]> git.puffer.fish Git - mirror/frr.git/commitdiff
topotests: new BFD test for multi hop features 6899/head
authorRafael Zalamena <rzalamena@opensourcerouting.org>
Wed, 12 Aug 2020 00:19:49 +0000 (21:19 -0300)
committerRafael Zalamena <rzalamena@opensourcerouting.org>
Wed, 12 Aug 2020 17:57:03 +0000 (14:57 -0300)
Add a new test to cover the new features for multi hop BFD peers:

- Test that we correctly receive TTL from protocol integration.
- Check minimum TTL usage and 'show' command.
- Check for passive mode.

Signed-off-by: Rafael Zalamena <rzalamena@opensourcerouting.org>
20 files changed:
tests/topotests/bfd-topo3/__init__.py [new file with mode: 0644]
tests/topotests/bfd-topo3/r1/bfd-peers.json [new file with mode: 0644]
tests/topotests/bfd-topo3/r1/bfdd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r1/bgpd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r1/zebra.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r2/bfd-peers.json [new file with mode: 0644]
tests/topotests/bfd-topo3/r2/bfdd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r2/bgpd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r2/zebra.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r3/bfd-peers.json [new file with mode: 0644]
tests/topotests/bfd-topo3/r3/bfdd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r3/bgpd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r3/zebra.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r4/bfd-peers.json [new file with mode: 0644]
tests/topotests/bfd-topo3/r4/bfdd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r4/bgpd.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/r4/zebra.conf [new file with mode: 0644]
tests/topotests/bfd-topo3/test_bfd_topo3.dot [new file with mode: 0644]
tests/topotests/bfd-topo3/test_bfd_topo3.jpg [new file with mode: 0644]
tests/topotests/bfd-topo3/test_bfd_topo3.py [new file with mode: 0644]

diff --git a/tests/topotests/bfd-topo3/__init__.py b/tests/topotests/bfd-topo3/__init__.py
new file mode 100644 (file)
index 0000000..e69de29
diff --git a/tests/topotests/bfd-topo3/r1/bfd-peers.json b/tests/topotests/bfd-topo3/r1/bfd-peers.json
new file mode 100644 (file)
index 0000000..56205d5
--- /dev/null
@@ -0,0 +1,68 @@
+[
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "local": "2001:db8:1::1",
+        "minimum-ttl": 253,
+        "multihop": true,
+        "passive-mode": true,
+        "peer": "2001:db8:3::1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r1-eth0",
+        "local": "2001:db8:1::1",
+        "multihop": false,
+        "passive-mode": true,
+        "peer": "2001:db8:1::2",
+        "receive-interval": 600,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 600,
+        "remote-transmit-interval": 600,
+        "status": "up",
+        "transmit-interval": 600,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "local": "192.168.1.1",
+        "minimum-ttl": 254,
+        "multihop": true,
+        "passive-mode": true,
+        "peer": "192.168.2.1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    }
+]
diff --git a/tests/topotests/bfd-topo3/r1/bfdd.conf b/tests/topotests/bfd-topo3/r1/bfdd.conf
new file mode 100644 (file)
index 0000000..8e40b76
--- /dev/null
@@ -0,0 +1,17 @@
+!
+debug bfd network
+debug bfd peer
+debug bfd zebra
+!
+bfd
+ profile fast-tx
+  receive-interval 600
+  transmit-interval 600
+  passive-mode
+ !
+ profile slow-tx
+  receive-interval 2000
+  transmit-interval 2000
+  passive-mode
+ !
+!
diff --git a/tests/topotests/bfd-topo3/r1/bgpd.conf b/tests/topotests/bfd-topo3/r1/bgpd.conf
new file mode 100644 (file)
index 0000000..a0281d5
--- /dev/null
@@ -0,0 +1,20 @@
+router bgp 100
+ no bgp ebgp-requires-policy
+ neighbor 2001:db8:1::2 remote-as internal
+ neighbor 2001:db8:1::2 bfd profile fast-tx
+ neighbor 192.168.2.1 remote-as external
+ neighbor 192.168.2.1 ebgp-multihop 2
+ neighbor 192.168.2.1 bfd profile slow-tx
+ neighbor 2001:db8:3::1 remote-as external
+ neighbor 2001:db8:3::1 ebgp-multihop 3
+ neighbor 2001:db8:3::1 bfd profile slow-tx
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+ address-family ipv6 unicast
+  redistribute connected
+  neighbor 2001:db8:1::2 activate
+  neighbor 192.168.2.1 activate
+  neighbor 2001:db8:3::1 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bfd-topo3/r1/zebra.conf b/tests/topotests/bfd-topo3/r1/zebra.conf
new file mode 100644 (file)
index 0000000..64aee48
--- /dev/null
@@ -0,0 +1,10 @@
+ip forwarding
+ipv6 forwarding
+!
