tests: bgp default orignate behaviour on network commands

test script covers
1. Default originate behaviour using  'network <x.x.x.x>' command
2. Default originate behaviour using aggregate summary command

Signed-off-by: ARShreenidhi <rshreenidhi@vmware.com>

2 files changed, 1550 insertions, 0 deletions

diff --git a/tests/topotests/bgp_default_originate/bgp_default_originate_2links.json b/tests/topotests/bgp_default_originate/bgp_default_originate_2links.json
new file mode 100644
index 000000000..9e98235a2
--- /dev/null
+++ b/tests/topotests/bgp_default_originate/bgp_default_originate_2links.json
@@ -0,0 +1,136 @@
+{
+    "address_types": ["ipv4", "ipv6"],
+    "ipv4base": "192.168.0.0",
+    "ipv4mask": 3024,
+    "ipv6base": "fd00::",
+    "ipv6mask": 64,
+    "link_ip_start": {
+        "ipv4": "192.168.0.0",
+        "v4mask": 24,
+        "ipv6": "fd00::",
+        "v6mask": 64
+    },
+    "lo_prefix": {"ipv4": "1.0.", "v4mask": 32, "ipv6": "2001:db8:f::", "v6mask": 128},
+    "routers": {
+        "r0": {
+            "links": {
+                "lo": {"ipv4": "auto", "ipv6": "auto", "type": "loopback"},
+                "r1": {"ipv4": "auto", "ipv6": "auto"}
+            },
+            "bgp": {
+                "local_as": "100",
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {"neighbor": {"r1": {"dest_link": {"r0": {}}}}}
+                    },
+                    "ipv6": {
+                        "unicast": {"neighbor": {"r1": {"dest_link": {"r0": {}}}}}
+                    }
+                }
+            }
+        },
+        "r1": {
+            "links": {
+                "lo": {"ipv4": "auto", "ipv6": "auto", "type": "loopback"},
+                "r0": {"ipv4": "auto", "ipv6": "auto"},
+                "r2-link1": {"ipv4": "auto", "ipv6": "auto"},
+                "r2-link2": {"ipv4": "auto", "ipv6": "auto"}
+            },
+            "bgp": {
+                "local_as": "200",
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "neighbor": {
+                                "r0": {"dest_link": {"r1": {}}},
+                                "r2": {"dest_link": {"r1-link1": {}, "r1-link2": {}}}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "neighbor": {
+                                "r0": {"dest_link": {"r1": {}}},
+                                "r2": {"dest_link": {"r1-link1": {}, "r1-link2": {}}}
+                            }
+                        }
+                    }
+                }
+            }
+        },
+        "r2": {
+            "links": {
+                "lo": {"ipv4": "auto", "ipv6": "auto", "type": "loopback"},
+                "r1-link1": {"ipv4": "auto", "ipv6": "auto"},
+                "r1-link2": {"ipv4": "auto", "ipv6": "auto"},
+                "r3": {"ipv4": "auto", "ipv6": "auto"}
+            },
+            "bgp": {
+                "local_as": "300",
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "neighbor": {
+                                "r1": {"dest_link": {"r2-link1": {}, "r2-link2": {}}},
+                                "r3": {"dest_link": {"r2": {}}}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "neighbor": {
+                                "r1": {"dest_link": {"r2-link1": {}, "r2-link2": {}}},
+                                "r3": {"dest_link": {"r2": {}}}
+                            }
+                        }
+                    }
+                }
+            }
+        },
+        "r3": {
+            "links": {
+                "lo": {"ipv4": "auto", "ipv6": "auto", "type": "loopback"},
+                "r2": {"ipv4": "auto", "ipv6": "auto"},
+                "r4": {"ipv4": "auto", "ipv6": "auto"}
+            },
+            "bgp": {
+                "local_as": "400",
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "neighbor": {
+                                "r2": {"dest_link": {"r3": {}}},
+                                "r4": {"dest_link": {"r3": {}}}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "neighbor": {
+                                "r2": {"dest_link": {"r3": {}}},
+                                "r4": {"dest_link": {"r3": {}}}
+                            }
+                        }
+                    }
+                }
+            }
+        },
+        "r4": {
+            "links": {
+                "lo": {"ipv4": "auto", "ipv6": "auto", "type": "loopback"},
+                "r3": {"ipv4": "auto", "ipv6": "auto"}
+            },
+            "bgp": {
+                "local_as": "500",
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {"neighbor": {"r3": {"dest_link": {"r4": {}}}}}
+                    },
+                    "ipv6": {
+                        "unicast": {"neighbor": {"r3": {"dest_link": {"r4": {}}}}}
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/tests/topotests/bgp_default_originate/test_bgp_default_originate_2links.py b/tests/topotests/bgp_default_originate/test_bgp_default_originate_2links.py
new file mode 100644
index 000000000..c8cdc7ec5
--- /dev/null
+++ b/tests/topotests/bgp_default_originate/test_bgp_default_originate_2links.py
@@ -0,0 +1,1414 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2022 by VMware, Inc. ("VMware")
+# Used Copyright (c) 2018 by Network Device Education Foundation, Inc. ("NetDEF")
+# in this file.
