NFVBENCH-33 STLError exception when the packet path drops all packets

Change-Id: Ibe48bb04e1e8a11e920c46792fda261855edc20d
Signed-off-by: Kerim Gokarslan <kgokarsl@cisco.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/nfvbench/traffic_client.py b/nfvbench/traffic_client.py
index ec63944..2a42b87 100644
--- a/nfvbench/traffic_client.py
+++ b/nfvbench/traffic_client.py
@@ -25,6 +25,7 @@ from stats_collector import IterationCollector
 import struct
 import time
 import traffic_gen.traffic_utils as utils
+from trex_stl_lib.api import STLError
 from utils import cast_integer
 
 
@@ -629,8 +630,12 @@ class TrafficClient(object):
 
         # Obtain the average drop rate in for middle load
         middle = (left + right) / 2.0
-        stats, rates = self.__run_search_iteration(middle)
-
+        try:
+            stats, rates = self.__run_search_iteration(middle)
+        except STLError:
+            LOG.exception("Got exception from traffic generator during binary search")
+            self.__targets_found(left, targets, results)
+            return
         # Split target dicts based on the avg drop rate
         left_targets = {}
         right_targets = {}