HP MSR1002-4 User manual

HPE FlexNetwork MSR Router Series
Comware 7 IP Multicast Configuration Guide
Part number: 5200-2392
Software version: MSR-CMW710-R0411
Document version: 6W101-20161114

© Copyright 2016 Hewlett Packard Enterprise Development LP
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Contents
Multicast overview············································································1
Introduction to multicast ················································································································1
Information transmission techniques ·························································································1
Multicast features··················································································································3
Common notations in multicast ································································································4
Multicast benefits and applications····························································································4
Multicast models··························································································································4
Multicast architecture····················································································································5
Multicast addresses···············································································································5
Multicast protocols·················································································································8
Multicast packet forwarding mechanism ························································································· 10
Multicast support for VPNs··········································································································· 10
Introduction to VPN instances································································································ 10
Multicast application in VPNs································································································· 11
Configuring IGMP snooping······························································12
Overview·································································································································· 12
IGMP snooping ports ··········································································································· 12
How IGMP snooping works ··································································································· 14
Protocols and standards······································································································· 15
Compatibility information ············································································································· 15
Feature and hardware compatibility ························································································ 15
Command and hardware compatibility····················································································· 16
IGMP snooping configuration task list ···························································································· 16
Configuring basic IGMP snooping features ····················································································· 17
Enabling IGMP snooping ······································································································ 17
Specifying an IGMP snooping version····················································································· 17
Setting the maximum number of IGMP snooping forwarding entries··············································18
Setting the IGMP last member query interval············································································ 19
Configuring IGMP snooping port features ······················································································· 19
Setting aging timers for dynamic ports····················································································· 19
Configuring static ports········································································································· 20
Configuring a port as a simulated member host········································································· 21
Enabling fast-leave processing ······························································································ 21
Disabling a port from becoming a dynamic router port ································································ 22
Configuring the IGMP snooping querier·························································································· 22
Configuration prerequisites···································································································· 23
Enabling the IGMP snooping querier······················································································· 23
Configuring parameters for IGMP general queries and responses ················································ 23
Configuring parameters for IGMP messages··················································································· 24
Configuration prerequisites···································································································· 24
Configuring source IP addresses for IGMP messages································································24
Setting the 802.1p priority for IGMP messages ········································································· 25
Configuring IGMP snooping policies ······························································································ 26
Configuring a multicast group policy························································································ 26
Enabling multicast source port filtering ···················································································· 27
Enabling dropping unknown multicast data··············································································· 27
Enabling IGMP report suppression ························································································· 28
Setting the maximum number of multicast groups on a port·························································28
Enabling the multicast group replacement feature······································································ 29
Displaying and maintaining IGMP snooping ···················································································· 29
IGMP snooping configuration examples ························································································· 32
Group policy and simulated joining configuration example··························································· 32
Static port configuration example···························································································· 34
IGMP snooping querier configuration example·········································································· 37
Troubleshooting IGMP snooping··································································································· 39
Layer 2 multicast forwarding cannot function ············································································ 39

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Multicast group policy does not work······················································································· 40
Configuring multicast routing and forwarding········································41
Overview·································································································································· 41
RPF check mechanism········································································································· 41
Static multicast routes·········································································································· 43
Multicast forwarding across unicast subnets············································································· 44
Command and hardware compatibility···························································································· 45
Configuration task list·················································································································· 45
Enabling IP multicast routing········································································································ 46
Configuring multicast routing and forwarding··················································································· 46
Configuring static multicast routes ·························································································· 46
Specifying the longest prefix match principle·············································································47
Configuring multicast load splitting·························································································· 47
Configuring a multicast forwarding boundary ············································································47
Configuring static multicast MAC address entries ······································································ 48
Enabling multicast forwarding between sub-VLANs of a super VLAN··················································· 49
Displaying and maintaining multicast routing and forwarding ······························································ 49
Configuration examples··············································································································· 51
Changing an RPF route········································································································ 51
Creating an RPF route ········································································································· 53
Multicast forwarding over a GRE tunnel··················································································· 55
Multicast forwarding over ADVPN tunnels················································································ 58
Troubleshooting multicast routing and forwarding············································································· 64
Static multicast route failure··································································································· 64
Configuring IGMP···········································································65
Overview·································································································································· 65
IGMPv1 overview················································································································ 65
IGMPv2 enhancements········································································································ 66
IGMPv3 enhancements········································································································ 67
IGMP SSM mapping ············································································································ 68
IGMP proxying···················································································································· 69
IGMP support for VPNs········································································································ 70
Protocols and standards······································································································· 70
IGMP configuration task list·········································································································· 71
Configuring basic IGMP features··································································································· 71
Enabling IGMP ··················································································································· 71
Specifying an IGMP version ·································································································· 72
Configuring a static group member ························································································· 72
Configuring a multicast group policy························································································ 72
Adjusting IGMP performance········································································································ 73
Configuring IGMP query and response parameters···································································· 73
Enabling fast-leave processing ······························································································ 75
Configuring IGMP SSM mappings································································································· 76
Configuration prerequisites···································································································· 76
Configuration procedure ······································································································· 76
Configuring IGMP proxying·········································································································· 76
Configuration prerequisites···································································································· 76
Enabling IGMP proxying······································································································· 76
Enabling multicast forwarding on a non-querier interface ···························································· 77
Configuring multicast load splitting on an IGMP proxy ································································77
Enabling IGMP NSR··················································································································· 78
Displaying and maintaining IGMP·································································································· 78
IGMP configuration examples······································································································· 79
Basic IGMP features configuration examples············································································79
IGMP SSM mapping configuration example·············································································· 81
IGMP proxying configuration example····················································································· 84
Troubleshooting IGMP ················································································································ 86
No membership information on the receiver-side router ······························································ 86
Inconsistent membership information on the routers on the same subnet······································· 86

