diff --git a/test_set/cvp-spt/global_config.yaml b/test_set/cvp-spt/global_config.yaml
index 3a731c4..ac1edd5 100644
--- a/test_set/cvp-spt/global_config.yaml
+++ b/test_set/cvp-spt/global_config.yaml
@@ -19,19 +19,21 @@
 # How many seconds to wait for salt-minion to respond
 salt_timeout: 1
 
-image_name: "Ubuntu"
 skipped_nodes: []
 # example for Jenkins: networks=net1,net2
 networks: "10.101.0.0/24"
-external_network: ''
 HW_NODES: []
 CMP_HOSTS: []
-nova_timeout: 90
-iperf_prep_string: "sudo /bin/bash -c 'echo \"91.189.88.161        archive.ubuntu.com\" >> /etc/hosts'"
 IMAGE_SIZE_MB: 2000
 
 # parameters for vm2vm test
+image_name: "Ubuntu"
 flavor_name: 'spt-test'
 flavor_ram: 1536
 flavor_vcpus: 1
 flavor_disk: 5
+nova_timeout: 90
+external_network: ''
+iperf_prep_string: "sudo /bin/bash -c 'echo \"91.189.88.161        archive.ubuntu.com\" >> /etc/hosts'"
+# whether Internet is present at OpenStack VMs and iperf can be installed with apt
+internet_at_vms: 'true'
\ No newline at end of file
diff --git a/test_set/cvp-spt/utils/ssh.py b/test_set/cvp-spt/utils/ssh.py
index 66551eb..dec9ba3 100644
--- a/test_set/cvp-spt/utils/ssh.py
+++ b/test_set/cvp-spt/utils/ssh.py
@@ -136,5 +136,23 @@
         config = utils.get_configuration()
         preparation_cmd = config.get('iperf_prep_string') or ['']
         transport.exec_command(preparation_cmd)
-        transport.exec_command('sudo apt-get update; sudo apt-get install -y iperf')
-        transport.exec_command('nohup iperf -s > file 2>&1 &') 
+
+        # Install iperf using apt or downloaded deb package
+        internet_at_vms = utils.get_configuration().get("internet_at_vms")
+        if internet_at_vms.lower() == 'false':
+            logger.debug("Using downloaded iperf package")
+            transport.put_file("/var/lib/iperf_2.0.5+dfsg1-2_amd64.deb",
+                               "/home/ubuntu/iperf_2.0.5+dfsg1-2_amd64.deb")
+            transport.exec_command(
+                'sudo dpkg -i /home/ubuntu/iperf_2.0.5+dfsg1-2_amd64.deb')
+        else:
+            logger.debug("Installing iperf using apt")
+            transport.exec_command(
+                'sudo apt-get update; sudo apt-get install -y iperf')
+
+        # Log whether iperf is installed with version
+        check = transport.exec_command('dpkg -l | grep iperf')
+        logger.debug(check)
+
+        # Staring iperf server
+        transport.exec_command('nohup iperf -s > file 2>&1 &')