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公开(公告)号：US20230246967A1
公开(公告)日：2023-08-03
申请号：US18297599
申请日：2023-04-07
Applicant: Cisco Technology, Inc.
IPC: H04L47/125 , H04L47/70 , H04L47/17 , H04L45/50
CPC classification number: H04L47/125 , H04L47/825 , H04L47/17 , H04L45/507
Abstract: In one embodiment, an offload platform is an compute platform, adjunct to a router or other packet switching device, that performs packet processing operations including determining an egress forwarding value corresponding to the next-hop node of the packet switching device to which to send an offload-platform processed packet. The offload platform downloads forwarding information from the router, and augments it, such as, but not limited to, representing interfaces of the router as identifiable virtual interface(s) on the offload platform, and including each of one or more next-hop nodes of the router represented as an identifiable virtual adjacency and identifiable tunnel (e.g., identified by the egress forwarding value). In one embodiment, the egress forwarding value is an Multiprotocol Label Switching (MPLS) label or Segment Routing Identifier. The router identifies packets of certain packet flows to send to the adjunct offload platform, rather than processing per its routing information base.
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公开(公告)号：US11924108B2
公开(公告)日：2024-03-05
申请号：US18360342
申请日：2023-07-27
Applicant: Cisco Technology, Inc.
IPC: H04L12/26 , H04L45/50 , H04L47/125 , H04L47/17 , H04L47/70
CPC classification number: H04L47/125 , H04L45/507 , H04L47/17 , H04L47/825
Abstract: In one embodiment, an offload platform is an compute platform, adjunct to a router or other packet switching device, that performs packet processing operations including determining an egress forwarding value corresponding to the next-hop node of the packet switching device to which to send an offload-platform processed packet. The offload platform downloads forwarding information from the router, and augments it, such as, but not limited to, representing interfaces of the router as identifiable virtual interface(s) on the offload platform, and including each of one or more next-hop nodes of the router represented as an identifiable virtual adjacency and identifiable tunnel (e.g., identified by the egress forwarding value). In one embodiment, the egress forwarding value is an Multiprotocol Label Switching (MPLS) label or Segment Routing Identifier. The router identifies packets of certain packet flows to send to the adjunct offload platform, rather than processing per its routing information base.
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公开(公告)号：US20230370382A1
公开(公告)日：2023-11-16
申请号：US18360342
申请日：2023-07-27
Applicant: Cisco Technology, Inc.
IPC: H04L47/125 , H04L45/50 , H04L47/17 , H04L47/70
CPC classification number: H04L47/125 , H04L45/507 , H04L47/17 , H04L47/825
Abstract: In one embodiment, an offload platform is an compute platform, adjunct to a router or other packet switching device, that performs packet processing operations including determining an egress forwarding value corresponding to the next-hop node of the packet switching device to which to send an offload-platform processed packet. The offload platform downloads forwarding information from the router, and augments it, such as, but not limited to, representing interfaces of the router as identifiable virtual interface(s) on the offload platform, and including each of one or more next-hop nodes of the router represented as an identifiable virtual adjacency and identifiable tunnel (e.g., identified by the egress forwarding value). In one embodiment, the egress forwarding value is an Multiprotocol Label Switching (MPLS) label or Segment Routing Identifier. The router identifies packets of certain packet flows to send to the adjunct offload platform, rather than processing per its routing information base.
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公开(公告)号：US10715439B2
公开(公告)日：2020-07-14
申请号：US16541931
申请日：2019-08-15
Applicant: Cisco Technology, Inc.
Inventor： Naader Hasani , Shishir Gupta , David Delano Ward , Mohammed Ismael Tatar , Shahin Habibi , Sreedhar Ravipalli , David Richard Barach
IPC: H04L12/743 , H04L12/745
Abstract: One embodiment performs longest prefix matching operations in one or more different manners that provides packet processing and/or memory efficiencies in the processing of packets. In one embodiment, a packet switching device determines a set of one or more mask lengths of a particular conforming entry of a multibit trie or other data structure that matches a particular address of a packet via a lookup operation in a mask length data structure. A conforming entry refers to an entry which has less than or equal to a maximum number of different prefix lengths, with this maximum number corresponding to the maximum number of prefix lengths which can be searched in parallel in the address space for a longest matching prefix by the implementing hardware. The packet switching device then performs corresponding hash table lookup operation(s) in parallel in determining an overall longest matching prefix for the particular address.
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公开(公告)号：US10521273B2
公开(公告)日：2019-12-31
申请号：US15617190
申请日：2017-06-08
Applicant: Cisco Technology, Inc.
Inventor： Sape Mullender , David Richard Barach , Jim McKie , Peter Bosch
IPC: G06F9/50 , G06F3/06 , G06F9/4401 , G06F9/455
Abstract: A baseboard management controller (BMC) can physically partition the computing resources of a physical host into different resource groups for concurrently running a different operating system per resource group. The BMC can allocate a first processor of the host to a first resource group and a second processor of the host to a second resource group. The BMC can separate the memory of the host into a first memory range for the first processor and a second memory range for the second processor, and the BMC can limit access to the first memory range to the first processor and limit access to the second memory range to the second processor. The BMC can also distribute physical or virtual peripheral devices of the host between the first processor and the second processor.
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Patent Agency Ranking
公开(公告)号：US20220368636A1
公开(公告)日：2022-11-17
申请号：US17814803
申请日：2022-07-25
Applicant: Cisco Technology, Inc.
