bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/AddPathBasePathsTest.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.protocol.bgp.rib.impl;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.opendaylight.protocol.util.CheckUtil.checkReceivedMessages;
  12 import static org.opendaylight.protocol.util.CheckUtil.waitFutureSuccess;
  13
  14 import com.google.common.collect.ImmutableMap;
  15 import io.netty.channel.Channel;
  16 import io.netty.channel.ChannelFuture;
  17 import java.net.InetSocketAddress;
  18 import java.util.Map;
  19 import org.junit.After;
  20 import org.junit.Before;
  21 import org.junit.Test;
  22 import org.opendaylight.protocol.bgp.mode.api.PathSelectionMode;
  23 import org.opendaylight.protocol.bgp.mode.impl.base.BasePathSelectionModeFactory;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev200120.open.message.BgpParameters;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.PeerRole;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.RibId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev180329.rib.TablesKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.BgpId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.Ipv4AddressFamily;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev200120.UnicastSubsequentAddressFamily;
  31
  32 public class AddPathBasePathsTest extends AbstractAddPathTest {
  33     private RIBImpl ribImpl;
  34     private Channel serverChannel;
  35
  36     @Override
  37     @Before
  38     public void setUp() throws Exception {
  39         super.setUp();
  40         final TablesKey tk = new TablesKey(Ipv4AddressFamily.VALUE, UnicastSubsequentAddressFamily.VALUE);
  41         final Map<TablesKey, PathSelectionMode> pathTables = ImmutableMap.of(tk,
  42             BasePathSelectionModeFactory.createBestPathSelectionStrategy());
  43
  44         ribImpl = new RIBImpl(tableRegistry, new RibId("test-rib"), AS_NUMBER, new BgpId(RIB_ID), ribExtension,
  45                 serverDispatcher, codecsRegistry, getDomBroker(), policies, TABLES_TYPE, pathTables);
  46         ribImpl.instantiateServiceInstance();
  47         final ChannelFuture channelFuture = serverDispatcher.createServer(
  48             new InetSocketAddress(RIB_ID, PORT.toJava()));
  49         waitFutureSuccess(channelFuture);
  50         serverChannel = channelFuture.channel();
  51     }
  52
  53     @Override
  54     @After
  55     public void tearDown() throws Exception {
  56         waitFutureSuccess(serverChannel.close());
  57         super.tearDown();
  58     }
  59
  60     /*
  61      * Base-Paths
  62      *                                            ___________________
  63      *                                           | ODL BGP 127.0.0.1 |
  64      * [peer://127.0.0.2; p1, lp100] --(iBGP)--> |                   | --(RR-client, non add-path) -->
  65      * [peer://127.0.0.3; p1, lp200] --(iBGP)--> |                   |    [Peer://127.0.0.5; (p1, lp100), (p1, lp1200)]
  66      * [peer://127.0.0.4; p1, lp50] --(iBGP)-->  |                   | --(eBgp, non add-path) -->
  67      * [peer://127.0.0.2; p1, lp20] --(iBGP)-->  |___________________|    [Peer://127.0.0.6; (p1, path-id1, lp100),
  68      * p1 = 1.1.1.1/32                                                      (p1, path-id2, pl50), (p1, path-id3, pl200)]
  69      */
  70     @Test
  71     public void testUseCase1() throws Exception {
  72         final BgpParameters nonAddPathParams = createParameter(false);
  73
  74         configurePeer(tableRegistry, PEER1, ribImpl, nonAddPathParams, PeerRole.Ibgp, serverRegistry);
  75         final BGPSessionImpl session1 = createPeerSession(PEER1, nonAddPathParams, new SimpleSessionListener());
  76
  77         configurePeer(tableRegistry, PEER2, ribImpl, nonAddPathParams, PeerRole.Ibgp, serverRegistry);