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Configuring PIM·············································································87
Overview·································································································································· 87
PIM-DM overview················································································································ 87
PIM-SM overview················································································································ 89
BIDIR-PIM overview ············································································································ 95
Administrative scoping overview····························································································· 98
PIM-SSM overview············································································································ 100
Relationship among PIM protocols························································································ 101
PIM support for VPNs ········································································································ 102
Protocols and standards····································································································· 102
Configuring PIM-DM················································································································· 102
PIM-DM configuration task list ····························································································· 103
Configuration prerequisites·································································································· 103
Enabling PIM-DM·············································································································· 103
Enabling the state refresh feature························································································· 103
Configuring state refresh parameters ···················································································· 104
Configuring PIM-DM graft retry timer····················································································· 104
Configuring PIM-SM ················································································································· 105
PIM-SM configuration task list······························································································ 105
Configuration prerequisites·································································································· 105
Enabling PIM-SM ·············································································································· 105
Configuring an RP············································································································· 106
Configuring a BSR············································································································· 108
Configuring multicast source registration················································································ 110
Configuring the switchover to SPT························································································ 111
Configuring BIDIR-PIM·············································································································· 111
BIDIR-PIM configuration task list·························································································· 112
Configuration prerequisites·································································································· 112
Enabling BIDIR-PIM··········································································································· 112
Configuring an RP············································································································· 113
Configuring a BSR············································································································· 115
Configuring PIM-SSM ··············································································································· 117
PIM-SSM configuration task list···························································································· 117
Configuration prerequisites·································································································· 117
Enabling PIM-SM ·············································································································· 117
Configuring the SSM group range························································································· 118
Configuring common PIM features ······························································································ 118
Configuration task list········································································································· 118
Configuration prerequisites·································································································· 118
Configuring a multicast source policy ···················································································· 119
Configuring a PIM hello policy······························································································ 119
Configuring PIM hello message options················································································· 119
Configuring common PIM timers ·························································································· 121
Setting the maximum size of each join or prune message ························································· 122
Enabling BFD for PIM ········································································································ 122
Enabling PIM passive mode ································································································ 123
Enabling PIM NSR············································································································· 123
Enabling SNMP notifications for PIM····················································································· 124
Enabling NBMA mode for ADVPN tunnel interfaces································································· 124
Displaying and maintaining PIM·································································································· 125
PIM configuration examples······································································································· 125
PIM-DM configuration example···························································································· 125
PIM-SM non-scoped zone configuration example···································································· 128
PIM-SM admin-scoped zone configuration example································································· 131
BIDIR-PIM configuration example························································································· 136
PIM-SSM configuration example ·························································································· 140
Troubleshooting PIM················································································································· 143
A multicast distribution tree cannot be correctly built ································································ 143
Multicast data is abnormally terminated on an intermediate router ·············································· 144
An RP cannot join an SPT in PIM-SM ··················································································· 144
An RPT cannot be built or multicast source registration fails in PIM-SM······································· 144