IPC: H04L47/125 , H04L47/70 , H04L47/17 , H04L45/50
Abstract: In one embodiment, an offload platform is an compute platform, adjunct to a router or other packet switching device, that performs packet processing operations including determining an egress forwarding value corresponding to the next-hop node of the packet switching device to which to send an offload-platform processed packet. The offload platform downloads forwarding information from the router, and augments it, such as, but not limited to, representing interfaces of the router as identifiable virtual interface(s) on the offload platform, and including each of one or more next-hop nodes of the router represented as an identifiable virtual adjacency and identifiable tunnel (e.g., identified by the egress forwarding value). In one embodiment, the egress forwarding value is an Multiprotocol Label Switching (MPLS) label or Segment Routing Identifier. The router identifies packets of certain packet flows to send to the adjunct offload platform, rather than processing per its routing information base.
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公开(公告)号：US09509614B2
公开(公告)日：2016-11-29
申请号：US13923257
申请日：2013-06-20
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Hendrikus G. P. Bosch , David Richard Barach , Michael E. Lipman , Alessandro Duminuco , James N. Guichard , Humberto J. La Roche
IPC: H04L12/803
CPC classification number: H04L47/125
Abstract: An example method for load balancing in a network environment is provided and includes receiving a packet from a first stage load-balancer in a network environment, where the packet is forwarded from the first stage load-balancer to one of a plurality of second stage load-balancers in the network according to a hash based forwarding scheme, and routing the packet from the second stage load-balancer to one of a plurality of servers in the network according to a per-session routing scheme. The per-session routing scheme includes retrieving a session routing state from a distributed hash table in the network. In a specific embodiment, the hash based forwarding scheme includes equal cost multi path routing. The session routing state can include an association between a next hop for the packet and the packet's 5-tuple representing a session to which the packet belongs.
Abstract translation: 提供了一种用于在网络环境中进行负载平衡的示例性方法，并且包括在网络环境中从第一级负载平衡器接收分组，其中分组从第一级负载平衡器转发到多个第二级负载 根据基于散列的转发方案的网络中的平衡器，并且根据每会话路由方案将分组从第二阶段负载平衡器路由到网络中的多个服务器之一。 每会话路由方案包括从网络中的分布式哈希表检索会话路由状态。 在具体实施例中，基于散列的转发方案包括相同成本的多路径路由。 会话路由状态可以包括分组的下一跳与分组所属的会话的分组的5元组之间的关联。
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公开(公告)号：US11627086B2
公开(公告)日：2023-04-11
申请号：US17814803
申请日：2022-07-25
Applicant: Cisco Technology, Inc.
IPC: H04L12/26 , H04L47/125 , H04L47/70 , H04L47/17 , H04L45/50
Abstract: In one embodiment, an offload platform is an compute platform, adjunct to a router or other packet switching device, that performs packet processing operations including determining an egress forwarding value corresponding to the next-hop node of the packet switching device to which to send an offload-platform processed packet. The offload platform downloads forwarding information from the router, and augments it, such as, but not limited to, representing interfaces of the router as identifiable virtual interface(s) on the offload platform, and including each of one or more next-hop nodes of the router represented as an identifiable virtual adjacency and identifiable tunnel (e.g., identified by the egress forwarding value). In one embodiment, the egress forwarding value is an Multiprotocol Label Switching (MPLS) label or Segment Routing Identifier. The router identifies packets of certain packet flows to send to the adjunct offload platform, rather than processing per its routing information base.
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9.发明申请公开(公告)号：US20190372896A1
公开(公告)日：2019-12-05
申请号：US16541931
申请日：2019-08-15
Applicant: Cisco Technology, Inc.
Inventor： Naader Hasani , Shishir Gupta , David Delano Ward , Mohammed Ismael Tatar , Shahin Habibi , Sreedhar Ravipalli , David Richard Barach
IPC: H04L12/743 , H04L12/745
Abstract: One embodiment performs longest prefix matching operations in one or more different manners that provides packet processing and/or memory efficiencies in the processing of packets. In one embodiment, a packet switching device determines a set of one or more mask lengths of a particular conforming entry of a multibit trie or other data structure that matches a particular address of a packet via a lookup operation in a mask length data structure. A conforming entry refers to an entry which has less than or equal to a maximum number of different prefix lengths, with this maximum number corresponding to the maximum number of prefix lengths which can be searched in parallel in the address space for a longest matching prefix by the implementing hardware. The packet switching device then performs corresponding hash table lookup operation(s) in parallel in determining an overall longest matching prefix for the particular address.
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10.发明授权公开(公告)号：US10397115B1
公开(公告)日：2019-08-27
申请号：US15949060
申请日：2018-04-09
Applicant: Cisco Technology, Inc.
Inventor： Naader Hasani , Shishir Gupta , David Delano Ward , Mohammed Ismael Tatar , Shahin Habibi , Sreedhar Ravipalli , David Richard Barach
IPC: H04L12/743 , H04L12/745
Abstract: One embodiment performs longest prefix matching operations in one or more different manners that provides packet processing and/or memory efficiencies in the processing of packets. In one embodiment, a packet switching device determines a set of one or more mask lengths of a particular conforming entry of a multibit trie or other data structure that matches a particular address of a packet via a lookup operation in a mask length data structure. A conforming entry refers to an entry which has less than or equal to a maximum number of different prefix lengths, with this maximum number corresponding to the maximum number of prefix lengths which can be searched in parallel in the address space for a longest matching prefix by the implementing hardware. The packet switching device then performs corresponding hash table lookup operation(s) in parallel in determining an overall longest matching prefix for the particular address.
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