+#
+# Permission to use, copy, modify, and/or distribute this software
+# for any purpose with or without fee is hereby granted, provided
+# that the above copyright notice and this permission notice appear
+# in all copies.
+# Shreenidhi A R <rshreenidhi@vmware.com>
+# THE SOFTWARE IS PROVIDED "AS IS" AND VMWARE DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
+# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+#
+"""
+Following tests are covered.
+1. Verify default-originate route with default static and network command
+2. Verify default-originate route with aggregate summary command
+"""
+import os
+import sys
+import time
+import pytest
+import datetime
+from copy import deepcopy
+from lib.topolog import logger
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib.topogen import Topogen, get_topogen
+from lib.topojson import build_config_from_json
+from lib.topolog import logger
+
+from lib.bgp import (
+    verify_bgp_convergence,
+    create_router_bgp,
+    verify_bgp_rib,
+    get_dut_as_number,
+    verify_rib_default_route,
+    verify_fib_default_route,
+)
+from lib.common_config import (
+    verify_fib_routes,
+    step,
+    run_frr_cmd,
+    get_frr_ipv6_linklocal,
+    start_topology,
+    apply_raw_config,
+    write_test_header,
+    check_address_types,
+    write_test_footer,
+    reset_config_on_routers,
+    create_static_routes,
+    check_router_status,
+)
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+sys.path.append(os.path.join(CWD, "../lib/"))
+
+# Required to instantiate the topology builder class.
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+
+# Global variables
+topo = None
+NETWORK1_1 = {"ipv4": "198.51.1.1/32", "ipv6": "2001:DB8::1:1/128"}
+NETWORK1_2 = {"ipv4": "198.51.1.2/32", "ipv6": "2001:DB8::1:2/128"}
+NETWORK1_3 = {"ipv4": "198.51.1.3/32", "ipv6": "2001:DB8::1:3/128"}
+NETWORK1_4 = {"ipv4": "198.51.1.4/32", "ipv6": "2001:DB8::1:4/128"}
+NETWORK1_5 = {"ipv4": "198.51.1.5/32", "ipv6": "2001:DB8::1:5/128"}
+
+ipv4_uptime_dict = {
+    "r2": {
+        "static_routes": [
+            {"network": "0.0.0.0/0"},
+        ]
+    }
+}
+
+ipv6_uptime_dict = {
+    "r2": {
+        "static_routes": [
+            {"network": "::/0"},
+        ]
+    }
+}
+
+DEFAULT_ROUTES = {"ipv4": "0.0.0.0/0", "ipv6": "0::0/0"}
+NEXT_HOP_IP = {"ipv4": "Null0", "ipv6": "Null0"}
+
+pytestmark = [pytest.mark.bgpd]
+
+
+def setup_module(mod):
+    """
+    Sets up the pytest environment
+
+    * `mod`: module name
+    """
+    testsuite_run_time = time.asctime(time.localtime(time.time()))
+    logger.info("Testsuite start time: {}".format(testsuite_run_time))
+    logger.info("=" * 40)
+
+    logger.info("Running setup_module to create topology")
+
+    # This function initiates the topology build with Topogen...
+    json_file = "{}/bgp_default_originate_2links.json".format(CWD)
+    tgen = Topogen(json_file, mod.__name__)
+    global topo
+    topo = tgen.json_topo
+    # ... and here it calls Mininet initialization functions.
