes  62.6 Mbits/sec   23   90.5 KBytes
[  7]   3.00-4.00   sec  10.9 MBytes  91.7 Mbits/sec   14    112 KBytes
[  9]   3.00-4.00   sec  12.4 MBytes   104 Mbits/sec   20    150 KBytes
[ 11]   3.00-4.00   sec  9.26 MBytes  77.7 Mbits/sec   31   50.9 KBytes
[ 13]   3.00-4.00   sec  11.7 MBytes  98.0 Mbits/sec    9   91.9 KBytes
[ 15]   3.00-4.00   sec  14.2 MBytes   119 Mbits/sec   53   74.9 KBytes
[ 17]   3.00-4.00   sec  11.9 MBytes   100 Mbits/sec   34   83.4 KBytes
[ 19]   3.00-4.00   sec  11.3 MBytes  94.9 Mbits/sec   11   58.0 KBytes
[ 21]   3.00-4.00   sec  8.20 MBytes  68.8 Mbits/sec   26   91.9 KBytes
[ 23]   3.00-4.00   sec  15.1 MBytes   127 Mbits/sec   20    168 KBytes
[SUM]   3.00-4.00   sec   112 MBytes   944 Mbits/sec  241
- - - - - - - - - - - - - - - - - - - - - - - - -
[  5]   4.00-5.00   sec  10.0 MBytes  83.9 Mbits/sec   12   84.8 KBytes
[  7]   4.00-5.00   sec  9.82 MBytes  82.4 Mbits/sec   11   82.0 KBytes
[  9]   4.00-5.00   sec  14.9 MBytes   125 Mbits/sec   45    143 KBytes
[ 11]   4.00-5.00   sec  9.76 MBytes  81.8 Mbits/sec   20    120 KBytes
[ 13]   4.00-5.00   sec  12.2 MBytes   102 Mbits/sec   11    109 KBytes
[ 15]   4.00-5.00   sec  8.33 MBytes  69.8 Mbits/sec   23   43.8 KBytes
[ 17]   4.00-5.00   sec  11.0 MBytes  92.3 Mbits/sec   15   70.7 KBytes
[ 19]   4.00-5.00   sec  8.58 MBytes  71.9 Mbits/sec   19   62.2 KBytes
[ 21]   4.00-5.00   sec  11.9 MBytes   100 Mbits/sec   26   74.9 KBytes
[ 23]   4.00-5.00   sec  15.3 MBytes   129 Mbits/sec   25    107 KBytes
[SUM]   4.00-5.00   sec   112 MBytes   938 Mbits/sec  207
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-5.00   sec  44.5 MBytes  74.6 Mbits/sec  183             sender
[  5]   0.00-5.01   sec  44.0 MBytes  73.7 Mbits/sec                  receiver
[  7]   0.00-5.00   sec  51.8 MBytes  86.9 Mbits/sec  218             sender
[  7]   0.00-5.01   sec  51.2 MBytes  85.7 Mbits/sec                  receiver
[  9]   0.00-5.00   sec  51.7 MBytes  86.7 Mbits/sec  196             sender
[  9]   0.00-5.01   sec  51.0 MBytes  85.4 Mbits/sec                  receiver
[ 11]   0.00-5.00   sec  45.9 MBytes  77.1 Mbits/sec  245             sender
[ 11]   0.00-5.01   sec  45.4 MBytes  76.1 Mbits/sec                  receiver
[ 13]   0.00-5.00   sec  46.8 MBytes  78.5 Mbits/sec  178             sender
[ 13]   0.00-5.01   sec  46.3 MBytes  77.5 Mbits/sec                  receiver
[ 15]   0.00-5.00   sec  60.2 MBytes   101 Mbits/sec  312             sender
[ 15]   0.00-5.01   sec  59.0 MBytes  98.8 Mbits/sec                  receiver
[ 17]   0.00-5.00   sec  61.8 MBytes   104 Mbits/sec  270             sender
[ 17]   0.00-5.01   sec  61.1 MBytes   102 Mbits/sec                  receiver
[ 19]   0.00-5.00   sec  85.4 MBytes   143 Mbits/sec  401             sender
[ 19]   0.00-5.01   sec  83.6 MBytes   140 Mbits/sec                  receiver
[ 21]   0.00-5.00   sec  58.3 MBytes  97.7 Mbits/sec  251             sender
[ 21]   0.00-5.01   sec  57.6 MBytes  96.5 Mbits/sec                  receiver
[ 23]   0.00-5.00   sec  55.9 MBytes  93.8 Mbits/sec  242             sender
[ 23]   0.00-5.01   sec  55.2 MBytes  92.5 Mbits/sec                  receiver
[SUM]   0.00-5.00   sec   562 MBytes   943 Mbits/sec  2496             sender
[SUM]   0.00-5.01   sec   554 MBytes   929 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         62527   4238602          0      202086  305924169          0
eth0p1  up         59314   4034149          0      202609  306712979          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