[VOL-4327] Updated Check Ping keyword to send 30 packets and Check Ping Result keyword to accept upto 4% packet loss

Change-Id: I69b82024da573d9ae51784cfd9522c56f1a029de
diff --git a/Makefile b/Makefile
index b10a4ea..a2b237d 100644
--- a/Makefile
+++ b/Makefile
@@ -142,5 +142,5 @@
 	find . -name output.xml -print
 
 clean-all: clean
-	rm -rf venv_cord gendocs cord-robot/CORDRobot/VERSION cord-robot/dist/*
+	rm -rf vst_venv venv_cord gendocs cord-robot/CORDRobot/VERSION cord-robot/dist/*
 
diff --git a/VERSION b/VERSION
index 399088b..04b10b4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.6
+2.1.7
diff --git a/cord-robot/CORDRobot/rf-resources/utils.resource b/cord-robot/CORDRobot/rf-resources/utils.resource
index 1aaeb42..eb68a67 100644
--- a/cord-robot/CORDRobot/rf-resources/utils.resource
+++ b/cord-robot/CORDRobot/rf-resources/utils.resource
@@ -160,7 +160,8 @@
     Run Keyword If    '${reachable}' == 'True'
     ...    Should Contain    ${result}    64 bytes
     Run Keyword If    '${reachable}' == 'True'
-    ...    Should Contain Any    ${result}    0% packet loss    0.0% packet loss
+    ...    Should Contain Any    ${result}    0% packet loss    0.0% packet loss    1% packet loss
+    ...    2% packet loss    3% packet loss    4% packet loss
     Run Keyword If    '${reachable}' == 'True'
     ...    Should Not Contain Any    ${result}    100% packet loss    100.0% packet loss
     Run Keyword If    '${reachable}' == 'False'
@@ -173,7 +174,7 @@
     [Arguments]    ${ping_should_pass}    ${dst_ip}    ${iface}    ${ip}
     ...    ${user}    ${pass}=${None}    ${container_type}=${None}    ${container_name}=${None}
     ${result}=    Login And Run Command On Remote System
-    ...    ping -I ${iface} -c 3 ${dst_ip}
+    ...    ping -I ${iface} -c 30 ${dst_ip}
     ...    ${ip}    ${user}    ${pass}    ${container_type}    ${container_name}
     Check Ping Result    ${ping_should_pass}    ${result}
 
diff --git a/requirements.txt b/requirements.txt
index 3b51eb8..fbfc319 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@
 flake8
 paramiko
 pexpect
-pylint
+pylint<=2.10.2
 pyyaml
 robotframework
 robotframework-databaselibrary