| 摘要 |
A system for protection switching in radio networks includes a plurality of nodes, a plurality of links of Ethernet interconnecting the nodes and forming a network, at least one wireless link interconnecting two of the nodes, and two Virtual Local Area Networks (VLAN) within the network, only the first VLAN comprising the wireless link. The network transports packets of Ethernet associated with a first Classes of Service (CoS) and a second CoS via the first VLAN. Upon detection of a reduction in performance of the wireless link, the network maps the second CoS to the second VLAN, and by that offloading traffic associated with the second CoS from the wireless link. |
| 主权项 |
1. A method for protection switching in radio networks, comprising:
establishing a primary path and a protection path for Layer-2 (L2) communication between a first node and a second node, the primary path comprising two links successively connected by a relay node, and at least one of the links is a wireless link; assigning a first L2 Virtual Circuit (VC) to the primary path, and a second L2 VC to the protection path; mapping, by the first node, a first class of service (CoS) and a second CoS to the first L2 VC; transporting L2 packets associated with the first CoS and the second CoS, from the first node to the second node, via the primary path; detecting, by a node associated with the wireless link, a reduction in performance of the wireless link; and, as a reaction to the detection, re-mapping the second CoS to the second L2 VC, by the first node, in order to transport packets associated with the second CoS to the second node via the protection path, while still transporting packets associated with the first CoS to the second node via the primary path. |