+interface lo
+ ip address 10.254.254.1/32
+!
+interface r1-eth0
+ ip address 192.168.1.1/24
+ ipv6 address 2001:db8:1::1/64
+!
diff --git a/tests/topotests/bfd-topo3/r2/bfd-peers.json b/tests/topotests/bfd-topo3/r2/bfd-peers.json
new file mode 100644 (file)
index 0000000..cb8985b
--- /dev/null
@@ -0,0 +1,46 @@
+[
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r2-eth0",
+        "local": "2001:db8:1::2",
+        "multihop": false,
+        "passive-mode": false,
+        "peer": "2001:db8:1::1",
+        "receive-interval": 600,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 600,
+        "remote-transmit-interval": 600,
+        "status": "up",
+        "transmit-interval": 600,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r2-eth1",
+        "local": "2001:db8:2::2",
+        "multihop": false,
+        "passive-mode": false,
+        "peer": "2001:db8:2::1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    }
+]
diff --git a/tests/topotests/bfd-topo3/r2/bfdd.conf b/tests/topotests/bfd-topo3/r2/bfdd.conf
new file mode 100644 (file)
index 0000000..2a92e46
--- /dev/null
@@ -0,0 +1,15 @@
+!
+debug bfd network
+debug bfd peer
+debug bfd zebra
+!
+bfd
+ profile fast-tx
+  receive-interval 600
+  transmit-interval 600
+ !
+ profile slow-tx
+  receive-interval 2000
+  transmit-interval 2000
+ !
+!
diff --git a/tests/topotests/bfd-topo3/r2/bgpd.conf b/tests/topotests/bfd-topo3/r2/bgpd.conf
new file mode 100644 (file)
index 0000000..0e96033
--- /dev/null
@@ -0,0 +1,15 @@
+router bgp 100
+ no bgp ebgp-requires-policy
+ neighbor 2001:db8:1::1 remote-as internal
+ neighbor 2001:db8:1::1 bfd profile fast-tx
+ neighbor 2001:db8:2::1 remote-as external
+ neighbor 2001:db8:2::1 bfd profile slow-tx
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+ address-family ipv6 unicast
+  redistribute connected
+  neighbor 2001:db8:1::1 activate
+  neighbor 2001:db8:2::1 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bfd-topo3/r2/zebra.conf b/tests/topotests/bfd-topo3/r2/zebra.conf
new file mode 100644 (file)
index 0000000..c7e22d4
--- /dev/null
@@ -0,0 +1,14 @@
+ip forwarding
+ipv6 forwarding
+!
+interface lo
+ ip address 10.254.254.2/32
+!
+interface r2-eth0
+ ip address 192.168.1.2/24
+ ipv6 address 2001:db8:1::2/64
+!
+interface r2-eth1
+ ip address 192.168.2.2/24
+ ipv6 address 2001:db8:2::2/64
+!
diff --git a/tests/topotests/bfd-topo3/r3/bfd-peers.json b/tests/topotests/bfd-topo3/r3/bfd-peers.json
new file mode 100644 (file)
index 0000000..8be35fd
--- /dev/null
@@ -0,0 +1,68 @@
+[
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r3-eth1",
+        "local": "2001:db8:3::2",
+        "multihop": false,
+        "passive-mode": false,
+        "peer": "2001:db8:3::1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r3-eth0",
+        "local": "2001:db8:2::1",
+        "multihop": false,
+        "passive-mode": false,
+        "peer": "2001:db8:2::2",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "local": "192.168.2.1",
+        "minimum-ttl": 254,
+        "multihop": true,
+        "passive-mode": false,
+        "peer": "192.168.1.1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    }
+]
diff --git a/tests/topotests/bfd-topo3/r3/bfdd.conf b/tests/topotests/bfd-topo3/r3/bfdd.conf
new file mode 100644 (file)
index 0000000..f7972c6
--- /dev/null
@@ -0,0 +1,11 @@
+!
+debug bfd network
+debug bfd peer
+debug bfd zebra
+!
+bfd
+ profile slow-tx
+  receive-interval 2000
+  transmit-interval 2000
+ !
