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Kang Zou Xi

from New York, NY
Age ~45

Kang Xi Phones & Addresses

  • New York, NY
  • Orange Park, FL
  • Doraville, GA
  • Augusta, GA
  • Norcross, GA

Work

Company: Dept. electrical & computer engineering, polytechnic institute of new york university May 2010 Position: Industry associate professor

Education

School / High School: Tsinghua University Jan 2003 Specialities: PhD in Electrical Engineering

Resumes

Resumes

Kang Xi Photo 1

Industry Associate Professor At Nyu-Poly

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Position:
Industry Associate Professor at Polytechnic Institute of New York University
Location:
Greater New York City Area
Industry:
Higher Education
Work:
Polytechnic Institute of New York University since 2010
Industry Associate Professor

Polytechnic Institute of New York University 2005 - 2010
Industry Assistant Professor

Osaka University 2003 - 2005
Research Associate

Beijing Huahuan Electronics Ltd Jan 2000 - Oct 2003
Senior Design Engineer
Education:
Tsinghua University 1998 - 2003
Ph.D., Electrical Engineering
Languages:
Chinese
Kang Xi Photo 2

Kang Xi

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Location:
Greater New York City Area
Industry:
Higher Education
Kang Xi Photo 3

Kang Xi

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Location:
Circleville, Ohio
Industry:
Chemicals
Kang Xi Photo 4

Kang Xi

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Location:
Greater New York City Area
Industry:
Computer Networking
Kang Xi Photo 5

Kang Xi Morganville, NJ

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Work:
Dept. Electrical & Computer Engineering, Polytechnic Institute of New York University

May 2010 to 2000
Industry Associate Professor

Dept. Electrical & Computer Engineering, Polytechnic Institute of New York University
Brooklyn, NY
Jan 2005 to May 2010
Industry Assistant Professor

Osaka University

Dec 2003 to Jan 2005
Research Associate

Beijing Huahuan Electronics

Jan 2000 to Dec 2003
Senior Network Design Engineer

Education:
Tsinghua University
Jan 2003
PhD in Electrical Engineering

Tsinghua University
Jun 1998
Bachelor in Electrical Engineering

Publications

Us Patents

Determining Rerouting Information For Double-Link Failure Recovery In An Internet Protocol Network

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US Patent:
7738365, Jun 15, 2010
Filed:
Nov 2, 2007
Appl. No.:
11/934208
Inventors:
Hung-Hsiang Jonathan Chao - Holmdel NJ, US
Kang Xi - Harrison NJ, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
G06F 11/00
US Classification:
370228, 370254, 370400, 709221, 709239, 709241, 709242
Abstract:
Backup ports for a first router of the survivable network are determined so that the first router can reach a destination node in the event of a double link failure. A routing path graph having the destination node is accepted. The routing path graph includes one or more links terminated by one or more primary ports of the first router. For each router of at least a part of the routing path graph, assuming that a link terminated by a primary port of the first router is removed, a first part of the routing path graph including the destination node and a second part of the routing path graph (sub-graph) separated from the first part are defined. Two exits for the sub-graph to reach the graph are determined. A primary backup port and a secondary backup port are determined for the first router using the determined two exits.

Rerouting For Double-Link Failure Recovery In An Internet Protocol Network

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US Patent:
7801031, Sep 21, 2010
Filed:
Nov 2, 2007
Appl. No.:
11/934213
Inventors:
Hung-Hsiang Jonathan Chao - Holmdel NJ, US
Kang Xi - Harrison NJ, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
H04J 1/16
US Classification:
370228
Abstract:
A router in a survivable portion of a network may forward packets to a destination node even in the event of a double-link failure. For a given destination node, the router has previously been configured with a primary port, a primary backup port, and a secondary backup port. The router receives a packet addressed to the destination node within the survivable portion of the network, wherein the packet includes information indicating that the packet has encountered a failure. The router then selects one of (A) the primary port, (B) the primary backup port and (C) the secondary backup port on which to forward the received packet, such that a backup path with no dead loops is defined. The router may obtain a recovery distance of at least one of (A) the primary backup port based on a backup path to which it leads, and (B) the secondary backup port based on a backup path to which it leads, and may further obtain counter information in a packet indicative of a failure distance. In this case, the router may select a port whose recovery distance is greater than the failure distance. The router may identify a pattern of the failure.

Determining Rerouting Information For Single-Link Failure Recovery In An Internet Protocol Network

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US Patent:
7869348, Jan 11, 2011
Filed:
Apr 10, 2007
Appl. No.:
11/786417
Inventors:
Hung-Hsiang Jonathan Chao - Holmdel NJ, US
Kang Xi - Harrison NJ, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
H04J 1/16
US Classification:
370225, 370216, 370217
Abstract:
For a survivable portion of a network, a backup port for a first router of the survivable network, to reach a destination node in the event of a single link failure, may be determined by (a) accepting a routing path graph having the destination node, wherein the routing path graph includes one or more links terminated by one or more primary ports of the first router, and (b) for each router of at least a part of the routing path graph, (1) assuming that a link terminated by a primary port of the current router is removed, defining (A) a first part of the routing path graph including the destination node, and (B) a second part of the routing path graph separated from the first part wherein the second part defines a sub-graph, and (2) determining the backup port for the first router by examining the sub-graph with respect to the first part of the routing path graph.

