bgpd, topotests: bmp imported bgp, add loc-rib peer up support when router-id changes

Add the emission of a loc-rib peer up event for an imported bgp instance
at route-id reconfiguration. Add a test to control in the BMP collector
that the peer up message is the one from that BGP instance.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/tests/topotests/bgp_bmp/test_bgp_bmp_3.py b/tests/topotests/bgp_bmp/test_bgp_bmp_3.py
index 088f4cb45..06d9f1f9e 100644
--- a/tests/topotests/bgp_bmp/test_bgp_bmp_3.py
+++ b/tests/topotests/bgp_bmp/test_bgp_bmp_3.py
@@ -263,6 +263,57 @@ def test_peer_down():
     assert success, "Checking the updated prefixes has been failed !."
 
 
+def test_bgp_routerid_changed():
+    """
+    Checking for BGP loc-rib up messages with new router-id
+    """
+    tgen = get_topogen()
+
+    tgen.gears["r1import"].vtysh_cmd(
+        """
+        configure terminal
+        router bgp 65501 vrf vrf1
+        bgp router-id 192.168.1.77
+        """
+    )
+
+    peers = ["0.0.0.0"]
+
+    logger.info(
+        "checking for BMP peer down LOC-RIB message with router-id set to 192.168.0.1."
+    )
+    test_func = partial(
+        bmp_check_for_peer_message,
+        peers,
+        "peer down",
+        tgen.gears["bmp1import"],
+        os.path.join(tgen.logdir, "bmp1import", "bmp.log"),
+        is_rd_instance=True,
+        peer_bgp_id="192.168.0.1",
+    )
+    success, _ = topotest.run_and_expect(test_func, True, count=30, wait=1)
+    assert (
+        success
+    ), "Checking the BMP peer down LOC-RIB message with router-id set to 192.168.0.1 failed !."
+
+    logger.info(
+        "checking for BMP peer up LOC-RIB message with router-id set to 192.168.1.77."
+    )
+    test_func = partial(
+        bmp_check_for_peer_message,
+        peers,
+        "peer up",
+        tgen.gears["bmp1import"],
+        os.path.join(tgen.logdir, "bmp1import", "bmp.log"),
+        is_rd_instance=True,
+        peer_bgp_id="192.168.1.77",
+    )
+    success, _ = topotest.run_and_expect(test_func, True, count=30, wait=1)
+    assert (
+        success
+    ), "Checking the BMP peer up LOC-RIB message with router-id set to 192.168.1.77 failed !."
+
+
 if __name__ == "__main__":
     args = ["-s"] + sys.argv[1:]
     sys.exit(pytest.main(args))