Multicast tutorial PDF - Garr
Multicast tutorial PDF - Garr
Multicast tutorial PDF - Garr
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<strong>Multicast</strong> AddressingIP <strong>Multicast</strong> Group Addresses224.0.0.0–239.255.255.255Class “D” Address SpaceHigh order bits of 1st Octet = “1110”TTL value defines scope and limits distributionIP multicast packet must have TTL > interface TTL or it isdiscardedvalues are: 0=host, 1=network, 32=same site, 64=sameregion, 128=same continent, 255=unrestrictedNo longer recommended as a reliable scoping mechanism23
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