fix for mocked T0 DToR TC failures due to config push delta (#8363)

* fix for failures in orchagent_standby_tor_downstream script

* Update test_orchagent_standby_tor_downstream.py

* fix for mocked T0 DToR TC failures due to config push delta

tests/common/dualtor/dual_tor_mock.py

@@ -343,7 +343,7 @@ def apply_peer_switch_table_to_dut(cleanup_mocked_configs, rand_selected_dut, mo
         restart_swss = True
     cmd = 'redis-cli -n 4 HSET "{}" "{}" "{}"'.format(device_meta_key, 'subtype', 'DualToR')
     dut.shell(cmd=cmd)
-    if restart_swss:
+    if ((restart_swss) and (dut.get_asic_name() != 'gb')):
         # Restart swss on TH2 or TD3 platform to trigger syncd restart to regenerate config.bcm
         # We actually need to restart syncd only, but restarting syncd will also trigger swss
         # being restarted, and it costs more time than restarting swss

tests/dualtor/test_ipinip.py

@@ -114,6 +114,7 @@ def stop_garp(ptfhost):
 
     if is_t0_mocked_dualtor(tbinfo):        # noqa F405
         request.getfixturevalue('apply_active_state_to_orchagent')
+        time.sleep(30)
     else:
         request.getfixturevalue('toggle_all_simulator_ports_to_rand_selected_tor')
 
@@ -126,7 +127,6 @@ def stop_garp(ptfhost):
 
     ptf_t1_intf = random.choice(get_t1_ptf_ports(tor, tbinfo))
     logging.info("send encapsulated packet from ptf t1 interface %s", ptf_t1_intf)
-    time.sleep(10)
     with stop_garp(ptfhost):
         ptfadapter.dataplane.flush()
         testutils.send(ptfadapter, int(ptf_t1_intf.strip("eth")), encapsulated_packet)

tests/dualtor/test_orchagent_standby_tor_downstream.py

@@ -360,19 +360,22 @@ def monitor_tunnel_and_server_traffic(torhost, expect_tunnel_traffic=True, expec
     logger.info("Step 1.1: Add route to a nexthop which is a standby Neighbor")
     set_mux_state(rand_selected_dut, tbinfo, 'standby', tor_mux_intfs, toggle_all_simulator_ports)
     add_nexthop_routes(rand_selected_dut, random_dst_ip, nexthops=[target_server])
+    time.sleep(30)
     logger.info("Step 1.2: Verify traffic to this route dst is forwarded to Active ToR and equally distributed")
     check_tunnel_balance(**test_params)
     monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=False, expect_tunnel_traffic=True)
 
     logger.info("Stage 2: Verify Active Forwarding")
     logger.info("Step 2.1: Simulate Mux state change to active")
     set_mux_state(rand_selected_dut, tbinfo, 'active', tor_mux_intfs, toggle_all_simulator_ports)
+    time.sleep(30)
     logger.info("Step 2.2: Verify traffic to this route dst is forwarded directly to server")
     monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=True, expect_tunnel_traffic=False)
 
     logger.info("Stage 3: Verify Standby Forwarding Again")
     logger.info("Step 3.1: Simulate Mux state change to standby")
     set_mux_state(rand_selected_dut, tbinfo, 'standby', tor_mux_intfs, toggle_all_simulator_ports)
+    time.sleep(30)
     logger.info("Step 3.2: Verify traffic to this route dst \
                 is now redirected back to Active ToR and equally distributed")
     monitor_tunnel_and_server_traffic(rand_selected_dut, expect_server_traffic=False, expect_tunnel_traffic=True)