+
+    # Starting topology, create tmp files which are loaded to routers
+    #  to start daemons and then start routers
+    start_topology(tgen)
+
+    # Creating configuration from JSON
+    build_config_from_json(tgen, topo)
+
+    global ADDR_TYPES
+    global BGP_CONVERGENCE
+    global DEFAULT_ROUTES
+    global DEFAULT_ROUTE_NXT_HOP_LINK1, DEFAULT_ROUTE_NXT_HOP_LINK2
+    ADDR_TYPES = check_address_types()
+    BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo)
+    assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error: {}".format(
+        BGP_CONVERGENCE
+    )
+
+    DEFAULT_ROUTES = {"ipv4": "0.0.0.0/0", "ipv6": "0::0/0"}
+
+    interface = topo["routers"]["r1"]["links"]["r2-link1"]["interface"]
+    ipv6_link_local = get_frr_ipv6_linklocal(tgen, "r1", intf=interface)
+    ipv4_nxt_hop = topo["routers"]["r1"]["links"]["r2-link1"]["ipv4"].split("/")[0]
+    ipv6_nxt_hop = topo["routers"]["r1"]["links"]["r2-link1"]["ipv6"].split("/")[0]
+    DEFAULT_ROUTE_NXT_HOP_LINK1 = {"ipv4": ipv4_nxt_hop, "ipv6": ipv6_link_local}
+
+    interface = topo["routers"]["r1"]["links"]["r2-link2"]["interface"]
+    ipv6_link_local = get_frr_ipv6_linklocal(tgen, "r1", intf=interface)
+    ipv4_nxt_hop = topo["routers"]["r1"]["links"]["r2-link2"]["ipv4"].split("/")[0]
+    ipv6_nxt_hop = topo["routers"]["r1"]["links"]["r2-link2"]["ipv6"].split("/")[0]
+    DEFAULT_ROUTE_NXT_HOP_LINK2 = {"ipv4": ipv4_nxt_hop, "ipv6": ipv6_link_local}
+    logger.info("Running setup_module() done")
+
+
+def teardown_module():
+    """Teardown the pytest environment"""
+
+    logger.info("Running teardown_module to delete topology")
+
+    tgen = get_topogen()
+
+    # Stop toplogy and Remove tmp files
+    tgen.stop_topology()
+
+    logger.info(
+        "Testsuite end time: {}".format(time.asctime(time.localtime(time.time())))
+    )
+    logger.info("=" * 40)
+
+
+#####################################################
+#
+#                      Local API's
+#
+#####################################################
+
+
+def get_rib_route_uptime(tgen, addr_type, dut, input_dict):
+    """
+    Verify route uptime in RIB using "show ip route"
+
+    Parameters
+    ----------
+    * `tgen` : topogen object
+    * `addr_type` : ip type, ipv4/ipv6
+    * `dut`: Device Under Test, for which user wants to test the data
+    * `input_dict` : input dict, has details of static routes
+    * `route_uptime`: uptime of the routes
+
+    Usage
+    -----
+    # Creating static routes for r1
+     input_dict_r1 = {
+            "r1": {
+                "static_routes": [
+                    {
+                        "network": "147.10.13.4/32"
+                    },
+                   {
+                       "network": "147.10.12.0/24"
+                   },
+                    {
+                        "network": "147.10.13.4/32"
+                    },
+                   {
+                       "network": "147.10.13.4/32"
+                   },
+                   {
+                       "network": "147.10.13.4/32"
+                   }
+                ]
+            }
+    }
+
+
+    Returns
+    -------
+    errormsg(str) or True
+    """
+
+    logger.info("Entering lib API: get_rib_route_uptime()")
+    route_time = []
+    out_route_dict = {}
+    router_list = tgen.routers()
+    for routerInput in input_dict.keys():
+        for router, rnode in router_list.items():
+            if router != dut:
+                continue
+
+            logger.info("Checking router %s RIB:", router)
+
+            # Verifying RIB routes
+            if addr_type == "ipv4":
+                command = "show ip route"
+            else:
+                command = "show ipv6 route"
+
+            if "static_routes" in input_dict[routerInput]:
+                static_routes = input_dict[routerInput]["static_routes"]
+
+                for static_route in static_routes:
+                    if "vrf" in static_route and static_route["vrf"] is not None:
+
+                        logger.info(
+                            "[DUT: {}]: Verifying routes for VRF:"
+                            " {}".format(router, static_route["vrf"])
+                        )
+                        cmd = "{} vrf {}".format(command, static_route["vrf"])
+
+                    else:
+                        cmd = "{}".format(command)
+
+                    cmd = "{} json".format(cmd)
+
+                    rib_routes_json = run_frr_cmd(rnode, cmd, isjson=True)
+
+                    if bool(rib_routes_json) is False:
+                        errormsg = "No route found in rib of router {}..".format(router)
+                        return errormsg
+                    network = static_route["network"]
+                    route_time.append(rib_routes_json[network][0]["uptime"])
+
+    logger.info("Exiting lib API: get_rib_route_uptime()")
+    return route_time
+
+
+def verify_the_uptime(time_stamp_before, time_stamp_after, incremented=None):
+    """
+    time_stamp_before : string the time stamp captured
+    time_stamp_after : string the time stamp captured
+    """
+    uptime_before = datetime.datetime.strptime(time_stamp_before[0], "%H:%M:%S")
+    uptime_after = datetime.datetime.strptime(time_stamp_after[0], "%H:%M:%S")
