IP Multicast -  Embrace the challenge? Paul Catchpole Network Specialist  University of Warwick
Introduction <ul><li>Paul Catchpole -  [email_address]   </li></ul><ul><li>What, why, who...  </li></ul><ul><li>Making it ...
Multicast Defined <ul><li>What is it? </li></ul><ul><ul><li>Packet type </li></ul></ul><ul><ul><li>Addressing inc public –...
Multicast Defined <ul><li>What's the point?  </li></ul>
Multicast Defined <ul><li>Why do I want it?  </li></ul>
Implementations thoughts! <ul><li>PIM – router to router protocol </li></ul><ul><li>IGMP – host to router protocol  </li><...
Janet Guidance <ul><li>Janet Multicast suggestions / requirements  </li></ul><ul><li>Find the doc!!!!!! </li></ul><ul><li>...
Decision Time <ul><li>Implementation Decisions  </li></ul><ul><li>RP choices </li></ul><ul><li>PIM BSR / (cover older auto...
UoW Approach <ul><li>Existing Network - Extreme </li></ul>
UoW Approach <ul><li>Cisco Network Replacement Project  </li></ul>
Common Problems <ul><li>...and possible solutions </li></ul><ul><ul><li>Software support </li></ul></ul><ul><ul><li>Firewa...
Troubleshooting <ul><li>The basic idea! </li></ul><ul><ul><li>Look for this!  </li></ul></ul>
Troubleshooting <ul><li>Extreme </li></ul><ul><ul><li>Use these! </li></ul></ul><ul><li>Cisco </li></ul><ul><ul><li>Use th...
Management & Security <ul><li>Scoping </li></ul><ul><li>Access lists </li></ul><ul><li>Etc etc etc  </li></ul>
The future... <ul><li>Source specific multicast  </li></ul><ul><li>IPv6 </li></ul><ul><li>More – other stuff...  </li></ul>
And that's it... <ul><li>Questions?  </li></ul><ul><li>[email_address]   </li></ul>
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Multicast - Embrace the challenge?

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Presented at JANET Networkshop 2010, on behalf of the University of Warwick...

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Multicast - Embrace the challenge?

  1. 1. IP Multicast - Embrace the challenge? Paul Catchpole Network Specialist University of Warwick
  2. 2. Introduction <ul><li>Paul Catchpole - [email_address] </li></ul><ul><li>What, why, who... </li></ul><ul><li>Making it work </li></ul><ul><li>Keeping it working </li></ul><ul><li>Securing it </li></ul><ul><li>What's next? </li></ul>
  3. 3. Multicast Defined <ul><li>What is it? </li></ul><ul><ul><li>Packet type </li></ul></ul><ul><ul><li>Addressing inc public – Janet GLOP </li></ul></ul>
  4. 4. Multicast Defined <ul><li>What's the point? </li></ul>
  5. 5. Multicast Defined <ul><li>Why do I want it? </li></ul>
  6. 6. Implementations thoughts! <ul><li>PIM – router to router protocol </li></ul><ul><li>IGMP – host to router protocol </li></ul><ul><li>IGMP snooping / PIM snooping – switch intelligence </li></ul><ul><li>Lan design – routing </li></ul><ul><li>WAN interconnection / service layer </li></ul><ul><li>Wireless </li></ul>
  7. 7. Janet Guidance <ul><li>Janet Multicast suggestions / requirements </li></ul><ul><li>Find the doc!!!!!! </li></ul><ul><li>Rendezvous points / MSDP / MBGP </li></ul>
  8. 8. Decision Time <ul><li>Implementation Decisions </li></ul><ul><li>RP choices </li></ul><ul><li>PIM BSR / (cover older auto-rp for Cisco) - or static assignment </li></ul><ul><li>Addressing </li></ul>
  9. 9. UoW Approach <ul><li>Existing Network - Extreme </li></ul>
  10. 10. UoW Approach <ul><li>Cisco Network Replacement Project </li></ul>
  11. 11. Common Problems <ul><li>...and possible solutions </li></ul><ul><ul><li>Software support </li></ul></ul><ul><ul><li>Firewalls! </li></ul></ul><ul><ul><li>Tunnelling </li></ul></ul><ul><ul><li>Flooding </li></ul></ul><ul><ul><li>Site local applications - addressing </li></ul></ul>
  12. 12. Troubleshooting <ul><li>The basic idea! </li></ul><ul><ul><li>Look for this! </li></ul></ul>
  13. 13. Troubleshooting <ul><li>Extreme </li></ul><ul><ul><li>Use these! </li></ul></ul><ul><li>Cisco </li></ul><ul><ul><li>Use these! </li></ul></ul><ul><li>Everything else! </li></ul>
  14. 14. Management & Security <ul><li>Scoping </li></ul><ul><li>Access lists </li></ul><ul><li>Etc etc etc </li></ul>
  15. 15. The future... <ul><li>Source specific multicast </li></ul><ul><li>IPv6 </li></ul><ul><li>More – other stuff... </li></ul>
  16. 16. And that's it... <ul><li>Questions? </li></ul><ul><li>[email_address] </li></ul>

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