HP 6125XLG R2306-HP 6125XLG Blade Switch IP Multicast Configuration Guide - Page 14
Address, Description, Flags, multicast address.
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Address 224.0.0.13 224.0.0.14 224.0.0.15 224.0.0.16 224.0.0.17 224.0.0.18 Description All Protocol Independent Multicast (PIM) routers. RSVP encapsulation. All Core-Based Tree (CBT) routers. Designated SBM. All SBMs. VRRP. • IPv6 multicast addresses: Figure 4 IPv6 multicast format The following describes the fields of an IPv6 multicast address: { 0xFF-The most significant eight bits are 11111111, which means that this address is an IPv6 multicast address. { Flags-The Flags field contains four bits. Figure 5 Flags field format Table 4 Flags field description Bit 0 R P T Description Reserved, set to 0. • When set to 0, it means that this address is an IPv6 multicast address without an embedded RP address. • When set to 1, it means that this address is an IPv6 multicast address with an embedded RP address. (The P and T bits must also be set to 1.) • When set to 0, it means that this address is an IPv6 multicast address not based on a unicast prefix. • When set to 1, it means that this address is an IPv6 multicast address based on a unicast prefix. (The T bit must also be set to 1.) • When set to 0, it means that this address is an IPv6 multicast address permanently-assigned by IANA. • When set to 1, it means that this address is a transient, or dynamically assigned IPv6 multicast address. 7