HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 274
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Field Number of Sources Source Address( i ) Description • This field is set to 0 in a general query message or a multicast-address-specific query message. • This field represents the number of source addresses in a multicast-address-and-source-specific query message. IPv6 multicast source address in a multicast-address-specific query message. (i = 1, 2, .., n, where n represents the number of multicast source addresses.) MLD report message A host sends an MLD report message to report the current multicast listening state. Figure 75 shows the MLD report message format. Figure 75 MLDv2 report message format Table 10 MLDv2 report message field description Field Type = 143 Reserved Checksum Number of Multicast Address Records Multicast Address Record(i) Description Message type. For a report message, this field is set to 143. The Reserved fields are set to 0 on transmission and ignored on reception. Standard IPv6 checksum. This field indicates how many IPv6 multicast address records are present in this report message. This field represents information of each IPv6 multicast address the host listens to on the interface from which the report message is sent, including record type, IPv6 multicast address, and IPv6 multicast source address on the sender. (i= 1, 2, ... m, where m represents the number of IPv6 multicast address records). 263
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