Abstract: An apparatus comprising an end point coupled to a peer end point via a composite link comprising a plurality of component links and configured to signal the peer end point to indicate an aggregated label switched path (LSP) established on the composite link and one of a plurality of data flow identifiers for the aggregated LSP, wherein the aggregated LSP and a data flow identifier field are signaled from the end point using a signaling protocol. Also disclosed is a method implemented by a network component comprising receiving using a receiver a message comprising a Type-Length-Value (TLV) that indicates that a LSP established on a composite link with a peer end point is an aggregated LSP, and receiving in the TLV a plurality of inner labels that correspond to a plurality of data flows of the aggregated LSP.

Abstract: A method for establishing tunnels includes establishing a first unidirectional tunnel from a first node to a second node, and sending a first instruction for establishing a reverse tunnel of the first tunnel, when sending the first instruction to the second node, triggering the establishment of a second unidirectional tunnel from the second node to the first node, and binding the second tunnel to the first tunnel as the reverse tunnel of the first tunnel. A system for establishing tunnels is also provided. The establishment of a reverse tunnel may be automatically triggered after a forward tunnel is established, and a bidirectional tunnel is established.

Abstract: An apparatus comprising an end point coupled to a peer end point via a composite link comprising a plurality of component links and configured to signal the peer end point to indicate an aggregated label switched path (LSP) established on the composite link and one of a plurality of data flow identifiers for the aggregated LSP, wherein the aggregated LSP and a data flow identifier field are signaled from the end point using a signaling protocol. Also disclosed is a method implemented by a network component comprising receiving using a receiver a message comprising a Type-Length-Value (TLV) that indicates that a LSP established on a composite link with a peer end point is an aggregated LSP, and receiving in the TLV a plurality of inner labels that correspond to a plurality of data flows of the aggregated LSP.

Abstract: A method of MPLS network traffic switching is provided herein. The method includes these steps: receiving a message indicative of creating a new LSP successfully, and generating a new uplink forwarding entry and a new downlink forwarding entry according to the message; storing the new uplink forwarding entry, and configuring the new downlink forwarding entry; configuring the new uplink forwarding entry upon completion of configuring the new downlink forwarding entry; and forwarding the traffic according to the new uplink forwarding entry and the new downlink forwarding entry. By ensuring the sequence of processing the events in the traffic switching process, the method reduces the probability of traffic interruption in the traffic switching process. A network node device for implementing MPLS network traffic switching is also provided herein.

Abstract: A method of MPLS network traffic switching is provided herein. The method includes these steps: receiving a message indicative of creating a new LSP successfully, and generating a new uplink forwarding entry and a new downlink forwarding entry according to the message; storing the new uplink forwarding entry, and configuring the new downlink forwarding entry; configuring the new uplink forwarding entry upon completion of configuring the new downlink forwarding entry; and forwarding the traffic according to the new uplink forwarding entry and the new downlink forwarding entry. By ensuring the sequence of processing the events in the traffic switching process, the method reduces the probability of traffic interruption in the traffic switching process. A network node device for implementing MPLS network traffic switching is also provided herein.

Abstract: A method for establishing tunnels includes establishing a first unidirectional tunnel from a first node to a second node, and sending a first instruction for establishing a reverse tunnel of the first tunnel, when sending the first instruction to the second node, triggering the establishment of a second unidirectional tunnel from the second node to the first node, and binding the second tunnel to the first tunnel as the reverse tunnel of the first tunnel. A system for establishing tunnels is also provided. The establishment of a reverse tunnel may be automatically triggered after a forward tunnel is established, and a bidirectional tunnel is established.

Abstract: A method of MPLS network traffic switching is provided herein. The method includes these steps: receiving a message indicative of creating a new LSP successfully, and generating a new uplink forwarding entry and a new downlink forwarding entry according to the message; storing the new uplink forwarding entry, and configuring the new downlink forwarding entry; configuring the new uplink forwarding entry upon completion of configuring the new downlink forwarding entry; and forwarding the traffic according to the new uplink forwarding entry and the new downlink forwarding entry. By ensuring the sequence of processing the events in the traffic switching process, the method reduces the probability of traffic interruption in the traffic switching process. A network node device for implementing MPLS network traffic switching is also provided herein.

Abstract: A method for fast rerouting, wherein, in a router, a fast rerouting flag and bypass path information is set for forward information corresponding to a label switch path of an incoming interface board, the method including: receiving a packet, by an incoming interface of the router, determining whether the fast rerouting flag, set for the forward information corresponding to the packet, is valid; if the fast rerouting flag is invalid, forwarding the packet according to the forward information corresponding to the packet; if the fast rerouting flag is valid, forwarding the packet according to the bypass path information set for the forward information which the packet corresponds to. Thus, not only the problem of inter-board transparent transmission can be avoided, which is introduced when the NHLFE of the outgoing-interface board being extended to realize fast rerouting, but also the fast rerouting after the interface board being plugged out can be realized.

Abstract: A method for implementing DS-TE in MPLS network is disclosed. The method includes carrying Quality of Service (QoS) parameters relating to resource allocation in a path message when establishing an LSP; reserving bandwidth resource for service traffic according to the QoS parameters; using the reserved bandwidth to forward service traffic after the LSP is established. A system for implementing DE-TE in the MPLS network is also disclosed. The system includes an Ingress LSR, a relay LSR and a Egress LSR. The Ingress LSR or the relay LSR carry QoS parameters relating to the resource allocation in the path message for establishing LSR. The relay LSR reserves bandwidth resource for service traffic based on the QoS parameters and forwards the service traffic based on the reserved bandwidth when receiving the service traffic, after the LSP is established. An LSR is further disclosed according to the present invention.

Abstract: A method for fast rerouting, wherein, in a router, a fast rerouting flag and bypass path information is set for forward information corresponding to a label switch path of an incoming interface board, the method including: receiving a packet, by an incoming interface of the router, determining whether the fast rerouting flag, set for the forward information corresponding to the packet, is valid; if the fast rerouting flag is invalid, forwarding the packet according to the forward information corresponding to the packet; if the fast rerouting flag is valid, forwarding the packet according to the bypass path information set for the forward information which the packet corresponds to. Thus, not only the problem of inter-board transparent transmission can be avoided, which is introduced when the NHLFE of the outgoing-interface board being extended to realize fast rerouting, but also the fast rerouting after the interface board being plugged out can be realized.