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Pirabhu Raman

from Fremont, CA
Age ~46
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Also known as:
Pirabhu Ramen
Phone and address:
96 Buck Ct, Fremont, CA 94539
Related to:
Gayathri Venkataraman, 48Satish VenkatramanVisalakshi VenkataramanBalakrishnan Raman, 49Raghavan Raman
Connected to:
Anupam Raman, 45Arvind Raman, 47Christine A Raman, 53Fabio S Raman, 35Jayesh K Raman, 59Jennifer Raman, 49Jyothi K Raman, 49Kootala V Raman, 66Krishnamoorthy Raman, 45Mahesh Raman, 51

Pirabhu Raman Phones & Addresses

  • 96 Buck Ct, Fremont, CA 94539
  • 185 Estancia Dr, San Jose, CA 95134
  • Santa Clara, CA
  • Birmingham, AL
  • Starkville, MS
  • Gainesville, FL
  • 12 Lumus Dr, Starkville, MS 39759

Work

Company: Cisco systems 2005 Position: Technical leader

Skills

Data Center • VLAN • Cloud Computing • Cluster • TCP/IP • Ethernet • Switches • Multicast • Layer 2 • High Availability • Distributed Systems • IPv6 • QoS • Routing

Industries

Computer Networking

Resumes

Resumes

Pirabhu Raman Photo 1

Technical Leader

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Position:
Technical Leader at Cisco Systems
Location:
San Francisco Bay Area
Industry:
Computer Networking
Work:
Cisco Systems since 2005
Technical Leader
Skills:
Data Center
VLAN
Cloud Computing
Cluster
TCP/IP
Ethernet
Switches
Multicast
Layer 2
High Availability
Distributed Systems
IPv6
QoS
Routing

Publications

Us Patents

Forwarding Multi-Destination Packets In A Network With Virtual Port Channels

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US Patent:
8249069, Aug 21, 2012
Filed:
Mar 30, 2010
Appl. No.:
12/798131
Inventors:
Pirabhu Raman - San Jose CA, US
Dinesh Dutt - Sunnyvale CA, US
Mahesh Maddury - San Jose CA, US
Subbarao Arumilli - Santa Clara CA, US
Vijay Rangarajan - Fremont CA, US
Ray Kloth - Saratoga CA, US
Sanjay Sane - Fremont CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
US Classification:
370390, 370401
Abstract:
In one embodiment, a method includes receiving a multi-destination packet at a switch in communication with a plurality of servers through a network device, identifying a port receiving the multi-destination packet at the switch or a forwarding topology for the multi-destination packet, selecting a bit value based on the identified port or forwarding topology, inserting the bit value into a field in a virtual network tag in the multi-destination packet, and forwarding the multi-destination packet with the virtual network tag to the network device. The network device is configured to forward the multi-destination packet to one or more of the servers based on the bit value in the multi-destination packet. An apparatus for forwarding multi-destination packets is also disclosed.

Achieving About An Equal Number Of Active Links Across Chassis In A Virtual Port-Channel Environment

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US Patent:
8401026, Mar 19, 2013
Filed:
May 18, 2009
Appl. No.:
12/467675
Inventors:
Pirabhu Raman - San Jose CA, US
Sanjay Sane - Fremont CA, US
Kalyan Ghosh - Santa Clara CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
US Classification:
370396
Abstract:
Two or more network devices can automatically coordinate to aggregate ports into virtual port channels. Ports of the port channel can be automatically assigned priorities to achieve about an equal distribution of active links across the two or more network devices.

Dynamic Load Balancing For Port Groups

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US Patent:
8467294, Jun 18, 2013
Filed:
Feb 11, 2011
Appl. No.:
12/931821
Inventors:
Pirabhu Raman - San Jose CA, US
Deepak Cherian - Newark CA, US
Hariharan Balasubramanian - Oak Park CA, US
Ramprasad Nagaraja Rao - San Jose CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
G01R 31/08
US Classification:
370235, 370412
Abstract:
In one embodiment, a method includes receiving a packet at an input port of a network device, the input port having a plurality of queues with at least one queue for each output port at the network device, identifying a port group for transmitting the packet from the network device, the port group having a plurality of members each associated with one of the output ports, and selecting one of the queues based on utilization of the members. An apparatus for load balancing is also disclosed.