+
+    if incremented == True:
+        if uptime_before < uptime_after:
+            logger.info(
+                "  The Uptime [{}] is incremented than [{}].......PASSED ".format(
+                    time_stamp_before, time_stamp_after
+                )
+            )
+            return True
+        else:
+            logger.error(
+                "  The Uptime [{}] is expected to be incremented than [{}].......FAILED ".format(
+                    time_stamp_before, time_stamp_after
+                )
+            )
+            return False
+    else:
+        logger.info(
+            "  The Uptime [{}] is not incremented than [{}] ".format(
+                time_stamp_before, time_stamp_after
+            )
+        )
+        return True
+
+
+#####################################################
+#
+#                      Testcases
+#
+#####################################################
+
+
+def test_verify_bgp_default_originate_with_default_static_route_p1(request):
+    """
+    Summary: "Verify default-originate route with default static and network command  "
+
+    """
+    tgen = get_topogen()
+    global BGP_CONVERGENCE, DEFAULT_ROUTE_NXT_HOP_LINK1, DEFAULT_ROUTE_NXT_HOP_LINK2, DEFAULT_ROUTES
+
+    if BGP_CONVERGENCE != True:
+        pytest.skip("skipped because of BGP Convergence failure")
+    # test case name
+    tc_name = request.node.name
+    write_test_header(tc_name)
+    if tgen.routers_have_failure():
+        check_router_status(tgen)
+    reset_config_on_routers(tgen)
+
+    step("Configure 2 link between R1 and R2")
+    step("Configure IPV4 and IPV6 EBGP between R1 and R2  both the links")
+    step("Configure default-originate on R1 IPv4 and IPv6 BGP session link-1 only ")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {"r2": {"dest-link": "r1-link1"}}
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {"r2": {"dest-link": "r1-link1"}}
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Verify IPv4/IPv6 default originate routes present on R2 nexthop as link-1")
+    for addr_type in ADDR_TYPES:
+        static_routes_input = {
+            "r2": {
+                "static_routes": [
+                    {
+                        "network": [DEFAULT_ROUTES[addr_type]],
+                        "next_hop": DEFAULT_ROUTE_NXT_HOP_LINK1[addr_type],
+                    }
+                ]
+            }
+        }
+
+        result = verify_fib_routes(
+            tgen,
+            addr_type,
+            "r2",
+            static_routes_input,
+            next_hop=DEFAULT_ROUTE_NXT_HOP_LINK1[addr_type],
+        )
+        assert result is True, "Testcase {} : Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+        result = verify_bgp_rib(
+            tgen,
+            addr_type,
+            "r2",
+            static_routes_input,
+            next_hop=DEFAULT_ROUTE_NXT_HOP_LINK1[addr_type],
+        )
+        assert result is True, "Testcase {} : Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+    step(
+        "Configure  network command on R1 (0.0.0.0/0 and 0::0/0) for IPv4 and IPv6 address family "
+    )
+    DEFAULT_ROUTES = {"ipv4": "0.0.0.0/0", "ipv6": "0::0/0"}
+    for addr_type in ADDR_TYPES:
+        input_advertise = {
+            "r1": {
+                "bgp": {
+                    "address_family": {
+                        addr_type: {
+                            "unicast": {
+                                "advertise_networks": [
+                                    {"network": [DEFAULT_ROUTES[addr_type]]}
+                                ]
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        result = create_router_bgp(tgen, topo, input_advertise)
+        assert result is True, "Testcase {} :Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+    step("No change on IPv4/IPv6  default-originate route advertised from link1")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("verify 0.0.0.0/0 and 0::0/0 route also get advertised from link-2  ")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step(
+        "Before removing default originate from R1 link -1 IPv4 and IPv6 address family taking the uptime snapshot"
+    )
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Remove default originate from R1 link -1 IPv4 and IPv6 address family ")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Routes must be learned from network command")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("After removing the default originate  on R1 taking the uptime snapshot")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After removing the default-originate uptime should get reset for link-1 learn route"
+    )
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before configuring default - originate")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "Configure default-originate on R1 link-1 again for IPv4 and IPv6 address family"
+    )
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Verify No change on R2 routing and BGP table for both the links ")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking snapshot after configuring default - originate")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After configuring the default-originate uptime should not get reset for link-1 learn route"
