Ethernet Spanning Tree Provision
OwnerJanos Farkas, Csaba Antal +2inventors
InventorsJanos Farkas, Csaba Antal, Attila Takacs, Panagiotis Saltsidis
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Abstract
A method and apparatus for providing a Spanning Tree to nodes on an Ethernet network. A Spanning Tree topology is calculated, and a Resource Reservation Protocol Traffic Extension path message is generated. The path message contains at least a part of the Spanning Tree topology. The path message is sent to bridges on the Ethernet network. The bridge nodes that receive the path message configure their port states depending on the information contained in the path message, and may also configure port Virtual Local Area Network membership.
Claims15
A method of providing a Spanning Tree to nodes on an Ethernet network, the method comprising:
- calculating a Spanning Tree topology;
- generating a Resource Reservation Protocol Traffic Extension path message, the message containing at least a part of the Spanning Tree topology;
- and
- sending the path message to bridge nodes on the Ethernet network.
A node in an Ethernet network, having a Path Computational Element (PCE) comprising:
- processing means for calculating a Spanning Tree topology for the Ethernet network;
- means for generating a Resource Reservation Protocol Traffic Extension path message, the message containing at least a part of the Spanning Tree topology;
- and
- a transmitter for sending the path message to bridge nodes on the Ethernet network.
A bridging node in an Ethernet network, the bridging node comprising:
- a receiver for receiving a Resource Reservation Protocol Traffic Extension path message, the message containing at least a part of a Spanning Tree topology;
- means to set port states to Discarding or Forwarding depending on the Spanning Tree topology contained in the message.
An Ethernet network system comprising:
- calculating means for calculating a Spanning Tree topology;
- means for generating a Resource Reservation Protocol Traffic Extension path message, the message containing at least a part of the Spanning Tree topology;
- transmission means for transmitting the path message to bridge nodes on the Ethernet network;
- and
- means for configuring bridge node port states based on the information contained in the path message.
Dependencies are inferred from the claim text.