Traffic Processing Method, Apparatus, and Network Device

    公开(公告)号:US20230239242A1

    公开(公告)日:2023-07-27

    申请号:US18188016

    申请日:2023-03-22

    摘要: A network device obtains Border Gateway Protocol (BGP) flow specification (FlowSpec) information, and generates, based on the BGP FlowSpec information, a first forwarding information base (FIB) table entry including a first prefix and an action, where the BGP FlowSpec information indicates to perform an action on traffic matching a filter condition, where the filter condition includes an attribute of a destination address, where the first FIB table entry indicates the network device to perform the action on the traffic matching the first prefix, and where an attribute of the first prefix is the same as the attribute of the destination address in the filter condition.

    CONDITIONAL ROUTING DELIVERY IN A COMPROMISED NETWORK

    公开(公告)号:US20230231798A1

    公开(公告)日:2023-07-20

    申请号:US18188897

    申请日:2023-03-23

    IPC分类号: H04L45/00 H04L45/302

    CPC分类号: H04L45/22 H04L45/302

    摘要: A computer-implemented method for processing a data packet in a network node includes determining a level of deterioration of a primary path between the network node and the destination node. The determined level of deterioration is based at least on a non-congestion-related loss for a primary link associated with one or more subsequent hops of the data packet from the network node toward the destination node along the primary path. Based on the determined level of deterioration of the primary path being above a threshold, the primary path is changed to an alternate path from the network node to the destination node. The data packet is forwarded to a next network node on the alternate path.

    Stateless multicasting over traffic engineered unicast tunnels

    公开(公告)号:US11706136B2

    公开(公告)日:2023-07-18

    申请号:US17702285

    申请日:2022-03-23

    摘要: A software defined networking (SDN) controller or routers in a network determine unicast paths from an ingress router to egress routers from the network based on quality-of-service (QoS) metrics for links between routers of the network. A subset of the unicast paths is associated with a multicast flow based on one or more QoS criteria for the multicast flow. A router pushes a label stack onto a packet of the multicast flow. The label stack includes labels that identify the subset of the unicast paths. The packet including the label stack is multicast through the network to the egress routers. Routers that receive the multicast packet selectively modify the label stack in the packet based on the labels that identify the subset of the unicast paths. The routers selectively forward the packet based on the labels.