IP Multicast Service Model (Cont.)

• Mapping IP group addresses to data link multicast addresses

  RFC 1112 defines OUI 0x01005e
  
  Low-order 23-bits of IP address map into low-order 23 bits of IEEE address (eg. 224.2.2.2–01005e.020202)
  Ethernet and FDDI use this mapping
  Token Ring uses functional address-c000.4000.0000

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