Patent application number | Description | Published |
20090201932 | METHOD AND SYSTEM FOR IMPLEMENTING MPLS NETWORK DIFFSERV TRAFFIC ENGINEERING - 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. According to the method, system and LSR of the present invention, bandwidth resources can be allocated based on different service class and thus granularity for the DiffServ traffic engineering is further refined. | 08-13-2009 |
20100054265 | METHOD AND DEVICE OF MPLS NETWORK TRAFFIC SWITCHING - 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. | 03-04-2010 |
20110038380 | Method and System for Establishing Tunnels - 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. | 02-17-2011 |
20120163387 | METHOD AND DEVICE OF MPLS NETWORK TRAFFIC SWITCHING - 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. | 06-28-2012 |
20120230184 | Signaling Extension for a Label Switched Path Over a Composite Link - 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. | 09-13-2012 |
20150085638 | MULTIPROTOCOL LABEL SWITCHING TRAFFIC ENGINEERING TUNNEL ESTABLISHING METHOD AND DEVICE - Embodiments of the present invention provide a Multiprotocol Label Switching traffic engineering tunnel establishing method and device. A tunnel establishing method includes: receiving, by a second routing device, an identifier, which is sent by a first routing device, of an MPLS TE tunnel from a first VPN instance to a second VPN instance; acquiring, by the second routing device according to the identifier, path information of the MPLS TE tunnel from the first VPN instance to the second VPN instance; and establishing an MPLS TE tunnel from the second VPN instance to the first VPN instance according to the acquired path information. Therefore, forward and reverse bidirectional tunnels are co-routed or partially co-routed, thereby solving a problem caused by non-co-routing during BFD. | 03-26-2015 |
Patent application number | Description | Published |
20130329726 | Method and System for Establishing Tunnels - 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. | 12-12-2013 |
20140219135 | Virtual Private Network Implementation Method and System Based on Traffic Engineering Tunnel - Embodiments of the present invention provide a virtual private network implementation method and system based on a traffic engineering tunnel. The virtual private network implementation method based on a traffic engineering tunnel includes: establishing a traffic engineering tunnel in response to establishment information about a virtual private network service; bearing the virtual private network service using the traffic engineering tunnel; and deleting the traffic engineering tunnel in response to cancellation information about the virtual private network service. In the foregoing manner, a traffic engineering tunnel is dynamically established or deleted according to a requirement of a virtual private network service, a mechanism for establishing a TE tunnel as required is provided, and the tunnel not used by the virtual private network service is deleted in time, thereby effectively saving network resources. | 08-07-2014 |
20140362846 | METHOD AND DEVICE FOR DETERMINING TO ESTABLISH MULTI-PROTOCOL LABEL SWITCHING TRAFFIC ENGINEERING TUNNEL - A method for determining to establish a multi-protocol label switching traffic engineering tunnel. A first PE receives an IGP notification message including information of a Mesh Group to which a second PE belongs and role information of the second PE released by the second PE. Then, it determines, according to information of Mesh Groups to which the two belong, whether the two belong to a same Mesh Group. After determining that the two belong to the same Mesh Group, the first PE determines, according to role information of the two, whether to establish the MPLS TE tunnel to the second PE. | 12-11-2014 |