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Hongwei Zhu, 57Sacramento, CA

Known as:
Hong W Zhu Hong Weizhu Wei Zhu Hong
Related to:
Yidan Zhu 35 Hongzhe Liu 37

Hongwei Zhu Phones & Addresses

Sacramento, CA   

Sunnyvale, CA   

Brooklyn, NY   

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Software Engineer

Location:
San Francisco, CA
Industry:
Computer Networking
Work:
Brocade since 2009
Software Engineer Juniper Networks since Jan 2005
Staff Software Engineer
Education:
Peking University 1988 - 1992
bachelor, e.e.
Skills:
Computer Networking, Software

Publications & IP owners

Us Patents

Method And Apparatus For Optically Determining Physical Parameters Of Thin Films Deposited On A Complex Substrate

US Patent:
6392756, May 21, 2002
Filed:
Jun 18, 1999
Appl. No.:
09/336404
Inventors:
Guoguang Li - San Jose CA
Hongwei Zhu - San Jose CA
Dale A. Harrison - Tracy CA
Abdul Rahim Forouhi - Cupertino CA
Weilu Xu - San Jose CA
Assignee:
NK Technology, Inc. - Santa Clara CA
International Classification:
G01B 1106
US Classification:
356632, 356504, 356369
Abstract:
A method and an apparatus for optically determining a physical parameter such as thickness t, index of refraction n, extinction coefficient k or a related physical parameter such as energy bandgap E of a thin film. A test beam having a wavelength range is used to illuminate the thin film after it is deposited on a complex substrate which has at least two layers and exhibits a non-monotonic and an appreciably variable substrate optical response over wavelength range. Alternatively, the thin film can be deposited between the at least two layers of the complex substrate. A measurement of a total optical response, consisting of the substrate optical response and an optical response difference due to the thin film is performed over wavelength range. The at least two layers making up the complex substrate are chosen such that the effect of multiple internal reflections in the complex substrate and the film is maximized. The physical parameters are determined from the total optical response which can be in the form of a reflected and/or a transmitted beam.

Method And Apparatus For Optically Determining Physical Parameters Of Underlayers

US Patent:
6091485, Jul 18, 2000
Filed:
Dec 15, 1999
Appl. No.:
9/464640
Inventors:
Guoguang Li - San Jose CA
Hongwei Zhu - San Jose CA
Dale A. Harrison - Tracy CA
Abdul Rahim Forouhi - Cupertino CA
Weilu Xu - San Jose CA
Assignee:
N & K Technology, Inc. - Santa Clara CA
International Classification:
G01N 2100
US Classification:
356 73
Abstract:
A method and apparatus for optically determining a physical parameter of an underlayer such as the underlayer refractive index N. sub. u, extinction coefficient k. sub. u and/or thickness t. sub. u through a top layer having a first top layer thickness t. sub. 1 and an assigned refractive index index n. sub. t and coefficient of extinction k. sub. t. The values of index n. sub. t and extinction coefficient k. sub. t can be estimated, optically determined or assigned based on prior knowledge. In a subsequent step a first reflectance R. sub. 1 is measured over a wavelength range. DELTA. lambda. by using a test beam spanning that wavelength range. Then, a second reflectance R. sub. 2 of the top layer and underlayer is measured using the test beam spanning wavelength range. DELTA. lambda. at a second top layer thickness t. sub. 2. In a calculation step the physical parameter of the underlayer is determined from the first reflectance measurement R. sub.

Allocating Additional Bandwidth To Resources In A Datacenter Through Deployment Of Dedicated Gateways

US Patent:
2022037, Nov 24, 2022
Filed:
Jun 11, 2021
Appl. No.:
17/344959
Inventors:
- Palo Alto CA, US
Ganesh Sadasivan - Fremont CA, US
Dileep K. Devireddy - San Jose CA, US
Hongwei Zhu - Mountain View CA, US
Sreenivas Duvvuri - San Ramon CA, US
International Classification:
H04L 12/721
H04L 12/707
Abstract:
Some embodiments provide policy-driven methods for deploying edge forwarding elements in a public or private SDDC for tenants or applications. For instance, the method of some embodiments allows administrators to create different traffic groups for different applications and/or tenants, deploys edge forwarding elements for the different traffic groups, and configures forwarding elements in the SDDC to direct data message flows of the applications and/or tenants through the edge forwarding elements deployed for them. The policy-driven method of some embodiments also dynamically deploys edge forwarding elements in the SDDC for applications and/or tenants after detecting the need for the edge forwarding elements based on monitored traffic flow conditions.

Allocating Additional Bandwidth To Resources In A Datacenter Through Deployment Of Dedicated Gateways

US Patent:
2022037, Nov 24, 2022
Filed:
Jun 11, 2021
Appl. No.:
17/344956
Inventors:
- Palo Alto CA, US
Dileep K. Devireddy - San Jose CA, US
Hongwei Zhu - Mountain View CA, US
Sreenivas Duvvuri - San Ramon CA, US
International Classification:
H04L 12/923
H04L 12/911
H04L 12/927
H04L 12/721
H04L 12/741
H04L 12/713
Abstract:
Some embodiments provide policy-driven methods for deploying edge forwarding elements in a public or private SDDC for tenants or applications. For instance, the method of some embodiments allows administrators to create different traffic groups for different applications and/or tenants, deploys edge forwarding elements for the different traffic groups, and configures forwarding elements in the SDDC to direct data message flows of the applications and/or tenants through the edge forwarding elements deployed for them. The policy-driven method of some embodiments also dynamically deploys edge forwarding elements in the SDDC for applications and/or tenants after detecting the need for the edge forwarding elements based on monitored traffic flow conditions.