iv
Configuring MSDP········································································ 146
Overview································································································································ 146
How MSDP works ············································································································· 146
MSDP support for VPNs····································································································· 151
Protocols and standards····································································································· 151
MSDP configuration task list······································································································· 152
Configuring basic MSDP features································································································ 152
Configuration prerequisites·································································································· 152
Enabling MSDP ················································································································ 152
Specifying an MSDP peer··································································································· 153
Configuring a static RPF peer······························································································ 153
Configuring an MSDP peering connection····················································································· 153
Configuration prerequisites·································································································· 153
Configuring a description for an MSDP peer··········································································· 154
Configuring an MSDP mesh group························································································ 154
Controlling MSDP peering connections·················································································· 154
Configuring SA message-related parameters ················································································ 155
Configuration prerequisites·································································································· 155
Enabling multicast data encapsulation in SA messages···························································· 155
Configuring the originating RP of SA messages ······································································ 156
Configuring SA request messages························································································ 156
Configuring SA message policies ························································································· 157
Configuring the SA cache mechanism··················································································· 158
Displaying and maintaining MSDP······························································································· 158
MSDP configuration examples···································································································· 159
PIM-SM inter-domain multicast configuration·········································································· 159
Inter-AS multicast configuration by leveraging static RPF peers ················································· 163
Anycast RP configuration···································································································· 168
SA message filtering configuration························································································ 171
Troubleshooting MSDP ············································································································· 175
MSDP peers stay in disabled state ······················································································· 175
No SA entries exist in the router's SA message cache······························································ 175
No exchange of locally registered (S, G) entries between RPs··················································· 175
Configuring multicast VPN ····························································· 177
Overview································································································································ 177
MD VPN overview ············································································································· 178
Protocols and standards····································································································· 181
How MD VPN works················································································································· 182
Default-MDT establishment································································································· 182
Default-MDT-based delivery································································································ 185
MDT switchover················································································································ 188
Inter-AS MD VPN·············································································································· 189
M6VPE···························································································································· 192
Multicast VPN configuration task list ···························································································· 193
Configuring MD VPN ················································································································ 194
Configuration prerequisites·································································································· 194
Enabling IP multicast routing for a VPN instance····································································· 194
Creating an MD for a VPN instance ······················································································ 195
Create an MD address family ······························································································ 195
Specifying the default-group································································································ 195
Specifying the MD source interface······················································································· 196
Configuring MDT switchover parameters ··············································································· 196
Configuring the RPF vector feature······················································································· 197
Enabling data-group reuse logging ······················································································· 198
Configuring BGP MDT ·············································································································· 198
Configuration prerequisites·································································································· 198
Configuring BGP MDT peers or peer groups ·········································································· 199
Configuring a BGP MDT route reflector ················································································· 199
Displaying and maintaining multicast VPN ···················································································· 200
Multicast VPN configuration examples ························································································· 201

v
Intra-AS MD VPN configuration example ··············································································· 201
Intra-AS M6VPE configuration example················································································· 214
MD VPN inter-AS option C configuration example ··································································· 229
MD VPN inter-AS option B configuration example···································································· 242
Troubleshooting MD VPN·········································································································· 255
A default-MDT cannot be established···················································································· 255
An MVRF cannot be created ······························································································· 256
Configuring MLD snooping····························································· 257
Overview································································································································ 257
MLD snooping ports··········································································································· 257
How MLD snooping works··································································································· 259
Protocols and standards····································································································· 260
Compatibility information ··········································································································· 260
Feature and hardware compatibility ······················································································ 260
Command and hardware compatibility··················································································· 261
MLD snooping configuration task list···························································································· 261
Configuring basic MLD snooping features····················································································· 262
Enabling MLD snooping······································································································ 262
Specifying an MLD snooping version ···················································································· 262
Setting the maximum number of MLD snooping forwarding entries ············································· 263
Setting the MLD last listener query interval············································································· 264
Configuring MLD snooping port features······················································································· 264
Setting aging timers for dynamic ports··················································································· 264
Configuring static ports······································································································· 265
Configuring a port as a simulated member host······································································· 266
Enabling fast-leave processing ···························································································· 266
Disabling a port from becoming a dynamic router port······························································ 267
Configuring the MLD snooping querier ························································································· 267
Configuration prerequisites·································································································· 268
Enabling the MLD snooping querier ······················································································ 268
Configuring parameters for MLD general queries and responses················································ 268
Configuring parameters for MLD messages ·················································································· 269
Configuration prerequisites·································································································· 269
Configuring source IPv6 addresses for MLD messages···························································· 269
Setting the 802.1p priority for MLD messages········································································· 270
Configuring MLD snooping policies······························································································ 271
Configuring an IPv6 multicast group policy············································································· 271
Enabling IPv6 multicast source port filtering············································································ 272
Enabling dropping unknown IPv6 multicast data······································································ 272
Enabling MLD report suppression························································································· 273
Setting the maximum number of IPv6 multicast groups on a port················································ 273
Enabling the IPv6 multicast group replacement feature····························································· 274
Displaying and maintaining MLD snooping···················································································· 275
MLD snooping configuration examples························································································· 277
IPv6 group policy and simulated joining configuration example ·················································· 277
Static port configuration example·························································································· 279
MLD snooping querier configuration example ········································································· 282
Troubleshooting MLD snooping ·································································································· 285
Layer 2 multicast forwarding cannot function ·········································································· 285
IPv6 multicast group policy does not work·············································································· 285
Configuring IPv6 multicast routing and forwarding······························· 286
Overview································································································································ 286
RPF check mechanism······································································································· 286
IPv6 multicast forwarding across IPv6 unicast subnets····························································· 288
Command and hardware compatibility·························································································· 288
Configuration task list················································································································ 288
Enabling IPv6 multicast routing··································································································· 289
Configuring IPv6 multicast routing and forwarding·········································································· 289
Specifying the longest prefix match principle··········································································· 289
Configuring IPv6 multicast load splitting················································································· 289

