IP Multicast Service Model (Cont.)

• IP group addresses

  Class D address—high-order 3 bits are set (224.0.0.0)
  
  Range from 224.0.0.0 through 239.255.255.255

• Well known addresses designated by IANA

  Reserved use: 224.0.0.0 through 224.0.0.255
  
  224.0.0.1—all multicast systems on subnet
  
  224.0.0.2—all routers on subnet

• Transient addresses, assigned and reclaimed dynamically

  Global scope: 224.0.1.0-238.255.255.255
  
  Limited scope: 239.0.0.0-239.255.255.255
  Site-local scope: 239.253.0.0/16
  
  Organization-local scope: 239.192.0.0/14

Previous slide

Next slide

Back to first slide

View graphic version