+!
diff --git a/tests/topotests/bfd-topo3/r3/bgpd.conf b/tests/topotests/bfd-topo3/r3/bgpd.conf
new file mode 100644 (file)
index 0000000..e14d201
--- /dev/null
@@ -0,0 +1,19 @@
+router bgp 300
+ no bgp ebgp-requires-policy
+ neighbor 192.168.1.1 remote-as external
+ neighbor 192.168.1.1 ebgp-multihop 2
+ neighbor 192.168.1.1 bfd profile slow-tx
+ neighbor 2001:db8:2::2 remote-as external
+ neighbor 2001:db8:2::2 bfd profile slow-tx
+ neighbor 2001:db8:3::1 remote-as external
+ neighbor 2001:db8:3::1 bfd profile slow-tx
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+ address-family ipv6 unicast
+  redistribute connected
+  neighbor 192.168.1.1 activate
+  neighbor 2001:db8:2::2 activate
+  neighbor 2001:db8:3::1 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bfd-topo3/r3/zebra.conf b/tests/topotests/bfd-topo3/r3/zebra.conf
new file mode 100644 (file)
index 0000000..14248fb
--- /dev/null
@@ -0,0 +1,14 @@
+ip forwarding
+ipv6 forwarding
+!
+interface lo
+ ip address 10.254.254.3/32
+!
+interface r3-eth0
+ ip address 192.168.2.1/24
+ ipv6 address 2001:db8:2::1/64
+!
+interface r3-eth1
+ ip address 192.168.3.2/24
+ ipv6 address 2001:db8:3::2/64
+!
diff --git a/tests/topotests/bfd-topo3/r4/bfd-peers.json b/tests/topotests/bfd-topo3/r4/bfd-peers.json
new file mode 100644 (file)
index 0000000..e2e6722
--- /dev/null
@@ -0,0 +1,46 @@
+[
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "local": "2001:db8:3::1",
+        "minimum-ttl": 253,
+        "multihop": true,
+        "passive-mode": false,
+        "peer": "2001:db8:1::1",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    },
+    {
+        "detect-multiplier": 3,
+        "diagnostic": "ok",
+        "echo-interval": 0,
+        "id": "*",
+        "interface": "r4-eth0",
+        "local": "2001:db8:3::1",
+        "multihop": false,
+        "passive-mode": false,
+        "peer": "2001:db8:3::2",
+        "receive-interval": 2000,
+        "remote-detect-multiplier": 3,
+        "remote-diagnostic": "ok",
+        "remote-echo-interval": 50,
+        "remote-id": "*",
+        "remote-receive-interval": 2000,
+        "remote-transmit-interval": 2000,
+        "status": "up",
+        "transmit-interval": 2000,
+        "uptime": "*",
+        "vrf": "default"
+    }
+]
diff --git a/tests/topotests/bfd-topo3/r4/bfdd.conf b/tests/topotests/bfd-topo3/r4/bfdd.conf
new file mode 100644 (file)
index 0000000..f44abc0
--- /dev/null
@@ -0,0 +1,16 @@
+!
+debug bfd network
+debug bfd peer
+debug bfd zebra
+!
+bfd
+ profile slow-tx
+  receive-interval 2000
+  transmit-interval 2000
+ !
+ profile slow-tx-mh
+  receive-interval 2000
+  transmit-interval 2000
+  minimum-ttl 250
+ !
+!
diff --git a/tests/topotests/bfd-topo3/r4/bgpd.conf b/tests/topotests/bfd-topo3/r4/bgpd.conf
new file mode 100644 (file)
index 0000000..3e81008
--- /dev/null
@@ -0,0 +1,16 @@
+router bgp 400
+ no bgp ebgp-requires-policy
+ neighbor 2001:db8:3::2 remote-as external
+ neighbor 2001:db8:3::2 bfd profile slow-tx
+ neighbor 2001:db8:1::1 remote-as external
+ neighbor 2001:db8:1::1 ebgp-multihop 3
+ neighbor 2001:db8:1::1 bfd profile slow-tx-mh
+ address-family ipv4 unicast
+  redistribute connected
+ exit-address-family
+ address-family ipv6 unicast
+  redistribute connected
+  neighbor 2001:db8:1::1 activate
+  neighbor 2001:db8:3::2 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bfd-topo3/r4/zebra.conf b/tests/topotests/bfd-topo3/r4/zebra.conf
new file mode 100644 (file)
index 0000000..bf0cfcf
--- /dev/null
@@ -0,0 +1,10 @@
+ip forwarding
+ipv6 forwarding
+!
+interface lo
+ ip address 10.254.254.4/32
+!
