Merge pull request #8295 from opensourcerouting/ospf6-topo-stabilize

topotest: stabilize OSPFv3 topology

tests/topotests/ospf-topo1/r1/ospf6d.conf-pre-v4

@@ -1,9 +0,0 @@
-!
-router ospf6
- router-id 10.0.255.1
- redistribute kernel
- redistribute connected
- redistribute static
- interface r1-eth0 area 0.0.0.0
- interface r1-eth1 area 0.0.0.0
-!

tests/topotests/ospf-topo1/r2/ospf6d.conf-pre-v4

@@ -1,9 +0,0 @@
-!
-router ospf6
- router-id 10.0.255.2
- redistribute kernel
- redistribute connected
- redistribute static
- interface r2-eth0 area 0.0.0.0
- interface r2-eth1 area 0.0.0.0
-!

tests/topotests/ospf-topo1/r3/ospf6d.conf-pre-v4

@@ -1,10 +0,0 @@
-!
-router ospf6
- router-id 10.0.255.3
- redistribute kernel
- redistribute connected
- redistribute static
- interface r3-eth0 area 0.0.0.0
- interface r3-eth1 area 0.0.0.0
- interface r3-eth2 area 0.0.0.1
-!

tests/topotests/ospf-topo1/r4/ospf6d.conf-pre-v4

@@ -1,9 +0,0 @@
-!
-router ospf6
- router-id 10.0.255.4
- redistribute kernel
- redistribute connected
- redistribute static
- interface r4-eth0 area 0.0.0.1
- interface r4-eth1 area 0.0.0.1
-!

tests/topotests/ospf-topo1/test_ospf_topo1.py

@@ -93,8 +93,6 @@ def setup_module(mod):
     tgen.start_topology()
 
     ospf6_config = "ospf6d.conf"
-    if tgen.gears["r1"].has_version("<", "4.0"):
-        ospf6_config = "ospf6d.conf-pre-v4"
 
     router_list = tgen.routers()
     for rname, router in router_list.items():
@@ -118,6 +116,78 @@ def teardown_module(mod):
     tgen.stop_topology()
 
 
+def test_wait_protocol_convergence():
+    "Wait for OSPFv2/OSPFv3 to converge"
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    logger.info("waiting for protocols to converge")
+
+    def expect_ospfv2_neighbor_full(router, neighbor):
+        "Wait until OSPFv2 convergence."
+        logger.info("waiting OSPFv2 router '{}'".format(router))
+
+        def run_command_and_expect():
+            """
+            Function that runs command and expect the following outcomes:
+             * Full/DR
+             * Full/DROther
+             * Full/Backup
+            """
+            result = tgen.gears[router].vtysh_cmd('show ip ospf neighbor json',
+                                                  isjson=True)
+            if topotest.json_cmp(result, {"neighbors": {neighbor: [
+                    {"state": "Full/DR"}]}}) is None:
+                return None
+
+            if topotest.json_cmp(result, {"neighbors": {neighbor: [
+                    {"state": "Full/DROther"}]}}) is None:
+                return None
+
+            return topotest.json_cmp(result, {"neighbors": {neighbor: [
+                {"state": "Full/Backup"}]}})
+
+        _, result = topotest.run_and_expect(run_command_and_expect, None,
+                                            count=130, wait=1)
+        assertmsg = '"{}" convergence failure'.format(router)
+        assert result is None, assertmsg
+
+
+    def expect_ospfv3_neighbor_full(router, neighbor):
+        "Wait until OSPFv3 convergence."
+        logger.info("waiting OSPFv3 router '{}'".format(router))
+        test_func = partial(
+            topotest.router_json_cmp,
+            tgen.gears[router],
+            "show ipv6 ospf6 neighbor json",
+            {"neighbors": [{"neighborId": neighbor, "state": "Full"}]},
+        )
+        _, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
+        assertmsg = '"{}" convergence failure'.format(router)
+        assert result is None, assertmsg
+
+    # Wait for OSPFv2 convergence
+    expect_ospfv2_neighbor_full("r1", "10.0.255.2")
+    expect_ospfv2_neighbor_full("r1", "10.0.255.3")
+    expect_ospfv2_neighbor_full("r2", "10.0.255.1")
+    expect_ospfv2_neighbor_full("r2", "10.0.255.3")
+    expect_ospfv2_neighbor_full("r3", "10.0.255.1")
+    expect_ospfv2_neighbor_full("r3", "10.0.255.2")
+    expect_ospfv2_neighbor_full("r3", "10.0.255.4")
+    expect_ospfv2_neighbor_full("r4", "10.0.255.3")
+
+    # Wait for OSPFv3 convergence
+    expect_ospfv3_neighbor_full("r1", "10.0.255.2")
+    expect_ospfv3_neighbor_full("r1", "10.0.255.3")
+    expect_ospfv3_neighbor_full("r2", "10.0.255.1")
+    expect_ospfv3_neighbor_full("r2", "10.0.255.3")
+    expect_ospfv3_neighbor_full("r3", "10.0.255.1")
+    expect_ospfv3_neighbor_full("r3", "10.0.255.2")
+    expect_ospfv3_neighbor_full("r3", "10.0.255.4")
+    expect_ospfv3_neighbor_full("r4", "10.0.255.3")
+
+
 def compare_show_ipv6_ospf6(rname, expected):
     """
     Calls 'show ipv6 ospf6 route' for router `rname` and compare the obtained

