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PIM Configuration Guide group membership • • Hosts Switch B Switch A Internet Backbone IGMP...
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PIM Configuration Guide neighbors Designated Router (DR) Last-hop DR. First-hop DR upstream. downstream- Source Last Hop DR Source tree First Hop DR (S,G) Shared tree (*,G) Shared tree (*,G) Receivers Intermediate Router reverse-path forwarding (RPF) check...
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PIM Configuration Guide shared tree or RPT Rendezvous Point (RP). Candidate RP (CRP) Bootstrap Router (BSR) RP-set Source- Specific Tree or Shortest Path Tree (SPT) Source Receivers Join Prune...
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PIM Configuration Guide 1.12.3.1.2 RP Threshold...
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PIM Configuration Guide 1.12.3.2 SPT at Last-Hop DR Shared Tree or RP Tree Source-tree or Shortest Path Tree (SPT) SPT switchover at Last-hop DR • • 1.12.3.2.1 SPT Switch Period...