DR. RAHUL AGGARWAL, M.D.
Osteopathic Medicine at Parnassus Ave, San Francisco, CA

8462635, Jun 11, 2013

Aug 30, 2010

12/871784

Rahul Aggarwal - San Francisco CA, US
Yakov Rekhter - New Rochelle NY, US

Juniper Networks, Inc. - Sunnyvale CA

G01R 31/08, G06F 11/00, G08C 15/00, H04J 1/16, H04J 3/14, H04L 1/00

370236, 370312, 370390, 370392, 3703955, 370432, 370469, 370536, 370542

The invention is directed toward techniques for Multi-Protocol Label Switching (MPLS) upstream label assignment for the Resource Reservation Protocol with Traffic Engineering (RSVP-TE). The techniques include extensions to the RSVP-TE that enable distribution of upstream assigned labels in Path messages from an upstream router to two or more downstream routers of tunnel established over a network. The tunnel may comprise a RSVP-TE P2MP Label Switched Path (LSP) or an Internet Protocol (IP) multicast tunnel. The techniques also include extensions to the RSVP-TE that enable a router to advertise upstream label assignment capability to neighboring routers in the network. The MPLS upstream label assignment using RSVP-TE described herein enables a branch router to avoid traffic replication on a Local Area Network (LAN) for RSVP-TE P2MP LSPs.

2012011, May 10, 2012

Jan 19, 2012

13/354136

Bhupesh KOTHARI - San Jose CA, US
Rahul AGGARWAL - San Francisco CA, US

JUNIPER NETWORKS, INC. - Sunnyvale CA

H04L 12/26

370228

A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing pseudo-wires with respect to the other provider edge devices, based on the pseudo-wire tables, where the pseudo-wires include an active pseudo-wire and at least one standby pseudo-wire with respect to each of the other provider edge devices. The method also includes generating and advertising VPLS advertisement to the other provider edge devices, detecting a communication link failure associated with one of the customer edge devices in which the provider edge device services, and determining whether the at least one standby pseudo-wire needs to be utilized because of the communication link failure.

7957330, Jun 7, 2011

Nov 27, 2007

11/945809

Nitin Bahadur - Santa Clara CA, US
David M. Katz - Santa Cruz CA, US
Nischal Sheth - Los Altos CA, US
Rahul Aggarwal - San Francisco CA, US

Juniper Networks, Inc. - Sunnyvale CA

H04B 1/44

370282, 370216, 701 66, 438439

The invention is directed to techniques for failsafe management of periodic communications between network devices. A first network device, for example, establishes with a second network device a first response interval by which the first device responds to a message received from the second device. Prior to commencing a software upgrade, the first device determines whether the event requires an interval of time during which the first device cannot respond to the message within the established first response interval. Based on the determination and prior to commencing the upgrade, the first device establishes with the second device a second response interval that equals or exceeds the first response interval. Upon completion of the event, the first device establishes with the second device a third response interval. The first network device therefore may automatically adjust response intervals to accommodate upgrades that may cause unnecessary thrashing.

7720061, May 18, 2010

Aug 18, 2006

11/506426

Umesh Krishnaswamy - San Jose CA, US
Nitin Bahadur - Santa Clara CA, US
Rahul Aggarwal - San Francisco CA, US

Juniper Networks, Inc. - Sunnyvale CA

H04L 12/28, H04L 12/56

370389, 370392, 370400, 370419

Techniques are described for configuration of a multi-chassis router for managing periodic communications between the multi-chassis router and other network devices. The multi-chassis router selectively processes data received from a network by determine whether the data: (1) indicates an operational state of a network device in association with a routing protocol, or (2) conveys routing information for the routing protocol. Data conveying routing information are processed by a master routing component of the multi-chassis router, while data indicating an operational state of a network device are processed by one or more slave routing components of the multi-chassis router. The techniques also allow the multi-chassis router to allocate responsibility for managing periodic communications for the set of routing protocols among a plurality of hierarchically arranged cooperative routing components within the multi-chassis router, such as switch card chassis, line card chassis, or interface cards within each line card chassis.

