公开(公告)号：US20240184890A1

公开(公告)日：2024-06-06

申请号：US18239607

申请日：2023-08-29

申请人： Cisco Technology, Inc.

发明人： Sachin Agarwal ,  Srirajkumar Sundararaman ,  Aviran Kadosh ,  Samir Valjibhai Rajgor ,  Chirag Shroff ,  Kevin Shyh-Kang Chang ,  Dylan Walker

IPC分类号： G06F21/57 ,  G06F21/44

CPC分类号： G06F21/575 ,  G06F21/44

摘要： A method of operating a system-on-chip (SOC) including decrypting, by isolated Root of Trust (RoT) code, a Stock Keeping Unit (SKU) license code from a host during bootup of a device. Then validating, by the isolated RoT code, the SKU license code with firmware and at least one built-in key of a plurality of built-in keys from secure storage. Finally, enabling or disabling, by the isolated RoT code, at least one feature set of a plurality of feature sets comprising resources configured at the SOC based on at least one SKU license code which has been decrypted by isolated RoT code using at least one built-in key and authenticated by firmware.

公开(公告)号：US20240097949A1

公开(公告)日：2024-03-21

申请号：US18156841

申请日：2023-01-19

申请人： Cisco Technology, Inc.

发明人： Adee Ran ,  Mark A. Gustlin ,  Aviran Kadosh

IPC分类号： H04L25/14 ,  H04L25/02

CPC分类号： H04L25/14 ,  H04L25/0272

摘要： Symbol multiplexing Physical Medium Attachment (PMA) may be provided. A plurality of first lanes may be received and then Alignment Markers (AMs) from the plurality of first lanes may be used to determine symbol boundaries and identify the plurality of first lanes. Next, groups of the plurality of first lanes may be de-skewed and checkerboard patterns in the plurality of first lanes may be undone. Then the plurality of first lanes may be symbol-wise multiplexed to a plurality of second lanes. The plurality of second lanes may then be sent.

公开(公告)号：US11418214B1

公开(公告)日：2022-08-16

申请号：US17000762

申请日：2020-08-24

申请人： Cisco Technology, Inc.

发明人： Guy Caspary ,  Nadav Tsvi Chachmon ,  Aviran Kadosh

IPC分类号： H03M13/09 ,  H04L1/00 ,  H04L47/125 ,  H04L45/7453

摘要： A network element is configured to efficiently load balance packets through a computer network. The network element receives a packet associated with flow attributes and generates a Load Balancing Flow Vector (LBFV) from the flow attributes. The network element partitions the LBFV into a plurality of LBFV blocks and reorders the LBFV blocks to generate a reordered LBFV. The LBFV blocks are reordered based on a reordering sequence that is different from reordering sequences on other network elements in the computer network. The network element hashes the reordered LBFV to generate a hash key for the packet and selects a next hop link based on the hash key. The next hop link connects the network elements to a next hop network element in the computer network.

公开(公告)号：US11258710B2

公开(公告)日：2022-02-22

申请号：US16667091

申请日：2019-10-29

申请人： Cisco Technology, Inc.

发明人： Ofer Iny ,  Eyal Michel Dagan ,  Aviran Kadosh

IPC分类号： H04L12/803 ,  H04L47/125 ,  H04W28/06 ,  H04L47/283 ,  H04L47/34 ,  H04L47/31

摘要： In one embodiment, a load balancing method may comprise: assigning a plurality of packets of a flow to a plurality of segments according to a segmentation criterion, each segment including one or more packets of said plurality of packets, and at least one of the plurality of segments including more than one packet of the plurality of packets; tagging each packet of the plurality of packets with a segment sequence identifier to indicate to which segment the packet is assigned; and arranging the plurality of packets for transmission via an interconnect so that all packets belonging to a same segment will be transmitted via a same path.

公开(公告)号：US11811663B2

公开(公告)日：2023-11-07

申请号：US17576256

申请日：2022-01-14

申请人： Cisco Technology, Inc.

发明人： Ofer Iny ,  Eyal Michel Dagan ,  Aviran Kadosh

IPC分类号： H04L47/12 ,  H04L47/125 ,  H04W28/06 ,  H04L47/283 ,  H04L47/34 ,  H04L47/31

CPC分类号： H04L47/125 ,  H04L47/283 ,  H04L47/31 ,  H04L47/34 ,  H04W28/065

摘要： In one embodiment, a load balancing method may comprise: assigning a plurality of packets of a flow to a plurality of segments according to a segmentation criterion, each segment including one or more packets of said plurality of packets, and at least one of the plurality of segments including more than one packet of the plurality of packets; tagging each packet of the plurality of packets with a segment sequence identifier to indicate to which segment the packet is assigned; and arranging the plurality of packets for transmission via an interconnect so that all packets belonging to a same segment will be transmitted via a same path.

