Anthony Li

US Patent:

7457233, Nov 25, 2008

Filed:

Jul 15, 1999

Appl. No.:

09/354640

Inventors:

Anthony Joseph Li - San Mateo CA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

G06F 11/00
H04J 1/16
H04L 12/26

US Classification:

370216, 370217, 370218, 370219, 370220, 370221

Abstract:

A method and an apparatus for rapidly resuming, at times of failures, network traffic in a connection-oriented network by using an alternative route pre-computed and stored locally in nodes along an initial route without requiring signaling of upstream nodes or a master server.

US Patent:

7525904, Apr 28, 2009

Filed:

Apr 14, 2003

Appl. No.:

10/414133

Inventors:

Anthony J. Li - San Mateo CA, US
William L. Lynch - La Honda CA, US
Peter M. Barnes - Mountain View CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 11/00

US Classification:

370217, 370219, 370221, 370225

Abstract:

A router and method therefore for routing and switching a packet from an incoming link to an outgoing link. The router may include a plurality of network processing units, a plurality of switching engines, and a plurality of connections between the plurality of network processing units and the plurality of switching engines defining a rotational symmetric topology. The router may also include a means for connecting the plurality of network processing units to the plurality of switching engines, as well as means for connecting the plurality of switching engines to the plurality of line card units. In one example, the plurality of line card units is connected with the plurality of switching engines in a full mesh topology.

US Patent:

7535826, May 19, 2009

Filed:

Dec 10, 2001

Appl. No.:

10/014323

Inventors:

Bruce Cole - San Francisco CA, US
Anthony Joseph Li - San Mateo CA, US

Assignee:

Juniper Networks, Inc - Sunnyvale CA

International Classification:

G01R 31/08

US Classification:

370218, 370255

Abstract:

Graceful restart in routers having redundant routing facilities may be accomplished by replicating network (state/topology) information.

US Patent:

7554914, Jun 30, 2009

Filed:

Mar 24, 2003

Appl. No.:

10/396192

Inventors:

Anthony J. Li - San Mateo CA, US
William L. Lynch - La Honda CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/56

US Classification:

370235, 370418, 370437

Abstract:

A method and system for determining an output port upon which to transmit a packet in a router having a plurality of output ports adapted to be coupled with an adjacent router. In one embodiment, a list is created of output ports that are coupled with the adjacent router, and the list is modified based on network traffic. A port is selected from the list of ports, and the packet is transmitted over the selected port. In one example, the list is modified continuously as a background process based on network traffic. The list may be modified by determining a port which is under-utilized, determining a port which is over-utilized, and substituting in the list one or more instances of the port which is over-utilized with one or more instances of the port which is under-utilized. In this manner, a router can adaptively and evenly distribute the packet transmission traffic over the output ports.

US Patent:

7710991, May 4, 2010

Filed:

Apr 14, 2003

Appl. No.:

10/414135

Inventors:

Anthony J. Li - San Mateo CA, US
William L. Lynch - La Honda CA, US
Peter M. Barnes - Mountain View CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370414, 370412, 370217, 370219, 370221

Abstract:

Methods of routing and switching a packet from an incoming link to an outgoing link of a router. In one example, the method includes assigning a destination queue to the packet, determining if the router is implemented in a scaled-down configuration, remapping the destination queue to one or more remapped destination queues, and storing the packet in the one or more remapped destination queues. In one embodiment, the method may also include requesting a packet from the destination queue, translating the request to the remapped destination queue, and transmitting the packet from the remapped destination queue.

US Patent:

7742437, Jun 22, 2010

Filed:

Nov 15, 2005

Appl. No.:

11/280950

Inventors:

Derek Man-Kit Yeung - Union City CA, US
Christian Hopps - San Francisco CA, US
Nair Venugopal - Fremont CA, US
Anthony Li - Los Altos CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28

US Classification:

370255, 370389, 370429, 709238, 707200

Abstract:

A networking device such as a router may include, in one embodiment, a database storing a plurality of link state entries, and a cache operatively coupled with the database, the cache storing entries relating to the link state entries of the database. The networking device may also include a module for sending, over a network, packets including link state data, the module operatively coupled with the cache. In one example, the module accesses the cache to create one or more packets including link state data. Embodiments of the invention may be used for forming CSNP packets (complete sequence number packets) without the need for having to repeatedly walking a link state database in order to form the CNSP packets.

US Patent:

7769816, Aug 3, 2010

Filed:

Dec 29, 2003

Appl. No.:

10/748343

Inventors:

Anthony J. Li - San Mateo CA, US
Rex Emmanuel Fernando - Bangalore, IN
Henk H. W. Smit - Groesbeek, NL
Hasmit S. Grover - Fremont CA, US
Avneesh Sachdev - Sunnyvale CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G06F 15/16
H04N 7/167
G06F 11/00
H04L 9/00

US Classification:

709207, 709206, 709203, 380201

Abstract:

A method for tracking a transmission status of one or more data elements to one or more devices. In one example, the method includes providing a list including one or more devices and one or more data elements; processing the list to determine a data element of the one or more data elements to transmit to a device of one of the one or more devices; and upon successfully transmitting the data element to the device, adjusting the list so that the list indicates that the device has received the transmitted data element. In this manner, the status of whether a particular data element has been sent to a particular device can be easily derived from the list.

US Patent:

7843808, Nov 30, 2010

Filed:

Oct 21, 2008

Appl. No.:

12/254906

Inventors:

Anthony Joseph Li - San Mateo CA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

G06F 11/00
H04J 1/16
H04L 12/26

US Classification:

370216, 370217, 370218, 370219, 370220, 370221

Abstract:

A method and an apparatus for rapidly resuming, at times of failures, network traffic in a connection-oriented network by using an alternative route pre-computed and stored locally in nodes along an initial route without requiring signaling of upstream nodes or a master server.