def test_front_panel_admindown_port(self, duthosts, enum_rand_one_per_hwsku_frontend_hostname, enum_asic_index,
all_cfg_facts, setup, nbrhosts, nbr_macs, established_arp):
"""
Verify tables, databases, and kernel routes are correctly deleted when the DUT port is admin down/up.
Test Steps
* Admin down interface on DUT.
* On local linecard:
* Verify ARP/NDP entries are removed from CLI for neighbors on down port.
* Verify table entries in ASIC, AppDb are removed for addresses on down port.
* On Supervisor card:
* Verify Chassis App DB entry are removed for only the cleared address. Entries for addresses on other
line cards should still be present.
* On remote linecards:
* Verify table entries in ASICDB, APPDB, and host ARP table are removed for cleared addresses.
* Verify kernel routes for cleared address are deleted.
* Admin interface up, verify recreation after restarting traffic.
Args:
duthosts: duthosts fixture.
enum_rand_one_per_hwsku_frontend_hostname: frontend iteration fixture.
enum_asic_index: asic iteration fixture.
all_cfg_facts: all_cfg_facts fixture from voq/conftest.py
setup: setup fixture for this module.
nbrhosts: nbrhosts fixture.
established_arp: Fixture to establish ARP to all neighbors.
"""
per_host = duthosts[enum_rand_one_per_hwsku_frontend_hostname]
asic = per_host.asics[enum_asic_index if enum_asic_index is not None else 0]
cfg_facts = all_cfg_facts[per_host.hostname][asic.asic_index]['ansible_facts']
neighs = cfg_facts['BGP_NEIGHBOR']
intfs, intfs_to_test = pick_ports(cfg_facts)
logger.info("Will test interfaces: %s", intfs_to_test)
for intf in intfs_to_test:
local_ips = [i.split("/")[0] for i in intfs[intf].keys()] # [u'2064:100::2/64', u'100.0.0.2/24']
neighbors = [n for n in neighs if neighs[n]['local_addr'] in local_ips]
logger.info("Testing neighbors: %s on intf: %s", neighbors, intf)
self.localport_admindown(per_host, intf)
try:
check_neighbors_are_gone(duthosts, all_cfg_facts, per_host, asic, neighbors)
finally:
self.localport_adminup(per_host, intf)
for neighbor in neighbors:
sonic_ping(asic, neighbor)
for neighbor in neighbors:
pytest_assert(wait_until(60, 2, check_arptable_state, per_host, neighbor, "REACHABLE"),
"STATE for neighbor {} did not change to reachable".format(neighbor))
dump_and_verify_neighbors_on_asic(duthosts, per_host, asic, neighbors, nbrhosts, all_cfg_facts, nbr_macs)
def test_neighbor_clear_all(duthosts, enum_rand_one_per_hwsku_frontend_hostname, enum_asic_index,
setup, teardown, nbrhosts, all_cfg_facts, nbr_macs, established_arp):
"""
Verify tables, databases, and kernel routes are correctly deleted when the entire neighbor table is cleared.
Test Steps
* On local linecard:
* Issue `sonic-clear arp` command. and verify all addresses are removed and kernel routes are deleted on
all hosts and ASICs.
* Verify ARP/NDP entries are removed from CLI.
* Verify table entries in ASIC, AppDb are removed for all cleared addresses.
* On Supervisor card:
* Verify Chassis App DB entry are removed for only the cleared address. Entries for addresses on other line
cards should still be present.
* On remote linecards:
* Verify table entries in ASICDB, APPDB, and host ARP table are removed for cleared addresses.
* Verify kernel routes for cleared address are deleted.
* Send full mesh traffic and verify relearn and DB.
Args:
duthosts: duthosts fixture.
setup: setup fixture for this module.
nbrhosts: nbrhosts fixture.
all_cfg_facts: all_cfg_facts fixture from voq/conftest.py
established_arp: Fixture to establish ARP to all neighbors.
