X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=resources%2Flibraries%2Fpython%2FTLDK%2FUdpTest.py;h=8973fe45d98c51547eeb857ed8b2fc727bd8d4e0;hb=d68951ac245150eeefa6e0f4156e4c1b5c9e9325;hp=adc8aa0ed0f5c333e2ef5beb886b23ea58645952;hpb=6721e7f09aa95bff6622068332a3f56afad9c87b;p=csit.git

diff --git a/resources/libraries/python/TLDK/UdpTest.py b/resources/libraries/python/TLDK/UdpTest.py
index adc8aa0ed0..8973fe45d9 100644
--- a/resources/libraries/python/TLDK/UdpTest.py
+++ b/resources/libraries/python/TLDK/UdpTest.py
@@ -26,7 +26,7 @@ from resources.libraries.python.ssh import SSH
 from resources.libraries.python.TLDK.TLDKConstants import TLDKConstants as con
 from resources.libraries.python.topology import Topology
 
-class UdpTest(object):
+class UdpTest:
     """Test the TLDK UDP function."""
 
     @staticmethod
@@ -73,7 +73,6 @@ class UdpTest(object):
         :type file_prefix: str
         :type dest_ip: str
         :type is_ipv4: bool
-        :returns: none.
         :raises RuntimeError: If failed to execute udpfwd test on the dut node.
         """
         pci_address = Topology.get_interface_pci_addr(dut_node, dut_if)
@@ -114,8 +113,8 @@ class UdpTest(object):
         """
         ssh = SSH()
         ssh.connect(dut_node)
-        cmd = 'cd {0}; tcpdump -nnnn -vvv -r ./{2}/{1}_tx.pcap | ' \
-            'grep \'udp sum ok\' | wc -l' \
+        cmd = 'cd {0}; sudo /usr/sbin/tcpdump -nnnn -vvv -r ./{2}/{1}_tx.pcap' \
+              ' | grep \'udp sum ok\' | wc -l' \
             .format(con.REMOTE_FW_DIR, file_prefix, con.TLDK_TESTCONFIG)
 
         (ret_code, stdout, _) = ssh.exec_command(cmd, timeout=100)