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公开(公告)号：US11991012B2
公开(公告)日：2024-05-21
申请号：US17241464
申请日：2021-04-27
发明人： Jingrong Xie , Yang Xia
IPC分类号： H04L12/741 , H04L12/18 , H04L12/46 , H04L45/74 , H04L67/56
CPC分类号： H04L12/18 , H04L12/4633 , H04L12/4641 , H04L45/74 , H04L67/56
摘要： A packet forwarding method. The method includes: a first node configures a first identifier of a first VPN and a first IPv6 address on a control plane. The first node sends a first indication message to a second node, where the first indication message carries the first identifier and the first IPv6 address. The second node first determines, based on locally configured information about the first VPN and the first identifier in the first indication message, a second identifier that is of the second node and that satisfies a preset correspondence with the first identifier, and then establishes a correspondence between the first IPv6 address and the second identifier. The first node encapsulates, on a forwarding plane based on the first IPv6 address, a multicast data packet belonging to the first VPN, to obtain a to-be-forwarded BIER packet and sends the to-be-forwarded BIER packet.
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公开(公告)号：US11972306B2
公开(公告)日：2024-04-30
申请号：US17530163
申请日：2021-11-18
申请人： Arrcus Inc.
发明人： Neeraj Malhotra , Keyur Patel , Derek Man-Kit Yeung , Nalinaksh Pai , Kalyani Rajaraman , Vikram Ragukumar
IPC分类号： H04L12/701 , G06F9/455 , G06F9/48 , G06F9/54 , G06F16/22 , G06F16/23 , G06F16/27 , H04L9/40 , H04L12/28 , H04L12/44 , H04L12/46 , H04L12/66 , H04L12/721 , H04L12/741 , H04L12/753 , H04L45/00 , H04L45/02 , H04L45/24 , H04L45/28 , H04L45/48 , H04L45/50 , H04L45/586 , H04L45/745 , H04L47/125 , H04L67/1097 , H04L67/55 , H04L49/25
CPC分类号： G06F9/542 , G06F9/45558 , G06F9/4881 , G06F9/54 , G06F16/2272 , G06F16/2379 , G06F16/27 , G06F16/278 , H04L12/2881 , H04L12/44 , H04L12/462 , H04L12/4633 , H04L12/4641 , H04L12/66 , H04L45/02 , H04L45/22 , H04L45/24 , H04L45/26 , H04L45/28 , H04L45/48 , H04L45/50 , H04L45/586 , H04L45/66 , H04L45/745 , H04L47/125 , H04L63/0272 , H04L67/1097 , H04L67/55 , G06F2009/45595 , H04L2012/4629 , H04L49/25
摘要： Systems, methods, and devices for improved routing operations in a network computing environment. A system includes a network topology comprising a spine node and a plurality of leaf nodes. The system is such that at least one of the plurality of leaf nodes is associated with one or more networking prefixes. The spine node stores a prefix table. The prefix table includes a listing of networking prefixes in the network topology. The prefix table includes an indication of at least one equal-cost multipath routing (ECMP) group associated with each of the networking prefixes in the network topology. The prefix table includes an indication of at least one leaf node of the plurality of leaf nodes associated with each of the networking prefixes in the network topology.
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公开(公告)号：US11902160B2
公开(公告)日：2024-02-13
申请号：US17452309
申请日：2021-10-26
IPC分类号： H04L12/741 , H04L45/745 , H04L12/46 , H04L49/25
CPC分类号： H04L45/745 , H04L12/4633 , H04L12/4641 , H04L49/25
摘要： Techniques for EVPN Host Routed Bridging (HRB) and EVPN cloud-native data center with Host Routed Bridging (HRB) are described. A host computing device of a data center includes one or more containerized user-level applications. A cloud native virtual router is configured for dynamic deployment by the data center application orchestration engine and operable in a user space of the host computing device. Processing circuitry is configured for execution of the containerized user-level applications and the cloud native virtual router. The cloud native virtual router comprises a containerized routing protocol process configured to operate as a control plane, and a data plane for the containerized router. The data plane is configured to operate an ethernet virtual private network (EVPN) encapsulation/decapsulation data path of an overlay network for communicating layer two (L2) network traffic of the containerized user applications over a switch fabric of the data center.
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公开(公告)号：US11888722B2
公开(公告)日：2024-01-30
申请号：US17367003
申请日：2021-07-02
发明人： Jingjing Zhao
IPC分类号： H04L12/751 , H04L12/741 , H04L45/02 , H04L45/74
摘要： A route advertisement method is applied to a network in which a cross-domain end-to-end tunnel carries a service. The cross-domain end-to-end tunnel crosses at least two Interior Gateway Protocol (IGP) network domains, and the at least two IGP network domains include a first network device, a second network device, and a third network device. The route advertisement method includes receiving, by the first network device, Border Gateway Protocol (BGP) service routing information from the second network device, where the BGP service routing information includes a destination address and a next-hop address to the destination address, skipping, by the first network device, performing route recursion on the next-hop address, and advertising, by the first network device, the BGP service routing information to the third network device.
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公开(公告)号：US11722455B2
公开(公告)日：2023-08-08
申请号：US16725636
申请日：2019-12-23
申请人： Pure Storage, Inc.
