Method and device for allocating packet switching resource

A method for allocating a packet switching resource, comprising:

• collecting, by a control plane unit, network information, and sending the network information to the management plane unit of the network management device;
• receiving, by a data plane unit, a routing table/forwarding table for a plurality of different network layers sent by a management plane unit of a network management device;
• and
• determining, by the data plane unit, a next hop node according to the routing table/forwarding table, which is generated by the management plane unit of the network management device instead of the control plane unit;
• and
• sending, by the data plane unit, received service data to the next hop node.

A network management device, comprising a management plane unit, wherein the management plane unit comprises:

• a receiving subunit, configured to receive a service transport request carrying service information, wherein the service information comprises source node information, sink node information, quality of service QoS requirement information, bandwidth requirement information and network information sent by a control plane unit of a packet switching device;
• a processing subunit, connected to the receiving subunit, the processing subunit configured to determine at least one transport path according to the service information, the network information, and a preset resource allocation policy including a hop count, a delay, a cost, an availability, and a shortest path, and the processing subunit configured to generate a routing table/forwarding table for a plurality of different network layers according to the at least one transport path;
• and
• a sending subunit, connected to the processing subunit, and configured to send the routing table/forwarding table to data plane units of packet switching devices of each transport path of the at least one transport path.

A packet switching device, comprising a data plane unit, wherein the data plane unit comprises:

• a control plane unit, configured to collect network information, and configured to send the network information to a management plane unit of a network management device;
• a receiving subunit, configured to receive a routing table/forwarding table sent by the management plane unit of the network management device;
• a processing subunit, connected to the receiving subunit, and configured to determine a next hop node according to the routing table/forwarding table for a plurality of different network layers, which is generated by the management plane unit of the network management device instead of the control plane unit;
• and
• a sending subunit, connected to the processing subunit, and configured to send received service data to the next hop node.

A network management device, comprising a management plane unit, wherein the management plane unit comprises:

• a receiver, configured to receive a service transport request carrying service information, wherein the service information comprises source node information, sink node information, quality of service QoS requirement information, bandwidth requirement information and network information sent by a control plane unit of a packet switching device;
• a processor, connected to the receiver, and configured to determine at least one transport path according to the service information, the network information, and a preset resource allocation policy including a hop count, a delay, a cost, an availability and a shortest path, and configured to generate a routing table/forwarding table for a plurality of different network layers according to the at least one transport path;
• and
• a sender, connected to the processor, and configured to send the routing table/forwarding table to data plane units of packet switching devices of each transport path of the at least one transport path.

A packet switching device, comprising a data plane unit and a control plane unit, wherein the data plane unit comprises:

• a receiver, configured to receive a routing table/forwarding table sent by a network management device;
• a processor, connected to the receiver, and configured to determine a next hop node according to the routing table/forwarding table for a plurality of different network layers, which is generated by the management plane unit instead of the control plane unit;
• and
• a sender, connected to the processor, and configured to send received service data to the next hop node, and
• wherein the control plane unit is configured to collect network information, and configured to send the network information to the management plane unit of a network management device.