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authorNeale Ranns <neale.ranns@cisco.com>2020-11-26 08:37:27 +0000
committerOle Tr�an <otroan@employees.org>2020-12-08 09:00:24 +0000
commite2fe097424fb169dfe01421ff17b8ccd0c26b4a6 (patch)
tree2d9993f78d9165c1aba23b1daa4067106da81b45 /test/test_neighbor.py
parent9b8cb5082471dd670066b8ba2872ffbcc35a87f8 (diff)
fib: Source Address Selection
Type: feature Use the FIB to provide SAS (in so far as it is today) - Use the glean adjacency as the record of the connected prefixes = there's a glean per-{interface, protocol, connected-prefix} - Keep the glean up to date with whatever the recieve host prefix is (since it can change) Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Change-Id: I0f3dd1edb1f3fc965af1c7c586709028eb9cdeac
Diffstat (limited to 'test/test_neighbor.py')
-rw-r--r--test/test_neighbor.py91
1 files changed, 90 insertions, 1 deletions
diff --git a/test/test_neighbor.py b/test/test_neighbor.py
index 7c13f9ffb0a..241479a1d30 100644
--- a/test/test_neighbor.py
+++ b/test/test_neighbor.py
@@ -7,7 +7,7 @@ from socket import AF_INET, AF_INET6, inet_pton
from framework import VppTestCase, VppTestRunner
from vpp_neighbor import VppNeighbor, find_nbr
from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, \
- VppIpTable, DpoProto, FibPathType
+ VppIpTable, DpoProto, FibPathType, VppIpInterfaceAddress
from vpp_papi import VppEnum
from vpp_ip import VppIpPuntRedirect
@@ -1721,6 +1721,95 @@ class ARPTestCase(VppTestCase):
self.pg1.unconfig_ip4()
self.pg1.set_table_ip4(0)
+ def test_glean_src_select(self):
+ """ Multi Connecteds """
+
+ #
+ # configure multiple connected subnets on an interface
+ # and ensure that ARP requests for hosts on those subnets
+ # pick up the correct source address
+ #
+ conn1 = VppIpInterfaceAddress(self, self.pg1,
+ "10.0.0.1", 24).add_vpp_config()
+ conn2 = VppIpInterfaceAddress(self, self.pg1,
+ "10.0.1.1", 24).add_vpp_config()
+
+ p1 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg1.remote_ip4,
+ dst="10.0.0.128") /
+ Raw(b'0x5' * 100))
+
+ rxs = self.send_and_expect(self.pg0, [p1], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.0.1",
+ "10.0.0.128")
+
+ p2 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg1.remote_ip4,
+ dst="10.0.1.128") /
+ Raw(b'0x5' * 100))
+
+ rxs = self.send_and_expect(self.pg0, [p2], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.1.1",
+ "10.0.1.128")
+
+ #
+ # add a local address in the same subnet
+ # the source addresses are equivalent. VPP happens to
+ # choose the last one that was added
+ conn3 = VppIpInterfaceAddress(self, self.pg1,
+ "10.0.1.2", 24).add_vpp_config()
+
+ rxs = self.send_and_expect(self.pg0, [p2], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.1.2",
+ "10.0.1.128")
+
+ #
+ # remove
+ #
+ conn3.remove_vpp_config()
+ rxs = self.send_and_expect(self.pg0, [p2], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.1.1",
+ "10.0.1.128")
+
+ #
+ # add back, this time remove the first one
+ #
+ conn3 = VppIpInterfaceAddress(self, self.pg1,
+ "10.0.1.2", 24).add_vpp_config()
+
+ rxs = self.send_and_expect(self.pg0, [p2], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.1.2",
+ "10.0.1.128")
+
+ conn1.remove_vpp_config()
+ rxs = self.send_and_expect(self.pg0, [p2], self.pg1)
+ for rx in rxs:
+ self.verify_arp_req(rx,
+ self.pg1.local_mac,
+ "10.0.1.2",
+ "10.0.1.128")
+
+ # cleanup
+ conn3.remove_vpp_config()
+ conn2.remove_vpp_config()
+
class NeighborStatsTestCase(VppTestCase):
""" ARP/ND Counters """