+interface r4-eth0
+ ip address 192.168.3.1/24
+ ipv6 address 2001:db8:3::1/64
+!
diff --git a/tests/topotests/bfd-topo3/test_bfd_topo3.dot b/tests/topotests/bfd-topo3/test_bfd_topo3.dot
new file mode 100644 (file)
index 0000000..502cea1
--- /dev/null
@@ -0,0 +1,73 @@
+## Color coding:
+#########################
+##  Main FRR: #f08080  red
+##  Switches: #d0e0d0  gray
+##  RIP:      #19e3d9  Cyan
+##  RIPng:    #fcb314  dark yellow
+##  OSPFv2:   #32b835  Green
+##  OSPFv3:   #19e3d9  Cyan
+##  ISIS IPv4 #fcb314  dark yellow
+##  ISIS IPv6 #9a81ec  purple
+##  BGP IPv4  #eee3d3  beige
+##  BGP IPv6  #fdff00  yellow
+##### Colors (see http://www.color-hex.com/)
+
+graph template {
+  label="bfd-topo3";
+
+  # Routers
+  r1 [
+    shape=doubleoctagon,
+    label="r1",
+    fillcolor="#f08080",
+    style=filled,
+  ];
+  r2 [
+    shape=doubleoctagon
+    label="r2",
+    fillcolor="#f08080",
+    style=filled,
+  ];
+  r3 [
+    shape=doubleoctagon
+    label="r3",
+    fillcolor="#f08080",
+    style=filled,
+  ];
+  r4 [
+    shape=doubleoctagon
+    label="r4",
+    fillcolor="#f08080",
+    style=filled,
+  ];
+
+  # Switches
+  sw1 [
+    shape=oval,
+    label="sw1\n192.168.1.0/24\n2001:db8:1::/64",
+    fillcolor="#d0e0d0",
+    style=filled,
+  ];
+  sw2 [
+    shape=oval,
+    label="sw2\n192.168.2.0/24\n2001:db8:2::/64",
+    fillcolor="#d0e0d0",
+    style=filled,
+  ];
+  sw3 [
+    shape=oval,
+    label="sw3\n192.168.3.0/24\n2001:db8:3::/64",
+    fillcolor="#d0e0d0",
+    style=filled,
+  ];
+
+  # Connections
+  r1 -- sw1 [label="eth0\n.1"];
+  r2 -- sw1 [label="eth0\n.2"];
+
+  r3 -- sw2 [label="eth0\n.1"];
+  r2 -- sw2 [label="eth1\n.2"];
+
+  r4 -- sw3 [label="eth0\n.1"];
+  r3 -- sw3 [label="eth2\n.2"];
+}
diff --git a/tests/topotests/bfd-topo3/test_bfd_topo3.jpg b/tests/topotests/bfd-topo3/test_bfd_topo3.jpg
new file mode 100644 (file)
index 0000000..6b53256
Binary files /dev/null and b/tests/topotests/bfd-topo3/test_bfd_topo3.jpg differ
diff --git a/tests/topotests/bfd-topo3/test_bfd_topo3.py b/tests/topotests/bfd-topo3/test_bfd_topo3.py
new file mode 100644 (file)
index 0000000..bcee338
--- /dev/null
@@ -0,0 +1,191 @@
+#!/usr/bin/env python
+
+#
+# test_bfd_topo3.py
+# Part of NetDEF Topology Tests
+#
+# Copyright (c) 2020 by
+# Network Device Education Foundation, Inc. ("NetDEF")
+#
+# 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.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF 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.
+#
+
+"""
+test_bfd_topo3.py: Test the FRR BFD daemon multi hop.
+"""
+
+import os
+import sys
+import json
+from functools import partial
+import pytest
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+# Required to instantiate the topology builder class.
+from mininet.topo import Topo
+
+
+class BFDTopo(Topo):
+    "Test topology builder"
+
+    def build(self, *_args, **_opts):
+        "Build function"
+        tgen = get_topogen(self)
+
+        # Create 4 routers
+        for routern in range(1, 5):
+            tgen.add_router("r{}".format(routern))
+
+        switch = tgen.add_switch("s1")
+        switch.add_link(tgen.gears["r1"])
+        switch.add_link(tgen.gears["r2"])
+
+        switch = tgen.add_switch("s2")
+        switch.add_link(tgen.gears["r2"])
+        switch.add_link(tgen.gears["r3"])
+
+        switch = tgen.add_switch("s3")
+        switch.add_link(tgen.gears["r3"])
+        switch.add_link(tgen.gears["r4"])
+
+
+def setup_module(mod):
+    "Sets up the pytest environment"
+    tgen = Topogen(BFDTopo, mod.__name__)
+    tgen.start_topology()
+
+    router_list = tgen.routers()
+    for rname, router in router_list.iteritems():
+        daemon_file = "{}/{}/bfdd.conf".format(CWD, rname)
+        if os.path.isfile(daemon_file):
+            router.load_config(TopoRouter.RD_BFD, daemon_file)
+
+        daemon_file = "{}/{}/zebra.conf".format(CWD, rname)
+        if os.path.isfile(daemon_file):
+            router.load_config(TopoRouter.RD_ZEBRA, daemon_file)
+
+        daemon_file = "{}/{}/bgpd.conf".format(CWD, rname)
+        if os.path.isfile(daemon_file):
+            router.load_config(TopoRouter.RD_BGP, daemon_file)
+
+    # Initialize all routers.
