Network packet test automation with "nping" tool

This change addresses:
    1. Send any number of network packets at any rate
    2. Check packet loss
    3. Checks whether issue is with system or network

Resolves openbmc/openbmc-test-automation#345

Change-Id: I66b07c8924d855ad47fa631914a1992830222f37
Signed-off-by: Prashanth Katti <prkatti1@in.ibm.com>
diff --git a/lib/resource.txt b/lib/resource.txt
index a90b9c8..74d9e5c 100755
--- a/lib/resource.txt
+++ b/lib/resource.txt
@@ -40,6 +40,10 @@
 ${OS_PASSWORD}      ${EMPTY}
 ${OS_WAIT_TIMEOUT}  ${15*60}
 
+# Networking related parameters
+${NETWORK_PORT}     80
+${PACKET_TYPE}      tcp
+
 *** Keywords ***
 Get Inventory Schema
     [Arguments]    ${machine}