Jisu Te Bhattacharya

US Patent:

7573840, Aug 11, 2009

Filed:

Apr 30, 2005

Appl. No.:

11/119464

Inventors:

Jisu Bhattacharya - Fremont CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04B 7/00

US Classification:

3703101, 3703951, 3703956

Abstract:

A profile for bearer data as found in IuUP and NbUP so that it can be signaled over SDP. The present invention provides AAL2 profiles that can be used to describe AAL2 bearer connections in a radio access network between a radio network controller (RNC) and a media gateway, or between two media gateways in a core network. In an embodiment, the call agent is a wireless call agent, such as a mobile switching center (MSC). The profiles provided by the present invention are used by the call agent to set up AAL2 bearer connections on the media gateway.

US Patent:

7957279, Jun 7, 2011

Filed:

May 30, 2007

Appl. No.:

11/755516

Inventors:

Nir Ben-Dvora - Herzliya, IL
Jisu Bhattacharya - Fremont CA, US
Chandrasekar Krishnamurthy - Sunnyvale CA, US
Doron Oz - Even Yehuda, IL
David D. Ward - Los Gatos CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04L 12/28
H04L 12/62

US Classification:

370230, 370352, 3703952, 709225, 709228

Abstract:

In one embodiment, a router receives a call request for establishing a multimedia exchange between two remote endpoints. The router selects a processing entity to manage a subset of connections with the remote endpoints according to an endpoint identification such as a remote address included in the call request. A different processing entity manages the remaining connections with the remote endpoints. Accordingly, the load of managing signaling for establishing the multimedia exchange is balanced between a plurality of processing elements that appear externally as a single entity such that modification of remote endpoint behavior is not required.

US Patent:

7376148, May 20, 2008

Filed:

Jan 26, 2004

Appl. No.:

10/765540

Inventors:

Jisu Bhattacharya - Fremont CA, US
Sarang Wagholikar - Santa Clara CA, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

H04J 3/16

US Classification:

370466, 37039564, 370517

Abstract:

Some embodiments adaptively adjust to the current call load in a packet based virtual circuit to minimize the delay experienced by the first packets of any talk spurt for a particular active call. Some embodiments minimize the jitter introduced by multiplexing voice packets by smoothing out the waiting time experienced by each of the voice packets. Some embodiments effectively minimize jitter when the number of active calls on a virtual circuit drops off suddenly. Some embodiments are able to differentiate signaling packets indicating a telephony event from voice packets and give the signaling packets expedited processing with no delay contributed by the subcell multiplexing process. Other embodiments are described in the claims.

US Patent:

20220232112, Jul 21, 2022

Filed:

Apr 5, 2022

Appl. No.:

17/713944

Inventors:

- San Jose CA, US
Jisu Bhattacharya - San Jose CA, US
Syed Kamran Raza - Kanata, CA
Clarence Filsfils - Brussels, BE

International Classification:

H04L 69/22
H04L 69/324
H04L 45/00
H04L 67/10
H04L 45/50
H04L 12/46
H04L 45/74
H04L 61/5007
H04L 49/35
H04L 67/63
H04L 45/741

Abstract:

In one embodiment, a Segment Routing network node provides efficiencies in processing and communicating Internet Protocol packets in a network. This Segment Routing node typically advertises (e.g., using Border Gateway Protocol) its Segment Routing processing capabilities, such as Penultimate Segment Pop (PSP) and/or Ultimate Segment Pop (USP) of a Segment Routing Header (including in the context of a packet that has multiple Segment Routing Headers). Subsequently, an Internet Protocol Segment Routing packet having multiple Segment Routing Headers is received. The packet is processed according to a Segment Routing function, with is processing including removing a first one of the Segment Routing Headers and forwarding the resultant Segment Routing packet. The value of the Segments Left field in the first Segment Routing Header identifies to perform PSP when the value is one, to perform USP when the value is zero, or to perform other processing.