tests/topotests/ospf6-topo1/r1/ospf6d.conf

@@ -11,9 +11,13 @@ debug ospf6 flooding
 !
 interface r1-stubnet
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 interface r1-sw5
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 router ospf6
  ospf6 router-id 10.0.0.1

tests/topotests/ospf6-topo1/r2/ospf6d.conf

@@ -11,9 +11,13 @@ debug ospf6 flooding
 !
 interface r2-stubnet
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 interface r2-sw5
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 router ospf6
  ospf6 router-id 10.0.0.2

tests/topotests/ospf6-topo1/r3/ospf6d.conf

@@ -11,12 +11,18 @@ debug ospf6 flooding
 !
 interface r3-stubnet
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 interface r3-sw5
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 interface r3-sw6
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 router ospf6
  ospf6 router-id 10.0.0.3

tests/topotests/ospf6-topo1/r4/ospf6d.conf

@@ -11,9 +11,13 @@ debug ospf6 flooding
 !
 interface r4-stubnet
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 interface r4-sw6
  ipv6 ospf6 network broadcast
+ ipv6 ospf6 hello-interval 2
+ ipv6 ospf6 dead-interval 10
 !
 router ospf6
  ospf6 router-id 10.0.0.4

tests/topotests/ospf6-topo1/test_ospf6_topo1.py

@@ -185,70 +185,38 @@ def teardown_module(mod):
     tgen.stop_topology()
 
 
-def test_ospf6_converged():
-
+def test_wait_protocol_convergence():
+    "Wait for OSPFv3 to converge"
     tgen = get_topogen()
-
-    # Don't run this test if we have any failure.
     if tgen.routers_have_failure():
         pytest.skip(tgen.errors)
 
-    # For debugging, uncomment the next line
-    # tgen.mininet_cli()
+    logger.info("waiting for protocols to converge")
 
-    # Wait for OSPF6 to converge  (All Neighbors in either Full or TwoWay State)
-    logger.info("Waiting for OSPF6 convergence")
+    def expect_neighbor_full(router, neighbor):
+        "Wait until OSPFv3 convergence."
+        logger.info("waiting OSPFv3 router '{}'".format(router))
+        test_func = partial(
+            topotest.router_json_cmp,
+            tgen.gears[router],
+            "show ipv6 ospf6 neighbor json",
+            {"neighbors": [{"neighborId": neighbor, "state": "Full"}]},
+        )
+        _, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
+        assertmsg = '"{}" convergence failure'.format(router)
+        assert result is None, assertmsg
 
-    # Set up for regex
-    pat1 = re.compile("^[0-9]")
-    pat2 = re.compile("Full")
+    expect_neighbor_full("r1", "10.0.0.2")
+    expect_neighbor_full("r1", "10.0.0.3")
 
-    timeout = 60
-    while timeout > 0:
-        logger.info("Timeout in %s: " % timeout),
-        sys.stdout.flush()
+    expect_neighbor_full("r2", "10.0.0.1")
+    expect_neighbor_full("r2", "10.0.0.3")
 
-        # Look for any node not yet converged
-        for router, rnode in tgen.routers().items():
-            resStr = rnode.vtysh_cmd("show ipv6 ospf neigh")
+    expect_neighbor_full("r3", "10.0.0.1")
+    expect_neighbor_full("r3", "10.0.0.2")
+    expect_neighbor_full("r3", "10.0.0.4")
 
-            isConverged = False
-
-            for line in resStr.splitlines():
-                res1 = pat1.match(line)
-                if res1:
-                    isConverged = True
-                    res2 = pat2.search(line)
-
-                    if res2 == None:
-                        isConverged = False
-                        break
-
-            if isConverged == False:
-                logger.info("Waiting for {}".format(router))
-                sys.stdout.flush()
-                break
-
-        if isConverged:
-            logger.info("Done")
-            break
-        else:
-            sleep(5)
-            timeout -= 5
-
-    if timeout == 0:
-        # Bail out with error if a router fails to converge
-        ospfStatus = rnode.vtysh_cmd("show ipv6 ospf neigh")
-        assert False, "OSPFv6 did not converge:\n{}".format(ospfStatus)
-
-    logger.info("OSPFv3 converged.")
-
-    # For debugging, uncomment the next line
-    # tgen.mininet_cli()
-
-    # Make sure that all daemons are still running
-    if tgen.routers_have_failure():
-        assert tgen.errors == "", tgen.errors
+    expect_neighbor_full("r4", "10.0.0.3")
 
 
 def compare_show_ipv6(rname, expected):