ip-neighbor: ARP and ND stats per-interface.

Type: feature

stats of the like from:
  https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-arp-yang-model-03#section-4

Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: Icb1bf4f6f7e6ccc2f44b0008d4774b61cae96184

1 files changed, 34 insertions, 0 deletions

diff --git a/test/test_neighbor.py b/test/test_neighbor.py
index e1b37a0a124..64be36d739a 100644
--- a/test/test_neighbor.py
+++ b/test/test_neighbor.py
@@ -160,6 +160,30 @@ class ARPTestCase(VppTestCase):
         self.assertEqual(ip.src, sip)
         self.assertEqual(ip.dst, dip)
 
+    def get_arp_rx_requests(self, itf):
+        """Get ARP RX request stats for and interface"""
+        return self.statistics["/net/arp/rx/requests"][:, itf.sw_if_index].sum()
+
+    def get_arp_tx_requests(self, itf):
+        """Get ARP TX request stats for and interface"""
+        return self.statistics["/net/arp/tx/requests"][:, itf.sw_if_index].sum()
+
+    def get_arp_rx_replies(self, itf):
+        """Get ARP RX replies stats for and interface"""
+        return self.statistics["/net/arp/rx/replies"][:, itf.sw_if_index].sum()
+
+    def get_arp_tx_replies(self, itf):
+        """Get ARP TX replies stats for and interface"""
+        return self.statistics["/net/arp/tx/replies"][:, itf.sw_if_index].sum()
+
+    def get_arp_rx_garp(self, itf):
+        """Get ARP RX grat stats for and interface"""
+        return self.statistics["/net/arp/rx/gratuitous"][:, itf.sw_if_index].sum()
+
+    def get_arp_tx_garp(self, itf):
+        """Get ARP RX grat stats for and interface"""
+        return self.statistics["/net/arp/tx/gratuitous"][:, itf.sw_if_index].sum()
+
     def test_arp(self):
         """ARP"""
 
@@ -208,6 +232,10 @@ class ARPTestCase(VppTestCase):
             rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[1].ip4
         )
 
+        self.logger.info(self.vapi.cli("sh ip neighbor-stats"))
+        self.logger.info(self.vapi.cli("sh ip neighbor-stats pg1"))
+        self.assert_equal(self.get_arp_tx_requests(self.pg1), 1)
+
         #
         # And a dynamic ARP entry for host 1
         #
@@ -328,6 +356,7 @@ class ARPTestCase(VppTestCase):
         self.verify_arp_req(
             rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1._remote_hosts[1].ip4
         )
+        self.assert_equal(self.get_arp_tx_requests(self.pg1), 2)
 
         self.assertFalse(dyn_arp.query_vpp_config())
         self.assertTrue(static_arp.query_vpp_config())
@@ -353,6 +382,9 @@ class ARPTestCase(VppTestCase):
             self.pg1.local_ip4,
             self.pg1._remote_hosts[3].ip4,
         )
+        self.logger.info(self.vapi.cli("sh ip neighbor-stats pg1"))
+        self.assert_equal(self.get_arp_rx_requests(self.pg1), 1)
+        self.assert_equal(self.get_arp_tx_replies(self.pg1), 1)
 
         #
         # VPP should have learned the mapping for the remote host
@@ -1662,6 +1694,7 @@ class ARPTestCase(VppTestCase):
                 mac=self.pg1.remote_hosts[2].mac,
             )
         )
+        self.assert_equal(self.get_arp_rx_garp(self.pg1), 1)
 
         #
         # Send a GARP (reply) to swap the host 1's address to that of host 3
@@ -1686,6 +1719,7 @@ class ARPTestCase(VppTestCase):
                 mac=self.pg1.remote_hosts[3].mac,
             )
         )
+        self.assert_equal(self.get_arp_rx_garp(self.pg1), 2)
 
         #
         # GARPs (request nor replies) for host we don't know yet