HP 5920 series Configuration Manual page 14

Address Description
224.0.0.14 RSVP encapsulation.
224.0.0.15 All Core-Based Tree (CBT) routers.
224.0.0.16 Designated SBM.
224.0.0.17 All SBMs.
224.0.0.18 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 1 1 1 1 1 1 1 1, which indicates 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
Scope—The Scope field contains four bits, which indicate the scope of the IPv6 internetwork for
which the multicast traffic is intended.
Description
Reserved, set to 0.
•
When set to 0, it indicates that this address is an IPv6 multicast
address without an embedded RP address.
•
When set to 1, it indicates 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 indicates that this address is an IPv6 multicast
address not based on a unicast prefix.
•
When set to 1, it indicates 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 indicates that this address is an IPv6 multicast
address permanently-assigned by IANA.
•
When set to 1, it indicates that this address is a transient, or
dynamically assigned IPv6 multicast address.
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