+    tgen.start_router()
+
+
+def test_wait_bgp_convergence():
+    "Wait for BGP to converge"
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    logger.info("waiting for protocols to converge")
+
+    def expect_loopback_route(router, iptype, route, proto):
+        "Wait until route is present on RIB for protocol."
+        logger.info('waiting route {} in {}'.format(route, router))
+        test_func = partial(
+            topotest.router_json_cmp,
+            tgen.gears[router],
+            'show {} route json'.format(iptype),
+            { route: [{ 'protocol': proto }] }
+        )
+        _, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
+        assertmsg = '"{}" OSPF convergence failure'.format(router)
+        assert result is None, assertmsg
+
+    # Wait for R1 <-> R2 convergence.
+    expect_loopback_route('r1', 'ip', '10.254.254.2/32', 'bgp')
+    # Wait for R1 <-> R3 convergence.
+    expect_loopback_route('r1', 'ip', '10.254.254.3/32', 'bgp')
+    # Wait for R1 <-> R4 convergence.
+    expect_loopback_route('r1', 'ip', '10.254.254.4/32', 'bgp')
+
+    # Wait for R2 <-> R1 convergence.
+    expect_loopback_route('r2', 'ip', '10.254.254.1/32', 'bgp')
+    # Wait for R2 <-> R3 convergence.
+    expect_loopback_route('r2', 'ip', '10.254.254.3/32', 'bgp')
+    # Wait for R2 <-> R4 convergence.
+    expect_loopback_route('r2', 'ip', '10.254.254.4/32', 'bgp')
+
+    # Wait for R3 <-> R1 convergence.
+    expect_loopback_route('r3', 'ip', '10.254.254.1/32', 'bgp')
+    # Wait for R3 <-> R2 convergence.
+    expect_loopback_route('r3', 'ip', '10.254.254.2/32', 'bgp')
+    # Wait for R3 <-> R4 convergence.
+    expect_loopback_route('r3', 'ip', '10.254.254.4/32', 'bgp')
+
+    # Wait for R4 <-> R1 convergence.
+    expect_loopback_route('r4', 'ip', '10.254.254.1/32', 'bgp')
+    # Wait for R4 <-> R2 convergence.
+    expect_loopback_route('r4', 'ip', '10.254.254.2/32', 'bgp')
+    # Wait for R4 <-> R3 convergence.
+    expect_loopback_route('r4', 'ip', '10.254.254.3/32', 'bgp')
+
+
+def test_wait_bfd_convergence():
+    "Wait for BFD to converge"
+    tgen = get_topogen()
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    logger.info("test BFD configurations")
+
+    def expect_bfd_configuration(router):
+        "Load JSON file and compare with 'show bfd peer json'"
+        logger.info('waiting BFD configuration on router {}'.format(router))
+        bfd_config = json.loads(open('{}/{}/bfd-peers.json'.format(CWD, router)).read())
+        test_func = partial(
+            topotest.router_json_cmp,
+            tgen.gears[router],
+            'show bfd peers json',
+            bfd_config
+        )
+        _, result = topotest.run_and_expect(test_func, None, count=130, wait=1)
+        assertmsg = '"{}" BFD configuration failure'.format(router)
+        assert result is None, assertmsg
+
+    expect_bfd_configuration('r1')
+    expect_bfd_configuration('r2')
+    expect_bfd_configuration('r3')
+    expect_bfd_configuration('r4')
+
+
+def teardown_module(_mod):
+    "Teardown the pytest environment"
+    tgen = get_topogen()
+    tgen.stop_topology()
+
+
+def test_memory_leak():
+    "Run the memory leak test and report results."
+    tgen = get_topogen()
+    if not tgen.is_memleak_enabled():
+        pytest.skip("Memory leak test/report is disabled")
+
+    tgen.report_memory_leaks()
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))