"""
per_host = duthosts[enum_rand_one_per_hwsku_frontend_hostname]
asic = per_host.asics[enum_asic_index if enum_asic_index is not None else 0]
cfg_facts = all_cfg_facts[per_host.hostname][asic.asic_index]['ansible_facts']
if 'BGP_NEIGHBOR' in cfg_facts:
neighs = cfg_facts['BGP_NEIGHBOR']
else:
logger.info("No local neighbors for host: %s/%s, skipping", per_host.hostname, asic.asic_index)
return
asic_cmd(asic, "sonic-clear arp")
asic_cmd(asic, "sonic-clear ndp")
logger.info("Wait for clear.")
poll_neighbor_table_delete(duthosts, neighs)
logger.info("Verify neighbors are gone.")
check_neighbors_are_gone(duthosts, all_cfg_facts, per_host, asic, neighs.keys())
# relearn and check
logger.info("Relearn neighbors on all nodes")
ping_all_dut_local_nbrs(duthosts)
check_all_neighbors_present(duthosts, nbrhosts, all_cfg_facts, nbr_macs)
def test_neighbor_clear_one(duthosts, enum_rand_one_per_hwsku_frontend_hostname, enum_asic_index,
setup, teardown, nbrhosts, all_cfg_facts, nbr_macs, established_arp):
"""
Verify tables, databases, and kernel routes are correctly deleted when a single neighbor adjacency is cleared.
Test Steps
* On local linecard:
* Clear single address with command: `ip neigh flush to "addr"`.
* Verify ARP/NDP entry removed from CLI.
* Verify table entries in ASIC, AppDb are removed for only the cleared address.
* On Supervisor card:
* Verify Chassis App DB entry are removed for only the cleared address.
* On remote linecards:
* Verify table entries in ASICDB, APPDB, and host ARP table are removed.
* Verify kernel route for cleared address is deleted.
* Restart traffic, verify relearn.
Args:
duthosts: duthosts fixture.
setup: setup fixture for this module.
nbrhosts: nbrhosts fixture.
all_cfg_facts: all_cfg_facts fixture from voq/conftest.py
established_arp: Fixture to establish ARP to all neighbors.
"""
per_host = duthosts[enum_rand_one_per_hwsku_frontend_hostname]
asic = per_host.asics[enum_asic_index if enum_asic_index is not None else 0]
cfg_facts = all_cfg_facts[per_host.hostname][asic.asic_index]['ansible_facts']
if 'BGP_NEIGHBOR' in cfg_facts:
neighs = cfg_facts['BGP_NEIGHBOR']
else:
logger.info("No local neighbors for host: %s/%s, skipping", per_host.hostname, asic.asic_index)
return
eth_cfg = cfg_facts['INTERFACE'] if 'INTERFACE' in cfg_facts else {}
pos_cfg = cfg_facts['PORTCHANNEL_INTERFACE'] if 'PORTCHANNEL_INTERFACE' in cfg_facts else {}
nbr_to_test = []
if eth_cfg != {}:
nbr_to_test.extend(select_neighbors(eth_cfg, cfg_facts))
if pos_cfg != {}:
nbr_to_test.extend(select_neighbors(pos_cfg, cfg_facts))
untouched_nbrs = [nbr for nbr in neighs if nbr not in nbr_to_test]
logger.info("We will test these neighbors: %s", nbr_to_test)
logger.info("These neighbors should not be affected: %s", untouched_nbrs)
for neighbor in nbr_to_test:
logger.info(
"Flushing neighbor: {} on host {}/{}".format(neighbor, per_host.hostname, asic.asic_index))
asic_cmd(asic, "ip neigh flush to %s" % neighbor)
logger.info("Wait for flush.")
poll_neighbor_table_delete(duthosts, nbr_to_test)
logger.info("Verify neighbors are gone.")
check_neighbors_are_gone(duthosts, all_cfg_facts, per_host, asic, nbr_to_test)
logger.info("Verify other neighbors are not affected.")
dump_and_verify_neighbors_on_asic(duthosts, per_host, asic, untouched_nbrs, nbrhosts, all_cfg_facts, nbr_macs)
# relearn and check
logger.info("Relearn neighbors on all nodes")
ping_all_dut_local_nbrs(duthosts)
logger.info("Check neighbor relearn on all nodes.")
check_all_neighbors_present(duthosts, nbrhosts, all_cfg_facts, nbr_macs)