bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/AddPathAllPathsTest.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.bgp.rib.impl.CheckUtil.checkReceivedMessages;
  12 import static org.opendaylight.protocol.bgp.rib.impl.CheckUtil.waitFutureSuccess;
  13
  14 import com.google.common.collect.ImmutableList;
  15 import com.google.common.collect.ImmutableMap;
  16 import java.net.InetSocketAddress;
  17 import java.util.List;
  18 import java.util.Map;
  19 import org.junit.Test;
  20 import org.opendaylight.protocol.bgp.mode.api.PathSelectionMode;
  21 import org.opendaylight.protocol.bgp.mode.impl.add.all.paths.AllPathSelection;
  22 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.Update;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.RibId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  32
  33 public class AddPathAllPathsTest extends AbstractAddPathTest {
  34     /*
  35      * All-Paths
  36      *                                            ___________________
  37      *                                           | ODL BGP 127.0.0.1 |
  38      * [peer://127.0.0.2; p1, lp100] --(iBGP)--> |                   | --(RR-client, non add-path) --> [Peer://127.0.0.5; (p1, lp100), (p1, lp1200)]
  39      * [peer://127.0.0.3; p1, lp200] --(iBGP)--> |                   |
  40      * [peer://127.0.0.4; p1, lp50] --(iBGP)-->  |                   | --(RR-client, add-path) --> [Peer://127.0.0.6; (p1, path-id1, lp100), (p1, path-id2, pl50), (p1, path-id3, pl200), (p1, path-id4, pl20)]
  41      * [peer://127.0.0.2; p1, lp20] --(iBGP)-->  |___________________|
  42      * p1 = 1.1.1.1/32
  43      */
  44     @Test
  45     public void testUseCase1() throws Exception {
  46
  47         final List<BgpTableType> tables = ImmutableList.of(new BgpTableTypeImpl(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class));
  48         final Map<TablesKey, PathSelectionMode> pathTables = ImmutableMap.of(TABLES_KEY, new AllPathSelection());
  49
  50
  51         final RIBImpl ribImpl = new RIBImpl(this.clusterSingletonServiceProvider, new RibId("test-rib"), AS_NUMBER, new BgpId(RIB_ID), null, this.ribExtension,
  52                 this.dispatcher, this.mappingService.getCodecFactory(), getDomBroker(), tables, pathTables, this.ribExtension.getClassLoadingStrategy(), null);
  53
  54         ribImpl.instantiateServiceInstance();
  55         ribImpl.onGlobalContextUpdated(this.schemaContext);
  56
  57         waitFutureSuccess(this.dispatcher.createServer(StrictBGPPeerRegistry.GLOBAL, new InetSocketAddress(RIB_ID, PORT)));
  58         final BgpParameters nonAddPathParams = createParameter(false);
  59         final BgpParameters addPathParams = createParameter(true);
  60
  61         final BGPSessionImpl session1 = createPeerSession(PEER1, PeerRole.Ibgp, nonAddPathParams, ribImpl, new SimpleSessionListener());
  62         final BGPSessionImpl session2 = createPeerSession(PEER2, PeerRole.Ibgp, nonAddPathParams, ribImpl, new SimpleSessionListener());
  63         final BGPSessionImpl session3 = createPeerSession(PEER3, PeerRole.Ibgp, nonAddPathParams, ribImpl, new SimpleSessionListener());
  64         final SimpleSessionListener listener4 = new SimpleSessionListener();
  65         final BGPSessionImpl session4 = createPeerSession(PEER4, PeerRole.RrClient, nonAddPathParams, ribImpl, listener4);
  66         final SimpleSessionListener listener5 = new SimpleSessionListener();
  67         final BGPSessionImpl session5 = createPeerSession(PEER5, PeerRole.RrClient, addPathParams, ribImpl, listener5);
  68         checkPeersPresentOnDataStore(5);
  69
  70         //the best route
  71         sendRouteAndCheckIsOnLocRib(session1, PREFIX1, 100, 1);
  72         checkReceivedMessages(listener4, 1);
  73         checkReceivedMessages(listener5, 1);
  74         assertEquals(UPD_100, listener5.getListMsg().get(0));
  75
  76         final SimpleSessionListener listener6 = new SimpleSessionListener();
  77         final BGPSessionImpl session6 = createPeerSession(PEER6, PeerRole.RrClient, nonAddPathParams, ribImpl, listener6);
  78         checkPeersPresentOnDataStore(6);
  79         checkReceivedMessages(listener6, 1);
  80         assertEquals(UPD_NA_100, listener6.getListMsg().get(0));
  81         session6.close();
  82         checkPeersPresentOnDataStore(5);
  83
  84         //the second best route
  85         sendRouteAndCheckIsOnLocRib(session2, PREFIX1, 50, 2);
  86         checkReceivedMessages(listener4, 1);
  87         checkReceivedMessages(listener5, 2);
  88         assertEquals(UPD_50, listener5.getListMsg().get(1));
  89
  90         //new best route
  91         sendRouteAndCheckIsOnLocRib(session3, PREFIX1, 200, 3);
  92         checkReceivedMessages(listener4, 2);
  93         checkReceivedMessages(listener5, 3);
  94         assertEquals(UPD_200, listener5.getListMsg().get(2));
  95
  96         //the worst route
  97         sendRouteAndCheckIsOnLocRib(session1, PREFIX1, 20, 3);
  98         checkReceivedMessages(listener4, 2);
  99         checkReceivedMessages(listener5, 4);
 100         assertEquals(UPD_200.getAttributes().getLocalPref(), ((Update) listener4.getListMsg().get(1)).getAttributes().getLocalPref());
 101         assertEquals(UPD_20, listener5.getListMsg().get(3));
 102
 103         //withdraw second best route, 1 advertisement(1 withdrawal) for add-path supported, none for non add path
 104         sendWithdrawalRouteAndCheckIsOnLocRib(session1, PREFIX1, 100, 2);
 105         checkReceivedMessages(listener4, 2);
 106         checkReceivedMessages(listener5, 5);
 107
 108         //we advertise again to try new test
 109         sendRouteAndCheckIsOnLocRib(session1, PREFIX1, 100, 3);
 110         checkReceivedMessages(listener4, 2);
 111         checkReceivedMessages(listener5, 6);
 112         assertEquals(UPD_200, listener5.getListMsg().get(2));
 113
 114         //withdraw second best route, 1 advertisement(1 withdrawal) for add-path supported, 1 for non add path (withdrawal)
 115         sendWithdrawalRouteAndCheckIsOnLocRib(session3, PREFIX1, 200, 2);
 116         checkReceivedMessages(listener4, 3);
 117         checkReceivedMessages(listener5, 7);
 118
 119         session1.close();
 120         session2.close();
 121         session3.close();
 122         session4.close();
 123         session5.close();
 124     }
 125 }