HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 20
Multicast protocols, IGMP snooping, multicast VLAN, IGMP, PIM, MSDP, and MBGP are for IPv4, and MLD
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Figure 7 An example of IPv6-to-MAC address mapping Multicast protocols Generally, Layer 3 multicast refers to IP multicast working at the network layer. The corresponding multicast protocols are Layer 3 multicast protocols, which include IGMP, MLD, PIM, IPv6 PIM, MSDP, MBGP, and IPv6 MBGP. Layer 2 multicast refers to IP multicast working at the data link layer. The corresponding multicast protocols are Layer 2 multicast protocols, which include IGMP snooping, MLD snooping, PIM snooping, IPv6 PIM snooping, multicast VLAN, and IPv6 multicast VLAN. IGMP snooping, PIM snooping, multicast VLAN, IGMP, PIM, MSDP, and MBGP are for IPv4, and MLD snooping, IPv6 PIM snooping, IPv6 multicast VLAN, MLD, IPv6 PIM, and IPv6 MBGP are for IPv6. This section provides only general descriptions about applications and functions of the Layer 2 and Layer 3 multicast protocols in a network. For more information about these protocols, see the related chapters. Layer 3 multicast protocols Layer 3 multicast protocols include multicast group management protocols and multicast routing protocols. Figure 8 Positions of Layer 3 multicast protocols • Multicast group management protocols Typically, the Internet Group Management Protocol (IGMP) or Multicast Listener Discovery Protocol (MLD) is used between hosts and Layer 3 multicast devices that directly connect to the hosts. These 9
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