- Added Description

Signed-off-by: Sushant Bawiskar <sushant.bawiskar@candelatech.com>

py-scripts/test_ip_variable_time2.py

@@ -1,5 +1,36 @@
 #!/usr/bin/env python3
 """
+NAME: test_ip_variable_time2.py
+
+Note: This script can be used to create multiple layer3 traffic. If you want to create multiple layer3 traffic without
+    disturbing existing layer3 traffic then this script can be used.
+
+PURPOSE:
+test_ip_variable_time2.py will create stations and endpoints to generate and verify layer-3 traffic over ipv4 or ipv6.
+This script replaces the functionality of test_ipv4_variable_time.py and test_ipv6_variable_time.py
+This Script has two working modes:
+    Mode 1:
+        When station is not available,
+
+        This script will create a variable number of stations each with their own set of cross-connects and endpoints.
+        It will then create layer 3 traffic over a specified amount of time, testing for increased traffic at regular intervals.
+        This test will pass if all stations increase traffic over the full test duration.
+
+        ex. --mgr 192.168.1.101 --radio wiphy1 --ssid vap --test_duration 60s --traffic_type lf_udp --a_min 600000000
+        --b_min 600000000 --upstream_port vap0000 --mode '5' --num_stations 2
+
+    Mode 2:
+
+        When station is already available This script will create layer3 cross-connects and endpoints It will then
+        create layer 3 traffic over a specified amount of time, testing for increased traffic at regular intervals.
+        This test will pass if all stations increase traffic over the full test duration.
+
+        ex. --mgr 192.168.1.101 --radio wiphy1 --ssid vap --test_duration 60s --traffic_type lf_udp --a_min 600000000
+        --b_min 600000000 --upstream_port vap0000 --mode '5' --use_existing_sta --sta_names sta0000
+
+Use './test_ip_variable_time.py --help' to see command line usage and options
+Copyright 2021 Candela Technologies Inc
+License: Free to distribute and modify. LANforge systems must be licensed.
 """
 import sys
 import os