vi
Configuring an IPv6 multicast forwarding boundary·································································· 290
Configuring static IPv6 multicast MAC address entries ····························································· 290
Enabling IPv6 multicast forwarding between sub-VLANs of a super VLAN ··································· 291
Displaying and maintaining IPv6 multicast routing and forwarding ····················································· 292
Configuration examples············································································································· 294
IPv6 multicast forwarding over a GRE tunnel·········································································· 294
IPv6 multicast forwarding over ADVPN tunnel interfaces··························································· 296
Configuring MLD·········································································· 304
Overview································································································································ 304
How MLDv1 works············································································································· 304
MLDv2 enhancements ······································································································· 306
MLD SSM mapping············································································································ 307
MLD proxying··················································································································· 308
MLD support for VPNs ······································································································· 308
Protocols and standards····································································································· 308
MLD configuration task list········································································································· 309
Configuring basic MLD features·································································································· 309
Enabling MLD··················································································································· 309
Specifying an MLD version·································································································· 310
Configuring a static group member ······················································································· 310
Configuring an IPv6 multicast group policy············································································· 310
Adjusting MLD performance······································································································· 311
Configuring MLD query and response parameters··································································· 311
Enabling fast-leave processing ···························································································· 313
Configuring MLD SSM mappings ································································································ 313
Configuration prerequisites·································································································· 314
Configuration procedure ····································································································· 314
Configuring MLD proxying ········································································································· 314
Configuration prerequisites·································································································· 314
Enabling MLD proxying ······································································································ 314
Enabling IPv6 multicast forwarding on a non-querier interface ··················································· 315
Configuring IPv6 multicast load splitting on an MLD proxy························································· 315
Enabling MLD NSR ·················································································································· 316
Displaying and maintaining MLD································································································· 316
MLD configuration examples······································································································ 317
Basic MLD features configuration examples ··········································································· 317
MLD SSM mapping configuration example············································································· 319
MLD proxying configuration example ···················································································· 322
Troubleshooting MLD················································································································ 323
No member information exists on the receiver-side router························································· 323
Inconsistent membership information on the routers on the same subnet····································· 324
Configuring IPv6 PIM ···································································· 325
Overview································································································································ 325
IPv6 PIM-DM overview······································································································· 325
IPv6 PIM-SM overview ······································································································· 327
IPv6 BIDIR-PIM overview···································································································· 333
IPv6 administrative scoping overview···················································································· 336
IPv6 PIM-SSM overview····································································································· 338
Relationship among IPv6 PIM protocols················································································· 339
IPv6 PIM support for VPNs·································································································· 340
Protocols and standards····································································································· 340
Configuring IPv6 PIM-DM·········································································································· 340
IPv6 PIM-DM configuration task list······················································································· 341
Configuration prerequisites·································································································· 341
Enabling IPv6 PIM-DM······································································································· 341
Enabling the state refresh feature························································································· 341
Configuring state refresh parameters ···················································································· 342
Configuring IPv6 PIM-DM graft retry timer·············································································· 342
Configuring IPv6 PIM-SM ·········································································································· 343
IPv6 PIM-SM configuration task list······················································································· 343