8411691, Apr 2, 2013

Apr 10, 2009

12/421706

Rahul Aggarwal - San Francisco CA, US

Juniper Networks, Inc. - Sunnyvale CA

H04L 12/56

370401, 370389, 370400, 370466

A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP MPLS Layer 3 Virtual Private Networks (VPNs). The architecture consists of several building blocks that provide functionality for different aspects of cellular network mobility. One building block is network-based macro mobility in IP/MPLS networks. The macro mobility techniques described herein are built on extensions to a routing protocol such as BGP. Another building block relates to transferring subscriber context between network devices while preserving the IP address of the subscriber. The techniques described herein provide a subscriber context transfer mechanism for mobile subscriber management that is built on extensions to a routing protocol such as BGP. Another building block of the mobility architecture is network-based micro mobility based on VPLS.

2010017, Jul 15, 2010

Apr 10, 2009

12/421693

Rahul Aggarwal - San Francisco CA, US
James Murphy - Alameda CA, US

Juniper Networks, Inc. - Sunnyvale

H04W 8/02

370338

A new architecture provides network-based mobility in cellular networks that is built on Internet Protocol (IP)/Multiprotocol Label Switching (MPLS) technologies, such as Virtual Private Local Area Network (LAN) Service (VPLS), the Border Gateway Protocol (BGP) and BGP MPLS Layer 3 Virtual Private Networks (VPNs). The architecture consists of several building blocks that provide functionality for different aspects of cellular network mobility. One building block is network-based macro mobility in IP/MPLS networks. The macro mobility techniques described herein are built on extensions to a routing protocol such as BGP. Another building block relates to transferring subscriber context between network devices while preserving the IP address of the subscriber. The techniques described herein provide a subscriber context transfer mechanism for mobile subscriber management that is built on extensions to a routing protocol such as BGP. Another building block of the mobility architecture is network-based micro mobility based on VPLS.

8121056, Feb 21, 2012

Jul 2, 2009

12/497078

Rahul Aggarwal - San Francisco CA, US
Yakov Rekhter - New Rochelle NY, US

Juniper Networks, Inc. - Sunnyvale CA

H04L 12/28, H04W 4/00

370256, 370338, 370390, 370392, 3703955, 370408

Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.

7522599, Apr 21, 2009

Aug 26, 2005

11/212475

Rahul Aggarwal - San Francisco CA, US
Yakov Rekhter - New Rochelle NY, US
Anil Lohiya - Cupertino CA, US

Juniper Networks, Inc. - Sunnyvale CA

H04L 12/28, H04L 12/56, H04L 9/00

370390, 713163

Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with increased scalability. In particular, the MVPNs may transport layer three (L3) multicast traffic, such as Internet Protocol (IP) packets, between remote sites via the public network. The principles described herein may reduce the overhead of protocol independent multicast (PIM) neighbor adjacencies and customer control information maintained for MVPNs. The principles may also reduce the state and the overhead of maintaining the state in the network by removing the need to maintain at least one dedicated multicast tree per each MVPN.

8111633, Feb 7, 2012

Jul 6, 2009

12/497939

Rahul Aggarwal - San Francisco CA, US
Yakov Rekhter - New Rochelle NY, US

Juniper Networks, Inc. - Sunnyvale CA

H04L 12/28, H04W 4/00

370256, 370338, 370390, 370392, 3703955, 370408

Principles of the invention are described for providing virtual private local area network service (VPLS) multicast instances across a public network by utilizing multicast trees. In particular, the VPLS multicast instances transport layer two (L2) multicast traffic, such as Ethernet packets, between customer networks via the public network. The principles described herein enable VPLS multicast instances to handle high bandwidth multicast traffic. The principles also reduce the state and the overhead of maintaining the state in the network by removing the need to perform snooping between routers within the network.