bgp/rib-impl/src/test/java/org/opendaylight/protocol/bgp/rib/impl/AddPathNPathsTest.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
   9 package org.opendaylight.protocol.bgp.rib.impl;
  10
  11 import static org.junit.Assert.assertEquals;
  12
  13 import com.google.common.collect.ImmutableList;
  14 import com.google.common.collect.ImmutableMap;
  15 import io.netty.channel.Channel;
  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.n.paths.AddPathBestNPathSelection;
  22 import org.opendaylight.protocol.bgp.parser.BgpTableTypeImpl;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.message.rev130919.open.message.BgpParameters;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.multiprotocol.rev130919.BgpTableType;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.PeerRole;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.RibId;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.rib.rev130925.rib.TablesKey;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.BgpId;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.Ipv4AddressFamily;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.bgp.types.rev130919.UnicastSubsequentAddressFamily;
  31
  32 public class AddPathNPathsTest extends AbstractAddPathTest {
  33
  34     /*
  35      * N-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)]
  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 TablesKey tk = new TablesKey(Ipv4AddressFamily.class, UnicastSubsequentAddressFamily.class);
  49         final Map<TablesKey, PathSelectionMode> pathTables = ImmutableMap.of(tk, new AddPathBestNPathSelection(2L));
  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         this.dispatcher.createServer(StrictBGPPeerRegistry.GLOBAL, new InetSocketAddress(RIB_ID, PORT)).sync();
  58         Thread.sleep(1000);
  59
  60         final BGPHandlerFactory hf = new BGPHandlerFactory(this.context.getMessageRegistry());
  61         final BgpParameters nonAddPathParams = createParameter(false);
  62         final BgpParameters addPathParams = createParameter(true);
  63
  64         final Channel session1 = createPeerSession(PEER1, PeerRole.Ibgp, nonAddPathParams, ribImpl, hf, new SimpleSessionListener());
  65         final Channel session2 = createPeerSession(PEER2, PeerRole.Ibgp, nonAddPathParams, ribImpl, hf, new SimpleSessionListener());
  66         final Channel session3 = createPeerSession(PEER3, PeerRole.Ibgp, nonAddPathParams, ribImpl, hf, new SimpleSessionListener());
  67         final SimpleSessionListener listener4 = new SimpleSessionListener();
  68         final Channel session4 = createPeerSession(PEER4, PeerRole.RrClient, nonAddPathParams, ribImpl, hf, listener4);
  69         final SimpleSessionListener listener5 = new SimpleSessionListener();
  70         final Channel session5 = createPeerSession(PEER5, PeerRole.RrClient, addPathParams, ribImpl, hf, listener5);
  71         Thread.sleep(1000);
  72         checkPeersPresentOnDataStore(5);
  73
  74         //new best route so far
  75         sendRouteAndCheckIsOnDS(session1, PREFIX1, 100, 1);
  76         assertEquals(1, listener4.getListMsg().size());
  77         assertEquals(1, listener5.getListMsg().size());
  78         assertEquals(UPD_100, listener5.getListMsg().get(0));
  79
  80         //the second best route
  81         sendRouteAndCheckIsOnDS(session2, PREFIX1, 50, 2);
  82         assertEquals(1, listener4.getListMsg().size());
  83         assertEquals(2, listener5.getListMsg().size());
  84         assertEquals(UPD_50, listener5.getListMsg().get(1));
  85
  86         //new best route
  87         sendRouteAndCheckIsOnDS(session3, PREFIX1, 200, 2);
  88         assertEquals(2, listener4.getListMsg().size());
  89         assertEquals(3, listener5.getListMsg().size());
  90         assertEquals(UPD_200, listener5.getListMsg().get(2));
  91
  92         //the worst prefix, no changes
  93         sendRouteAndCheckIsOnDS(session2, PREFIX1, 20, 2);
  94         assertEquals(2, listener4.getListMsg().size());
  95         assertEquals(3, listener5.getListMsg().size());
  96
  97         session1.close();
  98         session2.close();
  99         session3.close();
 100         session4.close();
 101         session5.close();
 102     }
 103 }