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Configuration prerequisites·································································································· 343
Enabling IPv6 PIM-SM ······································································································· 343
Configuring an RP············································································································· 344
Configuring a BSR············································································································· 346
Configuring IPv6 multicast source registration········································································· 348
Configuring the switchover to SPT························································································ 349
Configuring IPv6 BIDIR-PIM······································································································· 349
IPv6 BIDIR-PIM configuration task list··················································································· 349
Configuration prerequisites·································································································· 350
Enabling IPv6 BIDIR-PIM···································································································· 350
Configuring an RP············································································································· 351
Configuring a BSR············································································································· 353
Configuring IPv6 PIM-SSM ········································································································ 355
IPv6 PIM-SSM configuration task list····················································································· 355
Configuration prerequisites·································································································· 355
Enabling IPv6 PIM-SM ······································································································· 355
Configuring the IPv6 SSM group range·················································································· 356
Configuring common IPv6 PIM features ······················································································· 356
Configuration task list········································································································· 356
Configuration prerequisites·································································································· 356
Configuring an IPv6 multicast source policy············································································ 357
Configuring an IPv6 PIM hello policy····················································································· 357
Configuring IPv6 PIM hello message options·········································································· 357
Configuring common IPv6 PIM timers ··················································································· 359
Setting the maximum size of each join or prune message ························································· 360
Enabling BFD for IPv6 PIM·································································································· 361
Enabling IPv6 PIM passive mode ························································································· 361
Enabling IPv6 PIM NSR······································································································ 361
Enabling SNMP notifications for IPv6 PIM·············································································· 362
Enabling NBMA mode for IPv6 ADVPN tunnel interfaces·························································· 362
Displaying and maintaining IPv6 PIM··························································································· 363
IPv6 PIM configuration examples································································································ 364
IPv6 PIM-DM configuration example ····················································································· 364
IPv6 PIM-SM non-scoped zone configuration example····························································· 367
IPv6 PIM-SM admin-scoped zone configuration example·························································· 370
IPv6 BIDIR-PIM configuration example·················································································· 375
IPv6 PIM-SSM configuration example ··················································································· 380
Troubleshooting IPv6 PIM·········································································································· 382
A multicast distribution tree cannot be correctly built ································································ 382
IPv6 multicast data is abnormally terminated on an intermediate router ······································· 383
An RP cannot join an SPT in IPv6 PIM-SM············································································· 383
An RPT cannot be built or IPv6 multicast source registration fails in IPv6 PIM-SM························· 383
Document conventions and icons ···················································· 385
Conventions···························································································································· 385
Network topology icons ············································································································· 386
Support and other resources··························································· 387
Accessing Hewlett Packard Enterprise Support·············································································· 387
Accessing updates··················································································································· 387
Websites ························································································································· 388
Customer self repair ·········································································································· 388
Remote support ················································································································ 388
Documentation feedback ···································································································· 388
Index························································································· 390

1
Multicast overview
Introduction to multicast
As a technique that coexists with unicast and broadcast, the multicast technique effectively
addresses the issue of point-to-multipoint data transmission. By enabling high-efficiency
point-to-multipoint data transmission over a network, multicast greatly saves network bandwidth and
reduces network load.
By using multicast technology, a network operator can easily provide bandwidth-critical and
time-critical information services. These services include live webcasting, Web TV, distance
learning, telemedicine, Web radio, and real-time video conferencing.
Information transmission techniques
The information transmission techniques include unicast, broadcast, and multicast.
Unicast
In unicast transmission, the information source must send a separate copy of information to each
host that needs the information.
Figure 1 Unicast transmission
In Figure 1, Host B, Host D, and Host E need the information. Aseparate transmission channel must
be established from the information source to each of these hosts.
In unicast transmission, the traffic transmitted over the network is proportional to the number of hosts
that need the information. If a large number of hosts need the information, the information source
must send a separate copy of the same information to each of these hosts. Sending many copies
can place a tremendous pressure on the information source and the network bandwidth.
Unicast is not suitable for batch transmission of information.
Source
Receiver
Receiver
Receiver
Host A
Host B
Host C
Host D
Host E
Packets for Host B
Packets for Host D
Packets for Host E
IP network