US Patent:

20230082724, Mar 16, 2023

Filed:

Mar 21, 2022

Appl. No.:

17/699638

Inventors:

- San Jose CA, US
Rakesh Gandhi - Stittsville, CA
Jisu Bhattacharya - San Jose CA, US

International Classification:

H04L 45/50
H04L 45/42
H04L 45/12

Abstract:

Systems and techniques are provided for implementing multiprotocol label switching (MPLS) header extensions. In some examples, a method can include, receiving, by a router of a MPLS network, a data packet. In some aspects, the method can include adding, by the router of the MPLS network, at least one entry to an MPLS stack of the data packet, wherein the at least one entry includes an MPLS extension indicator (MEI) that is associated with at least one of an in-stack extension header presence indicator (IPI) and a bottom-of-stack extension header presence indicator (BPI). In some examples, the method can include adding, based on the IPI and the BPI, at least one of an in-stack extension header and a bottom-of-stack extension header to the MPLS stack of the data packet.

US Patent:

20210029034, Jan 28, 2021

Filed:

Oct 8, 2020

Appl. No.:

17/066140

Inventors:

- San Jose CA, US
Jisu Bhattacharya - San Jose CA, US
Zafar Ali - Hicksville NY, US
Syed Kamran Raza - Kanata, CA

International Classification:

H04L 12/749
H04L 12/741
H04L 12/751

Abstract:

In one embodiment, a method includes receiving a packet comprising a destination address in a destination address field of the packet, where the destination address including at least a first global identifier and a second global identifier, determining that the first global identifier corresponds to the first network apparatus, determining that a local identifier in the destination address is associated with the first global identifier, identifying one or more instructions associated with the local identifier, performing one or more functions instructed by the one or more instructions, updating the destination address in the destination field of the packet to an updated destination address, determining a forwarding rule associated with the packet, and forwarding the packet with the updated destination address based on the forwarding rule.

US Patent:

20200351199, Nov 5, 2020

Filed:

May 3, 2019

Appl. No.:

16/403070

Inventors:

- San Jose CA, US
Jisu Bhattacharya - San Jose CA, US
Zafar Ali - Hicksville NY, US
Syed Kamran Raza - Kanata, CA

International Classification:

H04L 12/749
H04L 12/741
H04L 12/751

Abstract:

In one embodiment, a method includes receiving a packet comprising a destination address in a destination address field of the packet, where the destination address including at least a first global identifier and a second global identifier, determining that the first global identifier corresponds to the first network apparatus, determining that a local identifier in the destination address is associated with the first global identifier, identifying one or more instructions associated with the local identifier, performing one or more functions instructed by the one or more instructions, updating the destination address in the destination field of the packet to an updated destination address, determining a forwarding rule associated with the packet, and forwarding the packet with the updated destination address based on the forwarding rule.

US Patent:

20200328971, Oct 15, 2020

Filed:

May 12, 2020

Appl. No.:

15/929610

Inventors:

- San Jose CA, US
Syed Kamran RAZA - Kanata, CA
Jisu BHATTACHARYA - San Jose CA, US

Assignee:

Cisco Technology, Inc., a California corporation - San Jose CA

International Classification:

H04L 12/741
H04L 29/06
H04L 12/723
H04L 12/715

Abstract:

In one embodiment, a Segment Routing network node provides efficiencies in processing and communicating Internet Protocol packets in a network. This Segment Routing node typically advertises (e.g., using Border Gateway Protocol) its Segment Routing processing capabilities, such as Penultimate Segment Pop (PSP) and/or Ultimate Segment Pop (USP) of a Segment Routing Header (including in the context of a packet that has multiple Segment Routing Headers). Subsequently, an Internet Protocol Segment Routing packet having multiple Segment Routing Headers is received. The packet is processed according to a Segment Routing function, with is processing including removing a first one of the Segment Routing Headers and forwarding the resultant Segment Routing packet. The value of the Segments Left field in the first Segment Routing Header identifies to perform PSP when the value is one, to perform USP when the value is zero, or to perform other processing.