| 摘要 |
A method for forwarding constraint-based label packets in an MPLS(Multi Protocol Label Switch) network is provided to differentiate QoS for each subscriber by executing CR-LSP(Constraint-based Label Switched Path) traffic mapping with different QoS for each subscriber interface. A constraint-based label packet forwarding apparatus(100) is comprised of a label switch path controller(110) and a packet forwarding engine(120). The label switch path controller(110), transmitting and receiving labels with an MPLS network, executes CR-LSP traffic mapping. Receiving subscriber interface information and CR(Constraint-based Routing) information for each subscriber interface, the label switch path controller(110) executes CR-LSP traffic mapping for each subscriber interface and outputs CR-LSP traffic mapping information for each subscriber interface to the packet forwarding engine(120). The packet forwarding engine(120), comprising a packet forwarding table(121) containing a subscriber interface table which stores CR-LSP traffic mapping information for each subscriber interface, executes subscriber interface-based packet forwarding for the traffic inputted from each subscriber interface.
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