diff --git a/tests/route/test_route_flap.py b/tests/route/test_route_flap.py
index f98f7e380f5..72a008a1361 100644
--- a/tests/route/test_route_flap.py
+++ b/tests/route/test_route_flap.py
@@ -11,6 +11,7 @@
 from ptf.mask import Mask
 from natsort import natsorted
 from tests.common.helpers.assertions import pytest_assert
+from tests.common.plugins.loganalyzer.loganalyzer import LogAnalyzer
 
 pytestmark = [
     pytest.mark.topology("any"),
@@ -286,6 +287,12 @@ def test_route_flap(duthosts, tbinfo, ptfhost, ptfadapter,
     nexthop = common_config.get('nhipv4', NHIPV4)
     duthost = duthosts[enum_rand_one_per_hwsku_frontend_hostname]
     asichost = duthost.asic_instance(enum_rand_one_frontend_asic_index)
+
+    ignoreRegex = [
+        ".*ERR.*\"missed_FRR_routes\".*"
+    ]
+    loganalyzer = LogAnalyzer(ansible_host=duthost, marker_prefix="stress_routes_helper")
+    loganalyzer.ignore_regex.extend(ignoreRegex)
     # On dual-tor, unicast upstream l3 packet destination mac should be vlan mac
     # After routing, output packet source mac will be replaced with port-channel mac (same as dut_mac)
     # On dual-tor, vlan mac is different with dut_mac. U0/L0 use same vlan mac for AR response