Allocating Additional Bandwidth To Resources In A Datacenter Through Deployment Of Dedicated Gateways

US Patent:
2022037, Nov 24, 2022
Filed:
Jun 11, 2021
Appl. No.:
17/344958
Inventors:
- Palo Alto CA, US
Dileep K. Devireddy - San Jose CA, US
Hongwei Zhu - Mountain View CA, US
Sreenivas Duvvuri - San Ramon CA, US
International Classification:
H04L 12/923
H04L 12/911
H04L 12/927
H04L 12/713
H04L 12/717
Abstract:
Some embodiments provide policy-driven methods for deploying edge forwarding elements in a public or private SDDC for tenants or applications. For instance, the method of some embodiments allows administrators to create different traffic groups for different applications and/or tenants, deploys edge forwarding elements for the different traffic groups, and configures forwarding elements in the SDDC to direct data message flows of the applications and/or tenants through the edge forwarding elements deployed for them. The policy-driven method of some embodiments also dynamically deploys edge forwarding elements in the SDDC for applications and/or tenants after detecting the need for the edge forwarding elements based on monitored traffic flow conditions.

Allocating Additional Bandwidth To Resources In A Datacenter Through Deployment Of Dedicated Gateways

US Patent:
2022031, Sep 29, 2022
Filed:
Jun 13, 2022
Appl. No.:
17/839336
Inventors:
- Palo Alto CA, US
Ganesh Sadasivan - Fremont CA, US
Hongwei Zhu - Mountain View CA, US
Sreenivas Duvvuri - San Ramon CA, US
International Classification:
H04L 47/783
H04L 12/66
H04L 12/46
H04L 45/74
H04L 61/2514
H04L 61/5014
Abstract:
Some embodiments provide a method for deploying edge forwarding elements in a public or private software defined datacenter (SDDC). For an entity, the method deploys a default first edge forwarding element to process data message flows between machines of the entity in a first network of the SDDC and machines external to the first network of the SDDC. The method subsequently receives a request to allocate more bandwidth to a first set of the data message flows entering or exiting the first network of the SDDC. In response, the method deploys a second edge forwarding element to process the first set of data message flows of the entity in order to allocate more bandwidth to the first set of the data message flows, while continuing to process a second set of data message flows of the entity through the default first edge node. The method in some embodiments receives the request for more bandwidth by first receiving a request to create a traffic group and then receiving a list of network addresses that are associated with the traffic group. In some embodiments, the method receives the list of network addresses associated with the traffic group by receiving a prefix of network addresses and receiving a request to associate the prefix of network addresses with the traffic group. Based on this request, the method then creates an association between the traffic group and the received prefix of network addresses.

Tunnel Endpoint Group Records For Inter-Datacenter Traffic

US Patent:
2021031, Oct 7, 2021
Filed:
Jun 19, 2020
Appl. No.:
16/906902
Inventors:
- Palo Alto CA, US
Hongwei Zhu - Mountain View CA, US
Jia Yu - Sunnyvale CA, US
Abhishek Goliya - Pune, IN
International Classification:
H04L 12/66
H04L 12/46
H04L 12/741
H04L 12/713
H04L 12/931
H04L 29/12
Abstract:
Some embodiments provide a method for an edge computing device in a first datacenter that implements a logical network gateway for processing data traffic for a particular LFE between the first datacenter and multiple other datacenters. For each particular other datacenter, the method stores a record that maps logical network addresses for DCNs connected to the particular LFE and operating in the particular datacenter to a group of TEP addresses corresponding to logical network gateways that handle data traffic for the particular LFE between the particular datacenter and the other datacenters, including the first datacenter. Upon receiving a data message for the particular LFE from a host computer in the first datacenter, the method uses a destination address of the data message to identify one of the groups of TEP addresses. The method encapsulates the data message with one of the TEP addresses from the identified group of TEP addresses.

Tunnel Endpoint Group Records

US Patent:
2021031, Oct 7, 2021
Filed:
Jun 19, 2020
Appl. No.:
16/906901
Inventors:
- Palo Alto CA, US
Hongwei Zhu - Mountain View CA, US
Jia Yu - Sunnyvale CA, US
Abhishek Goliya - Pune, IN
International Classification:
H04L 29/12
H04L 12/66
Abstract:
Some embodiments provide a method for an MFE, in a first datacenter, to implement an LN spanning the first datacenter and a set of additional datacenters. The method stores records that each map one or more LN addresses for DCNs belonging to the LN and operating in the first datacenter to a different TEP address. The method stores an additional record that maps addresses for DCNs connected to a particular LFE of the LN and operating in the additional datacenters to a group of TEP addresses corresponding to LN gateways that handle data traffic for the particular LFE between the first datacenter and the additional datacenters. Upon receiving a data message with a destination address corresponding to a DCN connected to the particular LFE and operating in one of the additional datacenters, the method uses the additional record to identify a TEP address for encapsulating the data message.

Possible Relatives

Dawei I Zhu  Dehua Zhu  Di Zhu  Dian C Zhu  Diana Zhu  Dong Zhu  Dongming Zhu  Hongwei Li  Hongwei Liu 

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