| 摘要 |
<p>Disclosed in an embodiment of the present invention are a service transmission method, and a device and system for realizing the same, the method comprising: identifying the type of a received client service, encapsulating the OTN service, and generating an OTN signal frame or a low-order ODU; querying a label forwarding information base to acquire the forwarding information of the OTN signal frame or the low-order ODU; acquiring label information and inserting the label information into an overhead of the OTN signal frame or the low-order ODU; and forwarding the OTN signal frame according to the forwarding information. The method further comprising: receiving an OTN signal frame sent by an upstream node and extracting label information from an overhead of the OTN signal frame; querying the label forwarding information base according to the label information to acquire the forwarding information of the OTN signal frame; and forwarding the OTN signal frame to a downstream node according to the forwarding information. Because both service forwarding and transmission use OTN technology, the embodiment of the present invention can forward and transmit a service only on an OTN plane, thereby reducing the number of hardware modules on an MPLS plane.</p> |