Maintaining Balance Of Active Links Across Network Devices In A Double-Sided Virtual Port-Channel Environment

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US Patent:
8514743, Aug 20, 2013
Filed:
Jun 17, 2010
Appl. No.:
12/802951
Inventors:
Pirabhu Raman - San Jose CA, US
Sanjay Sane - Fremont CA, US
Kalyan Ghosh - Santa Clara CA, US
Yuan-Chi Ma - San Jose CA, US
Man-Yee Hau - Los Gatos CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
US Classification:
370254
Abstract:
In one embodiment, a method includes configuring a first network device for operation in a first logical group with a second network device, receiving information from other network devices configured for operation in a second logical group, the information uniquely identifying each of the other network devices within the second logical group, and assigning a priority to each link connecting the first network device to the second logical group network devices. A portion of the links are selected as active links based on the link priorities and the link priorities are assigned such that a balance of active links is maintained across the second logical group network devices. An apparatus for maintaining a balance of active links across the network devices is also disclosed.

Local Switching At A Fabric Extender

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US Patent:
20120287930, Nov 15, 2012
Filed:
May 13, 2011
Appl. No.:
13/068540
Inventors:
Pirabhu Raman - San Jose CA, US
Assignee:
CISCO TECHNOLOGY, INC. - San Jose CA
International Classification:
H04L 12/56
US Classification:
370392
Abstract:
In one embodiment, a method includes receiving a packet at a fabric extender, performing a look up in a flow table at the fabric extender for a flow associated with the packet, processing the packet at the fabric extender based on an entry in the flow table if an entry for the flow is found in the flow table, and forwarding the packet to an upstream network device configured to forward the packet if an entry for the flow is not found in the flow table. An apparatus is also disclosed.

Scalable Media Access Control Protocol Synchronization Techniques For Fabric Extender Based Emulated Switch Deployments

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US Patent:
20140044126, Feb 13, 2014
Filed:
Aug 8, 2012
Appl. No.:
13/569224
Inventors:
Pirabhu Raman - San Jose CA, US
Assignee:
CISCO TECHNOLOGY, INC. - San Jose CA
International Classification:
H04L 12/66
US Classification:
370354
Abstract:
Techniques are provided to prevent switches in a data center fabric path environment with fabric path extension devices from media access control (MAC) address flooding and MAC address table overflow. In such an environment, endpoints associated with virtual port channels are connected to multiple switches which normally would perform MAC address flooding across all switch forwarding engines. The switches in the fabric path exchange MAC synchronization messages based on source/destination specific connectivity such that MAC broadcast messages that advertise source/destination MAC addresses for endpoints do not have to be repeatedly sent and their corresponding MAC lookup tables do not have to be updated or include unnecessary MAC table entries.

Virtual Port Channel Switches With Distributed Control Planes

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US Patent:
8204061, Jun 19, 2012
Filed:
Jul 23, 2009
Appl. No.:
12/460719
Inventors:
Sanjay Sane - Fremont CA, US
Smita Rai - Mountain View CA, US
Pirabhu Raman - San Jose CA, US
Umesh Mahajan - Cupertino CA, US
Assignee:
Cisco Technology, Inc. - San Jose CA
International Classification:
H04L 12/28
H04L 12/56
G06F 15/173
US Classification:
370395, 370351, 370392, 709223
Abstract:
In one embodiment, an apparatus includes one or more ports for connection to one or more links in communication with a network device, a multi-chassis trunk (MCT) port for connection to an MCT in communication with a switch, and an MCEC manager for creating an MCEC comprising the one or more links in communication with the network device and one or more links connecting the switch to the network device, and transmitting messages to the switch to synchronize state for the MCEC. The apparatus further includes a control plane and a data plane configured for operation independent from a control plane and a data plane at the switch. A method is also disclosed.

Methods And Systems For Service State Replication Using Original Data Packets

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US Patent:
20220377013, Nov 24, 2022
Filed:
Jun 30, 2021
Appl. No.:
17/364750
Inventors:
- Milpitas CA, US
Sarat Kamisetty - Fremont CA, US
Balakrishnan Raman - Fremont CA, US
Chandrasekaran Swaminathan - Bangalore, IN
Maruthi Ram Namburu - Bangalore, IN
Vijay Sampath - Milpitas CA, US
Akshay Nadahalli - Bangalore, IN
Pirabhu Raman - Fremont CA, US
John Cruz - San Jose CA, US
International Classification:
H04L 12/741
H04L 12/751
H04L 12/721
H04L 12/709
H04L 29/12
Abstract:
Network traffic flows can be processed by routers, switches, or service nodes. Service nodes may be ASICs that can provide the functionality of a switch or a router. Service nodes can be configured in a circular replication chain, thereby providing benefits such as high reliability. The service nodes can implement methods that include receiving a first packet that includes a source address in a source address field and that includes a destination address in a destination address field, routing the first packet to a selected service node that is in a circular replication chain that includes a plurality of service nodes that have local flow tables and are configured for chain replication of the local flow tables, producing a second packet by using a matching flow table entry of the first packet to process the first packet, and sending the second packet toward a destination indicated by the destination address.
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Pirabhu Raman from Fremont, CA, age ~46 Get Report