340
MLD messages
The following descriptions are based on MLDv2 messages.
MLD query message
An MLD querier learns the multicast listening state of neighbor interfaces by sending MLD query
messages. The dark area in Figure 85 s
hows the MLDv1 message format.
Figure 85 MLDv2 query message format
Table 9 MLDv2 query message field description
Field Descri
tion
Type = 130
Message type. For a query message, this field is set to 130.
Code
Initialized to zero.
Checksum
Standard IPv6 checksum.
Maximum Response Delay
Maximum response delay allowed before a host sends a report message.
Reserved
Reserved field and initialized to zero.
Multicast Address (128 bits)
Type = 130 Code
07 15 31
Checksum
Maximum Response Delay Reserved
Reserved S QRV QQIC Number of Sources (n)
34
Source Address [1] (128 bits)
Source Address [n] (128 bits)
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