+    )
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=True)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=True)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before  removing  network 0.0.0.0  ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Remove network command from R1 IPv4/IPv6 address family ")
+    DEFAULT_ROUTES = {"ipv4": "0.0.0.0/0", "ipv6": "0::0/0"}
+    for addr_type in ADDR_TYPES:
+        input_advertise = {
+            "r1": {
+                "bgp": {
+                    "address_family": {
+                        addr_type: {
+                            "unicast": {
+                                "advertise_networks": [
+                                    {
+                                        "network": [DEFAULT_ROUTES[addr_type]],
+                                        "delete": True,
+                                    }
+                                ]
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        result = create_router_bgp(tgen, topo, input_advertise)
+        assert result is True, "Testcase {} :Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+    step(
+        "Verify 0.0.0.0/0 and 0::0/0 route get removed from link-2  and default-originate IPv4/IPv6 route learn on link-1"
+    )
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert (
+        result is not True
+    ), "Testcase {} : Failed \n Route from link2 is not expected \n Error: {}".format(
+        tc_name, result
+    )
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert (
+        result is not True
+    ), "Testcase {} : Failed\n Route from link2 is not expected \n  Error: {}".format(
+        tc_name, result
+    )
+
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After removing default originate command on R1 verify that the uptime got reset on R2"
+    )
+
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before  configuring static route  network")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "Configure static default route for IPv4 and IPv6 (0.0.0.0/0 next-hop Null0 and 0::0/0 next-hop Null0) on R1"
+    )
+    static_routes_input = {
+        "r1": {
+            "static_routes": [
+                {
+                    "network": "0.0.0.0/0",
+                    "next_hop": NEXT_HOP_IP["ipv4"],
+                },
+                {
+                    "network": "0::0/0",
+                    "next_hop": NEXT_HOP_IP["ipv6"],
+                },
+            ]
+        }
+    }
+    result = create_static_routes(tgen, static_routes_input)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("verifyIPv4 and IPv6 static routes are configure and up on R1 ")
+    for addr_type in ADDR_TYPES:
+        static_routes_input = {
+            "r1": {
+                "static_routes": [
+                    {
+                        "network": "0.0.0.0/0",
+                        "next_hop": NEXT_HOP_IP["ipv4"],
+                    },
+                    {
+                        "network": "0::0/0",
+                        "next_hop": NEXT_HOP_IP["ipv6"],
+                    },
+                ]
+            }
+        }
+        result = verify_fib_routes(tgen, addr_type, "r1", static_routes_input)
+        assert result is True, "Testcase {} : Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+    step("Configure redistribute static on IPv4 and IPv6 address family")
+    redistribute_static = {
+        "r1": {
+            "bgp": {
+                "address_family": {
+                    "ipv4": {"unicast": {"redistribute": [{"redist_type": "static"}]}},
+                    "ipv6": {"unicast": {"redistribute": [{"redist_type": "static"}]}},
+                }
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, redistribute_static)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Verify No change on IPv4/IPv6  default-originate route advertised from link1")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("verify 0.0.0.0/0 and 0::0/0 route also get advertised from link-2 ")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert (
+        result is not True
+    ), "Testcase {} : Failed\n Best Path sould be advertised in routes\n Error: {}".format(
+        tc_name, result
+    )
+
+    step("Taking uptime snapshot before  removing  default originate")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Remove default-originate from link-1 from IPv4 and IPv6 neighbor ")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot after  removing  default originate")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("verify the up time , up time should get reset ")
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Verify No change on IPv4/IPv6  default-originate route advertised from link1")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before  configuring  default originate")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        " Configure default-originate on link-1 again for IPv4 and IPv6 address family"
+    )