发明人： Jayesh Patel , Prabhath Sajeepa , Daniel Talayco
IPC分类号： H04L12/28 , H04L12/54 , H04L12/721 , H04L12/741 , H04L29/12 , H04L61/103 , H04L45/741 , H04L67/1097 , H04L67/1001 , H04L101/622
CPC分类号： H04L61/103 , H04L45/741 , H04L67/1001 , H04L67/1097 , H04L2101/622
摘要： A method of address resolution broadcasting in a networked device is provided. The method includes receiving, at a switch fabric of the networked device, an address resolution request from one of a plurality of nodes of the networked device and substituting, as a source address, a cluster MAC address for a MAC address of the one of the plurality of nodes in the address resolution request. The method includes sending the address resolution request over a network and receiving, at the switch fabric, an address resolution reply over the network. The method includes substituting, as a destination address, an address for transmission to each of the plurality of nodes for the cluster MAC address in the address resolution reply, and transmitting the address resolution reply to the plurality of nodes.
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公开(公告)号：US11716283B2
公开(公告)日：2023-08-01
申请号：US17193350
申请日：2021-03-05
IPC分类号： H04L12/741 , H04L45/74 , H04L12/46
CPC分类号： H04L45/74 , H04L12/4641
摘要： Methods, systems, and computer readable media for selecting a software defined wide area network (SD-WAN) link using network slice information are disclosed. One method occurs at an SD-WAN controller implemented using at least one processor, the method comprises: receiving a packet containing packet header information including at least one internet protocol (IP) address; determining, using the packet header information, a link selection rule for selecting an SD-WAN link for transmission, wherein the link selection rule uses transmission characteristics associated with the packet, wherein the transmission characteristics are discerned using network slice information associated with the packet; selecting, using the link selection rule, the SD-WAN link; and transmitting the packet via the SD-WAN link.
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公开(公告)号：US11671365B2
公开(公告)日：2023-06-06
申请号：US17093315
申请日：2020-11-09
IPC分类号： H04L12/745 , H04L12/741 , H04L12/725 , H04L12/46 , H04L12/713 , H04L12/931 , H04L12/721 , H04L45/748 , H04L45/00 , H04L45/302 , H04L45/586 , H04L49/354
CPC分类号： H04L45/748 , H04L12/4633 , H04L12/4641 , H04L45/306 , H04L45/38 , H04L45/54 , H04L45/586 , H04L49/354
摘要： Route tables may be associated with ingress traffic for logically isolated networks. A routing device at the edge of a logically isolated network may receive a route to include in a route table that is associated with ingress traffic to the logically isolated network to forward the ingress traffic to a network appliance hosted in the logically isolated network. Network packets received at the edge routing device may have a destination of a computing resource hosted in the logically isolated network. The edge routing device may identify the route in the route table to override the destination in the network packet with the network appliance and forward the network packet to the network appliance according to the route.
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公开(公告)号：US20230146525A1
公开(公告)日：2023-05-11
申请号：US17450147
申请日：2021-10-06
发明人： Darrell Ball
IPC分类号： H04L12/741 , H04L12/721
CPC分类号： H04L45/745 , H04L45/38
摘要： Techniques are disclosed for providing automatic policy configuration for packet flows. For example, a computing device comprises a virtual node and one or more virtual execution elements coupled to the virtual node. The computing device may also comprise one or more processors configured to: receive a packet originating from an application workload hosted on the one or more virtual execution elements and destined for a remote destination device; determine the packet is part of a new packet flow; in response, configure, by a kernel of the computing device and without sending the packet to a user space of the computing device, a policy for a forward packet flow for the new packet flow; configure, by the kernel, a policy for a reverse packet flow associated with the forward packet flow; and send the packet toward the remote destination device in accordance with the policy for the forward packet flow.
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公开(公告)号：US11641336B2
公开(公告)日：2023-05-02
申请号：US16888577
申请日：2020-05-29
申请人： DELL PRODUCTS L.P.
IPC分类号： H04L29/08 , H04L12/46 , H04L12/44 , H04L12/715 , H04L12/741 , H04L12/721 , H04L12/28 , H04L61/10
摘要： Described herein are systems and methods for host multihoming with no state synchronization between top-of-rack (ToR) switches coupled to multiple hosts. ToR switches of a multi-homing system share a virtual MAC address and respond to Address Resolution Protocol (ARP) requests and/or Neighbor Discovery (ND) solicitations for a default gateway IP address from the host with the virtual MAC address. Ports on a ToR switch may be configured either with a static ARP and/or ND entry, or be configured to learn via a discovery protocol. The lightweight host multihoming system may have modified flooding behavior, ARP/ND handling, and data path forwarding. ARP/ND traffic from a host is processed by a ToR switch, while other multicast traffic may be discarded. Embodiments of the host multihoming system provide a lightweight solution for software implementation with minimal changes imposed on the host or network design.
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公开(公告)号：US20230091393A1
公开(公告)日：2023-03-23
申请号：US17448117
申请日：2021-09-20
发明人： Kiran KUSHALAD , Rajendra Prasad BOLLAM , Rajesh Shetty MANUR , Salih K A , Shraddha HEGDE , Sri Karthik Goud GADELA , Swamy Sadashivaiah KANANDA
IPC分类号： H04L12/751 , H04L12/741 , H04L12/733
摘要： A first network device may receive an advertisement that includes a prefix for a second network device, wherein the advertisement is destined for a third network device. The first network device may determine, based on a network topology, whether a next hop is one hop away or multiple hops away. The first network device may selectively modify the advertisement to include a first segment identifier, based on the next hop being one hop away and to generate a first modified advertisement, or may modify the advertisement to include a second segment identifier, based on the next hop being multiple hops away and to generate a second modified advertisement. The first network device may forward the first modified advertisement or the second modified advertisement toward the third network device.
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