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1. 发明授权

US10230810B1 Storing packet data in mirror buffer 有权
公开(公告)号：US10230810B1
公开(公告)日：2019-03-12
申请号：US15161263
申请日：2016-05-22
申请人： Barefoot Networks, Inc.
发明人： Parag D. Bhide , Alain Loge , Chaitanya Kodeboyina , Anurag Agrawal
IPC分类号： H04L29/08 , H04L29/06
摘要： Some embodiments provide a method for a hardware forwarding element. Based on a set of characteristics of a packet, the method determines to copy a packet to a particular temporary storage of a set of temporary storages of the hardware forwarding element. Based on a property of the particular temporary storage, the method stores only a particular portion of the packet in the particular temporary storage. A same size portion of each packet copied to the particular temporary storage is stored in the particular temporary storage.

2. 发明授权

US11595289B2 Network testing using a programmable packet engine 有权
公开(公告)号：US11595289B2
公开(公告)日：2023-02-28
申请号：US16833227
申请日：2020-03-27
申请人： Barefoot Networks, Inc.
发明人： Jeongkeun Lee , Georgios Nikolaidis , Andre Lam , Remy Chang , Joon-Myung Kang , Ashkan Nikravesh , Ramkumar Krishnamoorthy , Alain Loge
IPC分类号： H04L12/26 , H04L43/106 , H04L43/50 , H04L69/22
摘要： Embodiments described herein describe a network tester that is configured to perform packet modification at an egress pipeline of a programmable packet engine. A packet stream is received at an egress pipeline of an output port of the programmable packet engine, wherein the output port includes a packet modifier. Packets of the packet stream are modified at the packet modifier. The packet stream including modified packets is transmitted through an egress pipeline of the output port.

3. 发明授权

US11019172B2 Storing packet data in mirror buffer 有权
公开(公告)号：US11019172B2
公开(公告)日：2021-05-25
申请号：US16994353
申请日：2020-08-14
申请人： Barefoot Networks, Inc.
发明人： Parag D. Bhide , Alain Loge , Chaitanya Kodeboyina , Anurag Agrawal
IPC分类号： H04L29/08 , H04L29/06
摘要： Some embodiments provide a method for a hardware forwarding element. Based on a set of characteristics of a packet, the method determines to copy a packet to a particular temporary storage of a set of temporary storages of the hardware forwarding element. Based on a property of the particular temporary storage, the method stores only a particular portion of the packet in the particular temporary storage. A same size portion of each packet copied to the particular temporary storage is stored in the particular temporary storage.

4. 发明授权

US10785342B1 Storing packet data in mirror buffer 有权
公开(公告)号：US10785342B1
公开(公告)日：2020-09-22
申请号：US16289001
申请日：2019-02-28
申请人： Barefoot Networks, Inc.
发明人： Parag D. Bhide , Alain Loge , Chaitanya Kodeboyina , Anurag Agrawal
IPC分类号： H04L29/08 , H04L29/06
摘要： Some embodiments provide a method for a hardware forwarding element. Based on a set of characteristics of a packet, the method determines to copy a packet to a particular temporary storage of a set of temporary storages of the hardware forwarding element. Based on a property of the particular temporary storage, the method stores only a particular portion of the packet in the particular temporary storage. A same size portion of each packet copied to the particular temporary storage is stored in the particular temporary storage.

5. 发明授权

US10949199B1 Copying packet data to mirror buffer 有权
公开(公告)号：US10949199B1
公开(公告)日：2021-03-16
申请号：US15836528
申请日：2017-12-08
申请人： Barefoot Networks, Inc.
发明人： Xiaozhou Li , Jeongkeun Lee , Srivathsa Dhruvanarayan , Anurag Agrawal , Changhoon Kim , Alain Loge
IPC分类号： H04L12/66 , G06F9/30 , G06F9/38 , G06F9/28 , H04W8/30 , H04L12/743
摘要： Some embodiments provide a method for a network forwarding integrated circuit (IC). The method receives packet data with an instruction to copy a portion of the packet data to a temporary storage of the network forwarding IC. The portion is larger than a maximum entry size of the temporary storage. The method generates a header for each of multiple packet data sections for storage in entries of the temporary storage, with each packet data section including a sub-portion of the packet data portion. The method sends the packet data sections with the generated headers to the temporary storage for storage in multiple separate temporary storage entries.

6. 发明授权

US10599603B1 Forwarding element integrated circuit chip with separate I/O and switching tiles 有权
公开(公告)号：US10599603B1
公开(公告)日：2020-03-24
申请号：US15896018
申请日：2018-02-13
申请人： Barefoot Networks, Inc.
发明人： Anurag Agrawal , Alain Loge
IPC分类号： G06F13/40 , H03K17/81
摘要： Some embodiments of the invention provide a novel method and chip design for a forwarding chip, that decouples input-output (IO) technology requirements from the technology used in a high bandwidth switching ASIC. In some embodiments, a main die including a latest generation switching chip is coupled to a set of IO dies (e.g., SerDes dies). The main die, in some embodiments, uses a latest technology (e.g., 7 nm nodes) while the IO dies, in some embodiments, use a more mature technology (e.g., 16 nm nodes). Some embodiments provide multiple IO dies that each provide connectivity to external components to the high bandwidth switching ASIC (e.g., a core ASIC die). The multiple dies are mounted on a silicon interposer, in some embodiments, using microbumps to make the connections between the dies and the silicon interposer. Additional connections to the pad are made from each die including to general purpose input-output (GPIO) connections. In some embodiments, the main die and the IO dies make all connections through microbumps on the silicon interposer and some microbumps connect to external components using through-silicon vias (TSVs). The microbumps of the main die, in some embodiments, are arranged so that they are mirrored on either side of the main die and rotationally invariant under a 180 degree rotation. IO dies, in some embodiments, are mounted in a first orientation to connect to a first side of the main die and a second rotated (by 180 degrees) orientation to connect to a second opposite side of the main die.

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