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("Verify No change on IPv4/IPv6  default-originate route advertised from link1")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert result is not True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot after  configuring  default originate")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("After configuring the default originate the uptime should not get reset ")
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before  removing   redisctribute static ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Remove redistribute static from IPv4 and IPv6 address family ")
+    input_dict_1 = {
+        "r1": {
+            "bgp": {
+                "local_as": get_dut_as_number(tgen, dut="r1"),
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "redistribute": [{"redist_type": "static", "delete": True}]
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "redistribute": [{"redist_type": "static", "delete": True}]
+                        }
+                    },
+                },
+            }
+        }
+    }
+
+    result = create_router_bgp(tgen, topo, input_dict_1)
+    assert result is True, "Testcase {} :Failed \n Error: {}".format(tc_name, result)
+
+    step("Verify No change on IPv4/IPv6  default-originate route advertised from link1")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert result is not True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert result is not True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Taking uptime snapshot before  removing   redisctribute static ")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("After removing default originate the route uptime should get reset ")
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=True)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=True)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    write_test_footer(tc_name)
+
+
+def test_verify_bgp_default_originate_with_aggregate_summary_p1(request):
+    """
+    Summary: "Verify default-originate route with aggregate summary command"
+    """
+    tgen = get_topogen()
+    global BGP_CONVERGENCE
+    tc_name = request.node.name
+    write_test_header(tc_name)
+    if tgen.routers_have_failure():
+        check_router_status(tgen)
+    reset_config_on_routers(tgen)
+    if BGP_CONVERGENCE != True:
+        pytest.skip("skipped because of BGP Convergence failure")
+
+    step("After changing the BGP AS Path Verify the BGP Convergence")
+    BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo)
+    assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error: {}".format(
+        BGP_CONVERGENCE
+    )
+
+    step("Configure default-originate on R1 IPv4 and IPv6 BGP session link-1 only")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {"r2": {"dest-link": "r1-link1"}}
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {"r2": {"dest-link": "r1-link1"}}
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step(
+        "Verify IPv4/IPv6 default originate routes present on R2 nexthop as link-1,on R2"
+    )
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Configure 5 static  route for IPv4 and IPv6  on R0")
+    for addr_type in ADDR_TYPES:
+        input_advertise = {
+            "r1": {
+                "bgp": {
+                    "address_family": {
+                        addr_type: {
+                            "unicast": {
+                                "advertise_networks": [
+                                    {
+                                        "network": [NETWORK1_1[addr_type]],
+                                        "next_hop": NEXT_HOP_IP[addr_type],
+                                    },
+                                    {
+                                        "network": [NETWORK1_2[addr_type]],
+                                        "next_hop": NEXT_HOP_IP[addr_type],
+                                    },
+                                    {
+                                        "network": [NETWORK1_3[addr_type]],
+                                        "next_hop": NEXT_HOP_IP[addr_type],
+                                    },
+                                    {
+                                        "network": [NETWORK1_4[addr_type]],
+                                        "next_hop": NEXT_HOP_IP[addr_type],
+                                    },
+                                    {
+                                        "network": [NETWORK1_5[addr_type]],
+                                        "next_hop": NEXT_HOP_IP[addr_type],
+                                    },
+                                ]
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        result = create_router_bgp(tgen, topo, input_advertise)
+        assert result is True, "Testcase {} :Failed \n Error: {}".format(
+            tc_name, result
+        )
+
+    step("Before configuring the aggregate route taking uptime snapshot  ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Configure aggregate summary command  for IPv4 and IPv6 address family ")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    raw_config = {
+        "r1": {
+            "raw_config": [
+                "router bgp {}".format(local_as),
+                "address-family ipv4 unicast",
+                "aggregate-address {} summary-only".format("0.0.0.0/0 "),
