Zyxel-communications ADSL2+ Ethernet/USB Gateway 660RU-Tx Series Manual do Utilizador Página 271

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 286
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 270
Prestige 660RU-Tx Series User’s Guide
Appendix E 270
Appendix E
Virtual Circuit Topology
ATM is a connection-oriented technology, meaning that it sets up virtual circuits over which
end systems communicate. The terminology for virtual circuits is as follows:
Virtual Channel Logical connections between ATM switches
Virtual Path A bundle of virtual channels
Virtual CircuitA series of virtual paths between circuit end points
Figure 186 Virtual Circuit Topology
Think of a virtual path as a cable that contains a bundle of wires. The cable connects two
points and wires within the cable provide individual circuits between the two points. In an
ATM cell header, a VPI (Virtual Path Identifier) identifies a link formed by a virtual path; a
VCI (Virtual Channel Identifier) identifies a channel within a virtual path.
The VPI and VCI identify a virtual path, that is, termination points between ATM switches. A
series of virtual paths make up a virtual circuit.
Your ISP (Internet Service Provider) should supply you with VPI/VCI numbers.
Vista de página 270
1 2 ... 266 267 268 269 270 271 272 273 274 275 276 ... 285 286

Comentários a estes Manuais

Sem comentários