H3C S5500-EI Configuration Manual page 392

Table 11 Values in the hashing algorithm
Value
Value
G
M
C
i
&
XOR
mod
Embedded RP
The embedded RP mechanism enables a router to resolve the RP address from an IPv6 multicast address
so that the IPv6 multicast group is mapped to an RP. This RP can take the place of the statically configured
RP or the RP dynamically calculated based on the BSR mechanism. The DR does not need to identify the
RP address beforehand. The specific process is as follows.
At the receiver side, the following occur:
A receiver host initiates an MLD report to announce that it is joining an IPv6 multicast group.
1.
After receiving the MLD report, the receiver-side DR resolves the RP address embedded in the IPv6
2.
multicast address and sends a join message to the RP.
At the IPv6 multicast source side, the following occur:
The IPv6 multicast source sends IPv6 multicast traffic to the IPv6 multicast group.
1.
The source-side DR resolves the RP address embedded in the IPv6 multicast address, and sends a
2.
register message to the RP.
Description
Hash value.
The digest from the exclusive-or (XOR) operation between the 32-bit segments of
the IPv6 multicast group address. For example, if the IPv6 multicast address is
FF0E:C20:1A3:63::101, G = 0xFF0E0C20 XOR 0x01A30063 XOR
0x00000000 XOR 0x00000101.
Hash mask length.
The digest from the exclusive-or (XOR) operation between the 32-bit segments of
the C-RP IPv6 address. For example, if the IPv6 address of the C-RP is
3FFE:B00:C18:1::10, C
0x00000000 XOR 0x00000010.
Logical operator of "and."
Logical operator of "exclusive-or."
Modulo operator, which gives the remainder of an integer division.
373
= 0x3FFE0B00 XOR 0x0C180001 XOR
i