vii
Enabling IPv6 multicast group replacement ····································································································· 301
Enabling the MLD snooping host tracking function ························································································· 302
Displaying and maintaining MLD snooping ·············································································································· 302
MLD snooping configuration examples ····················································································································· 303
IPv6 group policy and simulated joining configuration example ·································································· 303
Static port configuration example ····················································································································· 306
MLD snooping querier configuration example ································································································· 309
MLD snooping proxying configuration example ······························································································ 311
Troubleshooting MLD snooping ·································································································································· 313
Layer 2 multicast forwarding cannot work ······································································································· 313
Configured IPv6 multicast group policy fails to take effect ············································································· 314
Appendix ······································································································································································ 314
Processing of IPv6 multicast protocol messages ······························································································· 314
Configuring IPv6 PIM snooping ····························································································································· 316
Overview ······································································································································································· 316
Configuring IPv6 PIM snooping ·································································································································· 317
Displaying and maintaining IPv6 PIM snooping ······································································································ 318
IPv6 PIM snooping configuration example ················································································································ 318
Troubleshooting IPv6 PIM snooping ··························································································································· 321
IPv6 PIM snooping does not work ····················································································································· 321
Some downstream IPv6 PIM-capable routers cannot receive multicast data ················································ 321
Configuring IPv6 multicast VLANs ························································································································· 323
Overview ······································································································································································· 323
IPv6 multicast VLAN configuration task list ··············································································································· 324
Configuring an IPv6 multicast VLAN ·························································································································· 324
Configuration guidelines ···································································································································· 324
Configuration procedure ···································································································································· 325
Setting the maximum number of forwarding entries for IPv6 multicast VLANs ······················································ 325
Displaying and maintaining an IPv6 multicast VLAN ······························································································· 325
IPv6 multicast VLAN configuration example ············································································································· 326
Configuring IPv6 multicast routing and forwarding ····························································································· 331
Overview ······································································································································································· 331
RPF check mechanism ········································································································································· 331
RPF check implementation in IPv6 multicast ····································································································· 332
Configuration task list ·················································································································································· 333
Enabling IPv6 multicast routing ··································································································································· 334
Configuring IPv6 multicast routing and forwarding ································································································· 334
Configuring an IPv6 multicast routing policy ··································································································· 334
Configuring an IPv6 multicast forwarding range ····························································································· 335
Configuring the IPv6 multicast forwarding table size ······················································································ 335
Configuring IPv6 static multicast MAC address entries ··················································································· 336
Configuring RPF check failure processing ········································································································ 337
Displaying and maintaining IPv6 multicast routing and forwarding ······································································ 338
Troubleshooting IPv6 multicast routing and forwarding ·························································································· 340
Abnormal termination of IPv6 multicast data ··································································································· 340
Configuring MLD ····················································································································································· 341
Overview ······································································································································································· 341
MLD versions ························································································································································ 341
How MLDv1 operates ········································································································································· 341
How MLDv2 operates ········································································································································· 343
MLD message types············································································································································· 344
MLD SSM mapping ············································································································································· 347