公开(公告)号：US20220399901A1

公开(公告)日：2022-12-15

申请号：US17859332

申请日：2022-07-07

申请人： Cisco Technology, Inc.

发明人： Guy Caspary ,  Nadav Tsvi Chachmon ,  Aviran Kadosh

IPC分类号： H03M13/09 ,  H04L45/7453 ,  H04L47/125 ,  H04L1/00

摘要： A network element is configured to efficiently load balance packets through a computer network. The network element receives a packet associated with flow attributes and generates a Load Balancing Flow Vector (LBFV) from the flow attributes. The network element partitions the LBFV into a plurality of LBFV blocks and reorders the LBFV blocks to generate a reordered LBFV. The LBFV blocks are reordered based on a reordering sequence that is different from reordering sequences on other network elements in the computer network. The network element hashes the reordered LBFV to generate a hash key for the packet and selects a next hop link based on the hash key. The next hop link connects the network elements to a next hop network element in the computer network.

公开(公告)号：US20220286401A1

公开(公告)日：2022-09-08

申请号：US17825316

申请日：2022-05-26

申请人： Cisco Technology, Inc.

发明人： Aviran Kadosh

IPC分类号： H04L47/2483 ,  H04L47/31 ,  H04L49/25 ,  H04L47/12 ,  H04L41/0803

摘要： A port extender provides individual flow control for ports multiplexed from a network device. The port extender is configured to multiplex a network device port across the front panel ports on the port extender. The port extender also determines that an input buffer for the network device port is overloaded, and generates a Priority-based Flow Control (PFC) frame identifying that the network device port is congested. The port extender sends the PFC frame via the network device port to the network device. The PFC frame causes the network device coupled to the network device port to discontinue sending data for transmission from the plurality of ports on the port extender.

公开(公告)号：US10419965B1

公开(公告)日：2019-09-17

申请号：US15397766

申请日：2017-01-04

申请人： Cisco Technology, Inc.

发明人： Aviran Kadosh ,  Ofer Iny ,  Eyal Michel Dagan

IPC分类号： H04W28/02 ,  H04L12/26 ,  H04L1/00 ,  H04L29/12 ,  H04W72/04

摘要： In one embodiment, a network node comprising: a memory, including one or more memory entries associated with a meter; a sensor adapted to detect a discrepancy between an allocated bandwidth allocated to the meter and a data bandwidth measured by the meter, the allocated bandwidth being a portion of a total allocated bandwidth allocated to a plurality of meters, and the discrepancy being that the allocated bandwidth compared to the data bandwidth is one of: excessive or insufficient; and a generator, wherein the generator is adapted, upon the sensor detecting that the allocated bandwidth is excessive, to generate a message indicative of at least part of the allocated bandwidth being released from the meter, and wherein the generator is further adapted, upon the sensor detecting that the allocated bandwidth is insufficient, to generate a message indicative of a request for an allocation of additional bandwidth to the meter.

公开(公告)号：US12132662B2

公开(公告)日：2024-10-29

申请号：US17825316

申请日：2022-05-26

申请人： Cisco Technology, Inc.

发明人： Aviran Kadosh

IPC分类号： H04L47/2483 ,  H04L41/0803 ,  H04L47/12 ,  H04L47/31 ,  H04L49/25

CPC分类号： H04L47/2483 ,  H04L41/0803 ,  H04L47/12 ,  H04L47/31 ,  H04L49/25

摘要： A port extender provides individual flow control for ports multiplexed from a network device. The port extender is configured to multiplex a network device port across the front panel ports on the port extender. The port extender also determines that an input buffer for the network device port is overloaded, and generates a Priority-based Flow Control (PFC) frame identifying that the network device port is congested. The port extender sends the PFC frame via the network device port to the network device. The PFC frame causes the network device coupled to the network device port to discontinue sending data for transmission from the plurality of ports on the port extender.

公开(公告)号：US11381512B1

公开(公告)日：2022-07-05

申请号：US16865838

申请日：2020-05-04

申请人： Cisco Technology, Inc.

发明人： Aviran Kadosh

IPC分类号： H04L47/2483 ,  H04L47/12 ,  H04L49/25 ,  H04L47/31 ,  H04L41/0803

摘要： A port extender provides individual flow control for ports multiplexed from a network device. The port extender is configured to multiplex a network device port across the front panel ports on the port extender. The port extender also determines that passing traffic through one of the front panel ports is degraded due to network congestion, and generates a flow control message identifying the front panel port. The port extender sends the flow control message via the network device port to the network device. The flow control message causes the network device coupled to the network device port to discontinue sending data for transmission from the degraded port.