#!/usr/bin/env python
import socket
+from util import ip4n_range
import unittest
from framework import VppTestCase, VppTestRunner
from template_bd import BridgeDomain
Encapsulate the original payload frame by adding VXLAN header with its
UDP, IP and Ethernet fields
"""
- return (Ether(src=src_mac, dst=self.mcast_mac4) /
+ return (Ether(src=src_mac, dst=self.mcast_mac) /
IP(src=src_ip, dst=self.mcast_ip4) /
UDP(sport=self.dport, dport=self.dport, chksum=0) /
VXLAN(vni=vni, flags=self.flags) /
# Method for checking VXLAN encapsulation.
#
- def check_encapsulation(self, pkt, vni, local_only=False):
+ def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
# TODO: add error messages
# Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
# by VPP using ARP.
self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
if not local_only:
- self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
+ if not mcast_pkt:
+ self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
+ else:
+ self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
# Verify VXLAN tunnel source IP is VPP_IP and destination IP is MY_IP.
self.assertEqual(pkt[IP].src, self.pg0.local_ip4)
if not local_only:
- self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
+ if not mcast_pkt:
+ self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
+ else:
+ self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
# Verify UDP destination port is VXLAN 4789, source UDP port could be
# arbitrary.
self.assertEqual(pkt[UDP].dport, type(self).dport)
# Verify VNI
self.assertEqual(pkt[VXLAN].vni, vni)
- @staticmethod
- def ip4_range(ip4n, s=10, e=20):
- base = str(bytearray(ip4n)[:3])
- return ((base + ip) for ip in str(bytearray(range(s, e))))
-
@classmethod
- def create_vxlan_flood_test_bd(cls, vni):
+ def create_vxlan_flood_test_bd(cls, vni, n_ucast_tunnels):
# Create 10 ucast vxlan tunnels under bd
ip_range_start = 10
- ip_range_end = 20
+ ip_range_end = ip_range_start + n_ucast_tunnels
next_hop_address = cls.pg0.remote_ip4n
- for dest_addr in cls.ip4_range(next_hop_address, ip_range_start,
- ip_range_end):
- # add host route so dest_addr will not be resolved
- cls.vapi.ip_add_del_route(dest_addr, 32, next_hop_address)
+ for dest_ip4n in ip4n_range(next_hop_address, ip_range_start,
+ ip_range_end):
+ # add host route so dest_ip4n will not be resolved
+ cls.vapi.ip_add_del_route(dest_ip4n, 32, next_hop_address)
r = cls.vapi.vxlan_add_del_tunnel(
src_addr=cls.pg0.local_ip4n,
- dst_addr=dest_addr,
+ dst_addr=dest_ip4n,
vni=vni)
cls.vapi.sw_interface_set_l2_bridge(r.sw_if_index, bd_id=vni)
@classmethod
- def add_del_mcast_load(cls, is_add):
+ def add_del_shared_mcast_dst_load(cls, is_add):
+ """
+ add or del tunnels sharing the same mcast dst
+ to test vxlan ref_count mechanism
+ """
+ n_shared_dst_tunnels = 2000
+ vni_start = 10000
+ vni_end = vni_start + n_shared_dst_tunnels
+ for vni in range(vni_start, vni_end):
+ cls.vapi.vxlan_add_del_tunnel(
+ src_addr=cls.pg0.local_ip4n,
+ dst_addr=cls.mcast_ip4n,
+ mcast_sw_if_index=1,
+ vni=vni,
+ is_add=is_add)
+
+ @classmethod
+ def add_shared_mcast_dst_load(cls):
+ cls.add_del_shared_mcast_dst_load(is_add=1)
+
+ @classmethod
+ def del_shared_mcast_dst_load(cls):
+ cls.add_del_shared_mcast_dst_load(is_add=0)
+
+ @classmethod
+ def add_del_mcast_tunnels_load(cls, is_add):
+ """
+ add or del tunnels to test vxlan stability
+ """
+ n_distinct_dst_tunnels = 200
ip_range_start = 10
- ip_range_end = 210
- for dest_addr in cls.ip4_range(cls.mcast_ip4n, ip_range_start,
- ip_range_end):
- vni = bytearray(dest_addr)[3]
+ ip_range_end = ip_range_start + n_distinct_dst_tunnels
+ for dest_ip4n in ip4n_range(cls.mcast_ip4n, ip_range_start,
+ ip_range_end):
+ vni = bytearray(dest_ip4n)[3]
cls.vapi.vxlan_add_del_tunnel(
src_addr=cls.pg0.local_ip4n,
- dst_addr=dest_addr,
+ dst_addr=dest_ip4n,
mcast_sw_if_index=1,
vni=vni,
is_add=is_add)
@classmethod
- def add_mcast_load(cls):
- cls.add_del_mcast_load(is_add=1)
+ def add_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=1)
@classmethod
- def del_mcast_load(cls):
- cls.add_del_mcast_load(is_add=0)
+ def del_mcast_tunnels_load(cls):
+ cls.add_del_mcast_tunnels_load(is_add=0)
# Class method to start the VXLAN test case.
# Overrides setUpClass method in VppTestCase class.
cls.mcast_ip4 = '239.1.1.1'
cls.mcast_ip4n = socket.inet_pton(socket.AF_INET, cls.mcast_ip4)
iplong = atol(cls.mcast_ip4)
- cls.mcast_mac4 = "01:00:5e:%02x:%02x:%02x" % (
+ cls.mcast_mac = "01:00:5e:%02x:%02x:%02x" % (
(iplong >> 16) & 0x7F, (iplong >> 8) & 0xFF, iplong & 0xFF)
# Create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg1
bd_id=cls.single_tunnel_bd)
# Setup vni 2 to test multicast flooding
+ cls.n_ucast_tunnels = 10
cls.mcast_flood_bd = 2
- cls.create_vxlan_flood_test_bd(cls.mcast_flood_bd)
+ cls.create_vxlan_flood_test_bd(cls.mcast_flood_bd,
+ cls.n_ucast_tunnels)
r = cls.vapi.vxlan_add_del_tunnel(
src_addr=cls.pg0.local_ip4n,
dst_addr=cls.mcast_ip4n,
bd_id=cls.mcast_flood_bd)
# Add and delete mcast tunnels to check stability
- cls.add_mcast_load()
- cls.del_mcast_load()
+ cls.add_shared_mcast_dst_load()
+ cls.add_mcast_tunnels_load()
+ cls.del_shared_mcast_dst_load()
+ cls.del_mcast_tunnels_load()
# Setup vni 3 to test unicast flooding
cls.ucast_flood_bd = 3
- cls.create_vxlan_flood_test_bd(cls.ucast_flood_bd)
+ cls.create_vxlan_flood_test_bd(cls.ucast_flood_bd,
+ cls.n_ucast_tunnels)
cls.vapi.sw_interface_set_l2_bridge(cls.pg3.sw_if_index,
bd_id=cls.ucast_flood_bd)
except Exception:
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