AI, ML, Development + Cisco Learning Blog Learning about Machine Learning, Artificial Intelligence, related devlopment topics and formerly Routing and Switching, Datacenter, Security and other topics, CCIE #23664, Frank Wagner

11. August 2006

Dense Mode – Sparse Mode

Filed under: Multicast — ocsic @ 11:10
Dense Mode
You should use Dense Mode for dense population of hosts and plentiful bandwidth
  • DVMRP Distance Vector Multicast Routing Protocol
    • Used frequently on the MBONE
    • Uses reverse path flooding
    • Periodic floodings to offer groups to new hosts
    • Unicast path based on hop counts
    • Cisco routers use PIM to unteract with DVMRP routers, but do not directly implement DVMRP
Sparse Mode
  • Use for a sparse distribution of multicast members
  • assumes specific requests are used to join
  • used when crossing WANs

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