  78         final BGPSessionImpl session2 = createPeerSession(PEER2, nonAddPathParams, new SimpleSessionListener());
  79
  80         configurePeer(tableRegistry, PEER3, ribImpl, nonAddPathParams, PeerRole.Ibgp, serverRegistry);
  81         final BGPSessionImpl session3 = createPeerSession(PEER3,nonAddPathParams, new SimpleSessionListener());
  82
  83         final SimpleSessionListener listener4 = new SimpleSessionListener();
  84         configurePeer(tableRegistry, PEER4, ribImpl, nonAddPathParams, PeerRole.RrClient,
  85                 serverRegistry);
  86         final BGPSessionImpl session4 = createPeerSession(PEER4, nonAddPathParams, listener4);
  87
  88         final SimpleSessionListener listener5 = new SimpleSessionListener();
  89         configurePeer(tableRegistry, PEER5, ribImpl, nonAddPathParams, PeerRole.Ebgp, serverRegistry);
  90         final BGPSessionImpl session5 = createPeerSession(PEER5, nonAddPathParams, listener5);
  91         checkPeersPresentOnDataStore(5);
  92
  93         //new best route so far
  94         sendRouteAndCheckIsOnLocRib(session1, PREFIX1, 100, 1);
  95         checkReceivedMessages(listener4, 2);
  96         checkReceivedMessages(listener5, 2);
  97         assertEquals(UPD_NA_100, listener4.getListMsg().get(1));
  98         assertEquals(UPD_NA_100_EBGP, listener5.getListMsg().get(1));
  99
 100         //the second best route
 101         sendRouteAndCheckIsOnLocRib(session2, PREFIX1, 100, 1);
 102         checkReceivedMessages(listener4, 2);
 103         checkReceivedMessages(listener5, 2);
 104
 105         //new best route
 106         sendRouteAndCheckIsOnLocRib(session3, PREFIX1, 200, 1);
 107         checkReceivedMessages(listener4, 3);
 108         checkReceivedMessages(listener5, 3);
 109         assertEquals(UPD_NA_200, listener4.getListMsg().get(2));
 110         assertEquals(UPD_NA_200_EBGP, listener5.getListMsg().get(2));
 111
 112         final SimpleSessionListener listener6 = new SimpleSessionListener();
 113         configurePeer(tableRegistry, PEER6, ribImpl, nonAddPathParams, PeerRole.RrClient,
 114                 serverRegistry);
 115         final BGPSessionImpl session6 = createPeerSession(PEER6, nonAddPathParams, listener6);
 116
 117         checkPeersPresentOnDataStore(6);
 118         checkReceivedMessages(listener6, 2);
 119         assertEquals(UPD_NA_200, listener6.getListMsg().get(1));
 120         session6.close();
 121         checkPeersPresentOnDataStore(5);
 122
 123         //best route updated to be the worse one
 124         sendRouteAndCheckIsOnLocRib(session3, PREFIX1, 20, 1);
 125         checkReceivedMessages(listener4, 4);
 126         checkReceivedMessages(listener5, 4);
 127         assertEquals(UPD_NA_100, listener4.getListMsg().get(3));
 128         assertEquals(UPD_NA_100_EBGP, listener5.getListMsg().get(3));
 129
 130         //Remove second best, no advertisement should be done
 131         sendWithdrawalRouteAndCheckIsOnLocRib(session2, PREFIX1, 50, 1);
 132         checkReceivedMessages(listener4, 4);
 133         checkReceivedMessages(listener5, 4);
 134
 135         //Remove best, 1 advertisement
 136         sendWithdrawalRouteAndCheckIsOnLocRib(session1, PREFIX1, 100, 1);
 137         checkReceivedMessages(listener4, 5);
 138         checkReceivedMessages(listener5, 5);
 139
 140         //Remove best, 1 withdrawal
 141         sendWithdrawalRouteAndCheckIsOnLocRib(session3, PREFIX1, 20, 0);
 142         checkReceivedMessages(listener4, 6);
 143         checkReceivedMessages(listener5, 6);
 144
 145         session1.close();
 146         session2.close();
 147         session3.close();
 148         session4.close();
 149         session5.close();
 150     }
 151 }