Transmitting residence time information in a network
AssigneeTelefonaktiebolaget L M Ericsson (publ)
InventorsStefano RUFFINI, Eric Ward GRAY, Sriganesh KINI, Gregory Mirsky
Life of this patent
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Abstract
A method of operation of a Multiprotocol Label Switching network involves, in an active node of the network, receiving a first data packet from a source node and forwarding the first data packet to a destination node. At the same time, the active node measures a residence time of the first data packet in the active node. The active node then sends a further data packet containing residence time information.
Claims28
A method of operation of a Multiprotocol Label Switching network, the method comprising, in an active node of the network:
- receiving a first data packet from a source node;
- forwarding the first data packet to a destination node;
- measuring a residence time of the first data packet in the active node;
- and
- sending a further data packet containing residence time information.
A method of operation of a Multiprotocol Label Switching network, the Multiprotocol Label Switching network comprising a plurality of Label Switching Router nodes including a plurality of Label switching Edge Router nodes, the method comprising:
- transmitting a Sync data packet across the Multiprotocol Label Switching network from an ingress Label switching Edge Router to an egress Label switching Edge Router;
- transmitting a Follow_up data packet across the Multiprotocol Label Switching network from the ingress Label switching Edge Router to the egress Label switching Edge Router;
- measuring a residence time of the Sync data packet at each Label Switching Router node transited by the Sync data packet;
- and
- including updated residence time information, derived from the measured residence times, when transmitting the Follow_up data packet from each Label Switching Router node transited by the Sync data packet.
A Multiprotocol Label Switching, MPLS, network node, being configured for:
- receiving a first data packet from a source node;
- forwarding the first data packet to a destination node;
- measuring a residence time of the first data packet in the active node;
- and
- sending a further data packet containing residence time information.
A Multiprotocol Label Switching, MPLS, network node, comprising:
- a processor;
- and
- a memory, said memory containing instructions executable by said processor to configure the node to:
- receive a first data packet from a source node;
- forward the first data packet to a destination node;
- measure a residence time of the first data packet in the active node;
- and
- send a further data packet containing residence time information.
Dependencies are inferred from the claim text.