+                "exit-address-family",
+                "address-family ipv6 unicast",
+                "aggregate-address {} summary-only".format("0::0/0"),
+                "exit-address-family",
+            ]
+        }
+    }
+    result = apply_raw_config(tgen, raw_config)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step(
+        "verify that no change on IPv4/IPv6  default-originate route advertised from link1  0.0.0.0/0 and 0::0/0 route also get advertised from link-2    on R2"
+    )
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("After configuring the aggregate route taking uptime snapshot  ")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After Configuring  the aggregate route uptime should get reset for link-1 learn route"
+    )
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Before removing default originate  taking uptime snapshot ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("Remove default originate from R1 link -1 IPv4 and IPv6 address family")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {"dest-link": "r1-link1", "delete": True}
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step(
+        "verify that no change on IPv4/IPv6  default-originate route advertised from link1  0.0.0.0/0 and 0::0/0 route also get advertised from link-2    on R2"
+    )
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("After removing default origin taking uptime snapshot  ")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After removing the default-originate uptime should get reset for link-1 learn route"
+    )
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Before Configuring default origin taking uptime snapshot ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "Configure default-originate on R1 link-1 again for IPv4 and IPv6 address family"
+    )
+    local_as = get_dut_as_number(tgen, dut="r1")
+    default_originate_config = {
+        "r1": {
+            "bgp": {
+                "local_as": local_as,
+                "address_family": {
+                    "ipv4": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                    "ipv6": {
+                        "unicast": {
+                            "default_originate": {
+                                "r2": {
+                                    "dest-link": "r1-link1",
+                                }
+                            }
+                        }
+                    },
+                },
+            }
+        }
+    }
+    result = create_router_bgp(tgen, topo, default_originate_config)
+    assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
+
+    step("After Configuring  default originate  taking uptime snapshot")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step(
+        "After Configuring  the default-originate uptime should get reset for link-1 learn route"
+    )
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Before removing aggregate -summary command taking the uptime snapshot ")
+    uptime_before_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_before_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("remove aggregate summary command  for IPv4 and IPv6 address family ")
+    local_as = get_dut_as_number(tgen, dut="r1")
+    raw_config = {
+        "r1": {
+            "raw_config": [
+                "router bgp {}".format(local_as),
+                "address-family ipv4 unicast",
+                "no aggregate-address {} summary-only".format("0.0.0.0/0"),
+                "exit-address-family",
+                "address-family ipv6 unicast",
+                "no aggregate-address {} summary-only".format("0::0/0"),
+                "exit-address-family",
+            ]
+        }
+    }
+    result = apply_raw_config(tgen, raw_config)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Verify Default-originate IPv4/IPv6 route learn on link-1 ")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK1,
+    )
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("Verify 0.0.0.0/0 and 0::0/0 route get removed from link-2 ")
+    result = verify_rib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert result is not True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    result = verify_fib_default_route(
+        tgen,
+        topo,
+        dut="r2",
+        routes=DEFAULT_ROUTES,
+        expected_nexthop=DEFAULT_ROUTE_NXT_HOP_LINK2,
+        expected=False,
+    )
+    assert result is not True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    step("After removing aggregate -summary command taking the uptime snapshot ")
+    uptime_after_ipv4 = get_rib_route_uptime(tgen, "ipv4", "r2", ipv4_uptime_dict)
+    uptime_after_ipv6 = get_rib_route_uptime(tgen, "ipv6", "r2", ipv6_uptime_dict)
+
+    step("After removing aggregate command uptime should get reset ")
+    result = verify_the_uptime(uptime_before_ipv4, uptime_after_ipv4, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+
+    result = verify_the_uptime(uptime_before_ipv6, uptime_after_ipv6, incremented=False)
+    assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result)
+    write_test_footer(tc_name)
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))