| 摘要 |
<p>A network arranged to implement label switched paths, comprising: an ingress label edge router (LER),atleast one label switching router (LSR),andan egress LER, in which the ingress LER is connected to the egress LER via one or more ofthe LSRs. Insaid network the ingress LER is arranged to transmit, in use, a path message for setting up a bidirectional label switched path (LSP) from the ingress LER to the egress LER via at least one LSR in response for a request for such an LSP. The path message istransmitted over the path ofthe LSP to be created, in which the path message comprises a first parameter indicative of the bandwidth to be assigned to data traversing the LSP in a first, downstream, direction from ingress LER to egress LER and a second parameter indicative of the bandwidth to be assigned to data traversing the LSP in an opposite, upstream, direction, in which the upstream and downstream bandwidths are different.</p> |
