TP-LINK JetStream Especificaciones Pagina 263

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 420
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 262
251
Figure 11-16 The Locations of C-R P, C-BSR and BSR
RPT Building
Figure 11-17 RPT Topology in PIM SM
As shown in Figure 11-17, the establishing process of RPT is illustrated below:
(1) When a receiver joins a multicast group G, it informs the directly connected DR with IGMP
message;
(2) After receiving the IGMP message from multicast group G, the DR sends PIM join message
toward the corresponding root, also known as the RP;
(3) The join message travels router-by-router toward the root, constructing a branch of the RPT
as it goes. These routers generate (*, G) entries in their forwarding tables with * representing
any multicast source. The RPT works with RP as the root node, and DR as the branch node.
When multicast data for multicast group G is sent to RP, it will travels along the constructed RPT
to DR and finally arrives at the receivers.
When a receiver is no longer interested in the multicast group data, its directly connected DR will
send prune message up the RPT toward the group’s corresponding RP; after the upstream node
receives this prune message, it will delete the link to the downstream node in its interface list and
Vista de pagina 262
1 2 ... 258 259 260 261 262 263 264 265 266 267 268 ... 419 420

Comentarios a estos manuales

Sin comentarios