13 results about "Multiprotocol Label Switching" patented technology

Various example embodiments for supporting an in-band control plane are presented. Various example embodiments for supporting an in-band control plane may be configured to support an in-band control plane in a Multiprotocol Label Switching (MPLS) network. Various example embodiments for supporting an in-band control plane in an MPLS network may be configured to support an in-band control plane in an MPLS network by supporting exchange of control protocol packets of control protocols as MPLS packets, such that the control protocol messaging is in-band along the MPLS data plane itself. Various example embodiments for supporting an in-band control plane in an MPLS network may be configured to support an in-band control plane in an MPLS network by supporting communication of MPLS packets that encapsulate control protocol messages of control protocols with an MPLS label which indicates that the payloads of the MPLS packets carry the control protocol messages of the control protocols.

The application provides a message processing method and device and network equipment, and relates to the fields of transmission and IP. The method comprises the following steps: acquiring an end-to-end deployment path; if the end-to-end deployment path of the G-SRv6 network comprises a multiprotocol label switching (MPLS) network node, then the MPLS label of the MPLS network node is encapsulated in a G-SRv6 message. The scheme of the application solves the problem that, in the prior art, it is difficult to form an end-to-end path planning because the G-SRv6 is difficult to pass through an MPLS network.

Different services through Virtual Routing and Forwarding instances (VRFs) are identified without needing a Multiprotocol Label Switching (MPLS) label or a Virtual Extensible Local Area Network (VXLAN) Network Identifier (VNI) by using, for example, different UDP port numbers to identify different connectivity services (e.g., customers, VRFs) when IP-in-IP (also referred to as IP over UDP) is used as a tunneling mechanism (e.g., in the data center).

Described herein are methods and devices (e.g., routers) that add network services to a multiprotocol label switching (MPLS) network. A method can include a network device of the MPLS network receiving a packet, the network device of the MPLS network modifying the packet by adding multiple MPLS extension headers, wherein each of the multiple MPLS extension headers added to the packet is used to support a different one of multiple network services for the MPLS network, and the network device of the MPLS network forwarding the packet as modified to another network device of the MPLS network.

A first network device of a first data center may encode a source tenant system interface (TSI) group identifier into a tag protocol identifier and a group-based policy identifier, and may encode the tag protocol identifier and the group-based policy identifier into a virtual extensible local area network (VXLAN) packet with the source TSI group identifier, where the source TSI group identifier is not included in a header of the VXLAN packet. The first network device may provide the VXLAN packet, with the source TSI group identifier, to a second network device of a second data center, via an Ethernet virtual private network (EVPN) multiprotocol label switching (MPLS) network.

Generally disclosed herein is an approach for modifying use of segment routing multiprotocol label switching (SR-MPLS) allowing an arbitrary MPLS control plane and traditional MPLS data plane to utilize a single MPLS label to represent two or more edges in a path. MPLS labels may be divided into smaller sub-labels, which together uniquely represent a pair of edges along a route. In one example, a single MPLS label may be divided into two sub-labels, the first sub-label representing a first edge, and the second sub-label representing a second edge. In this regard, longer source routes may be supported in a packet header in network designs that implement strict source routing.

This application provides a method and apparatus for forwarding packets, relating to the field of communication technology. The method is applied to an ingress PE node and includes: receiving a first Internet Protocol (IP) packet, the first IP packet supporting Explicit Congestion Notification (ECN); determining a first Multiprotocol Label Switching (MPLS) packet based on the first IP packet, the first MPLS Network Action (MNA) in the first MPLS packet including a first ECN field; and forwarding the first MPLS packet. The method in this application embodiment can avoid conflicts between MPLS packets carrying ECN tags and the DiffServ domain space.

Various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols at various communication layers. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating above Layer 2 using a Layer 2 network security protocol. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating at Layer 2.5 (e.g., Multiprotocol Label Switching (MPLS) protocols or other Layer 2.5 protocols) using a Layer 2 network security protocol. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating at Layer 3 (e.g., Internet Protocol (IP), such as IP version 4 (IPv4) or IP version 6 (IPv6), or other Layer 3 protocols) using a Layer 2 network security protocol.

Systems and methods are provided for receiving bandwidth metrics from a plurality of routers on respective link routes in a network, compiling a link database including the bandwidth metrics of each respective link route in the network, selecting a first designated link path from the link database between a first router and a second router based on an application routing policy, the application routing policy being based on a routing metric, providing a first multiprotocol label switching label based on the first designated link path to the first router of the plurality of routers in the network, and restricting network traffic of the first router to the first designated link path provided in the first multiprotocol label switching label.

Systems and methods are provided for receiving bandwidth metrics from a plurality of routers on respective link routes in a network, compiling a link database including the bandwidth metrics of each respective link route in the network, selecting a first designated link path from the link database between a first router and a second router based on an application routing policy, the application routing policy being based on a routing metric, providing a first multiprotocol label switching label based on the first designated link path to the first router of the plurality of routers in the network, and restricting network traffic of the first router to the first designated link path provided in the first multiprotocol label switching label.

Various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols at various communication layers. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating above Layer 2 using a Layer 2 network security protocol. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating at Layer 2.5 (e.g., Multiprotocol Label Switching (MPLS) protocols or other Layer 2.5 protocols) using a Layer 2 network security protocol. For example, various example embodiments for supporting security for communications may be configured to support security for communications of communication protocols operating at Layer 3 (e.g., Internet Protocol (IP), such as IP version 4 (IPv4) or IP version 6 (IPv6), or other Layer 3 protocols) using a Layer 2 network security protocol.