Switch and packet forwarding method
AssigneeFujitsu Limited
InventorYuji Tochio
Life of this patent
Estimating the term…
Abstract
A switch that performs packet forwarding processing based on a label for a connection in which a communication path is specified by the label, includes a receiving unit that receives loopback information with a label of a first layer used for packet forwarding for a first connection, and a packet processing unit that transmits a first loopback packet having a packet including the loopback information, a label of the first layer, and a label of a second layer used for packet forwarding for a second connection layered on the label of the first layer, and also transmits a second loopback packet having the packet including the loopback information and the label of the second layer.
Claims12
A switch that performs packet forwarding processing based on a label for a connection in which a communication path is specified by the label, the switch comprising:
- a receiving unit that receives a packet including loopback information with a label of a first layer used for packet forwarding for a first connection;
- and
- a packet processing unit that transmits a first loopback packet having a packet including the loopback information, a label of the first layer, and a label of a second layer used for packet forwarding for a second connection layered on the label of the first layer, and also transmits a second loopback packet having the packet including the loopback information and the label of the second layer.
A switch that performs packet forwarding based on a label for a connection in which a communication path is specified by the label, and is capable of setting a management section in layers to the connection, the switch comprising:
- a receiving unit that receives a packet including loopback information;
- and
- a packet processing unit that transmits a loopback packet of a first level including the received loopback information that is set as the first level in such a way that packet forwarding is performed in a first management section, and the loopback packet of a second level including the received loopback information that is set as the second level in such a way that packet forwarding is performed in the second management section that is included in the first management section and is also layered for the first management section.
A packet forwarding method that performs packet forwarding processing based on a label for a connection in which a communication path is specified by the label, the packet forwarding method comprising:
- receiving a packet including loopback information with the label of a first layer used for packet forwarding for a first connection;
- and
- transmitting a first loopback packet having the packet including the loopback information, the label of the first layer, and the label of a second layer used for the packet forwarding for a second connection that is layered on the label of the first layer, the second loopback packet that has the packet including the loopback information and the label of the second layer but does not have the label of the first layer.
Dependencies are inferred from the claim text.