Determining Rerouting Information For Single-Node Failure Recovery In An Internet Protocol Network

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US Patent:
7876672, Jan 25, 2011
Filed:
Apr 10, 2007
Appl. No.:
11/786416
Inventors:
Hung-Hsiang Jonathan Chao - Holmdel NJ, US
Kang Xi - Harrison NJ, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
G01R 31/08
US Classification:
370218, 370221, 370225, 370389
Abstract:
For a survivable portion of a network, a backup port for a first router of the survivable network, to reach a destination node in the event of a single node failure, may be determined by (a) accepting a routing path graph having the destination node, wherein the routing path graph includes one or more links terminated by one or more primary ports of the first router; and (b) for each router of at least a part of the routing path graph, (1) assuming that the current router is removed, defining (A) a first part of the routing path graph including the destination node, and (B) a second part of the routing path graph separated from the first part wherein the second part defines one or more sub-graphs, and (2) determining the backup port for the first router by examining at least one of the one or more sub-graphs to find a link to the first part of the routing path graph.

Internet Protocol Fast Reroute For Shared Risk Link Group Failure Recovery

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US Patent:
8264955, Sep 11, 2012
Filed:
Jun 12, 2009
Appl. No.:
12/483912
Inventors:
H. Jonathan Chao - Holmdel NJ, US
Kang Xi - Harrison NJ, US
Assignee:
Polytechnic Institute of New York University - Brooklyn NY
International Classification:
G01R 31/08
G06F 11/00
G08C 15/00
H04J 1/16
H04J 3/14
H04L 1/00
H04L 12/26
US Classification:
370227
Abstract:
A scheme to achieve fast recovery from SRLG failures in the IP layer is described. An exemplary scheme, called multi-section shortest path first (“MSSPF”), builds on the idea of IP Fast Reroute (“IPFRR”), guarantees 100% recovery of SRLG failures and causes no dead loops. Given a source node, a destination node, and a shared risk group failure on a next hop from the source node to the destination node, failure recovery information may be determined by (1) accepting a graph representing network topology information including the source node and the destination node, (2) determining a node which is able to reach the destination node using a route which does not include the source node, wherein a path from the source node to the determined node is not affected by the shared risk group failure, and (3) storing, in association with the shared risk group failure, both (i) a network address associated with the determined node and (ii) an alternative output port of the source node using the shortest path from the source node to the determined node.

Balancing Load In A Network, Such As A Data Center Network, Using Flow Based Routing

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US Patent:
20120287791, Nov 15, 2012
Filed:
May 13, 2011
Appl. No.:
13/107721
Inventors:
Kang Xi - Morganville NJ, US
H. Jonathan CHAO - Holmdel NJ, US
International Classification:
H04L 12/26
US Classification:
370237
Abstract:
Load balancing is performed in a network using flow-based routing. For example, upon detection of a big flow, one or more alternative paths from a source host to a destination host in the network may be discovered by probing the network and generating, for each of the one or more alternative paths, an association of the packet header information of the big flow to an alternative path discovered using results of probing the network. Upon congestion in a path currently being used by the big flow, an alternative path that is not congested is selected from the one or more discovered alternative paths. The packet header information of the big flow is altered using the generated association of the packet header information to the selected alternative path such that the big flow will be transmitted using the selected alternative path.

Dynamically Provisioning Middleboxes

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US Patent:
20130003735, Jan 3, 2013
Filed:
Jun 28, 2011
Appl. No.:
13/171119
Inventors:
H. Jonathan CHAO - Holmdel NJ, US
Kang XI - Morganville NJ, US
International Classification:
H04L 12/56
US Classification:
370392
Abstract:
Hybrid security architecture (HSA) provides a platform for middlebox traversal in the network. The HSA decouples the middlebox control from network forwarding. More specifically, such embodiments may receive a data packet having a packet header including an Ethernet header identifying source and destination addresses in the network. A traffic type of the data packet is determined. Then, layer-2 forwarding information, which encodes a set of non-forwarding network service provider middleboxes in the network to be traversed by the data packet, is determined based on the traffic type. The layer-2 forwarding information is inserted into the Ethernet header and the data packet is forwarded into the network. The data packet will then traverse, according to the layer-2 forwarding information, a sequence of the middleboxes in the network, wherein at least one non-forwarding network service will be provided by each of the middleboxes to the data packet in a sequence.

Deadlock-Free Traffic Rerouting In Software-Defined Networking Networks

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US Patent:
20200358697, Nov 12, 2020
Filed:
Jul 27, 2020
Appl. No.:
16/939111
Inventors:
- Atlanta GA, US
Kang Xi - Morganville NJ, US
Simon Tse - Holmdel NJ, US
Narayan Padi - Cedar Knolls NJ, US
Alvin Goddard - Kendall Park NJ, US
Aswatnarayan Raghuram - Morganville NJ, US
Assignee:
AT&T Intellectual Property I, L.P. - Atlanta GA
International Classification:
H04L 12/721
H04L 12/723
H04L 12/771
H04L 12/24
H04L 12/803
H04L 12/851
H04L 12/801
H04L 12/715
H04L 12/717
H04L 12/707
H04L 12/703
Abstract:
Concepts and technologies disclosed herein are directed to deadlock-free traffic rerouting in software-defined networking (“SDN”) networks. According to one aspect of the concepts and technologies disclosed herein, a centralized SDN controller can determine that a packet flow along a path within at least a portion of a network is to be rerouted from the path to a new path. The centralized SDN controller can initiate a reroute of the packet flow to the new path. The centralized SDN controller can request a bandwidth for the new path. The bandwidth can be determined such that bandwidth oversubscription on the new path is avoided. In response to the packet flow settling on the new path, the centralized SDN controller can adjust a requested bandwidth of the packet flow to a desired value to complete the reroute of the packet flow from the path to the new path.
Kang Zou Xi from New York, NY, age ~45 Get Report