Inventor
Alvaro E. Retana
Inventor
Raleigh, NC, US
Overview
Patents· 61 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication71%
H04WWireless communication networks15%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use4%
G06FElectric digital data processing2%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications2%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes1%
H04JMultiplex communication1%
H04MTelephonic communication1%
H04QSelecting1%
PatentTitleYear
10,609,621Directed acyclic graph optimization for future time instance requested by a child network device202010,225,174Apparatus and method to hide transit only multi-access networks in OSPF201910,015,075Directed acyclic graph optimization for future time instance advertised by a parent network device20189,942,145Attribute SET_ID in border gateway protocol20189,843,498'Attribute set—ID in border gateway protocol'20179,742,670'Non-eligible distance vector protocol paths as backup paths'20179,722,910'Transit domain control'20179,722,919'Tying data plane paths to a secure control plane'20179,722,911'Signaling existence of a network node that is in a reduced-power mode'20179,654,482'Overcoming circular dependencies when bootstrapping an RPKI site'20179,641,430'Verifying data plane paths based on a validated secure control plane'20179,413,636'Network topologies for energy efficient networks'20169,356,856'Apparatus and method to hide transit only multi-access networks in OSPF'20169,191,227'Determining a route advertisement in a reactive routing environment'20159,124,449'Network topologies for energy efficient networks'20159,043,487'Dynamically configuring and verifying routing information of broadcast networks using link state protocols in a computer network'20158,964,741'Adjacency discovery through multicast and single-hop messaging'20158,879,392'BGP security update intercepts'20148,705,539'Determining a route advertisement in a reactive routing environment'20148,699,410'Method and apparatus for automatic sub-division of areas that flood routing information'20148,688,807'Deriving unique local addresses from device names'20148,640,236'Performing a defensive procedure in response to certain path advertisements'20148,537,817'Apparatus and method to hide transit only multi-access networks in OSPF'20138,452,014'Group key management for mobile ad-hoc networks'20138,400,945'Transit prevention in hub-and-spoke topologies using link state protocols'20138,346,961'System and method for using routing protocol extensions for improving spoke to spoke communication in a computer network'20138,203,934'Transparent automatic protection switching for a chassis deployment'20128,130,638'Method and apparatus to elect ABRs dynamically and intelligently'20128,121,130'Determining an optimal route advertisement in a reactive routing environment'20128,098,589'System and method for exchanging awareness information in a network environment'20128,072,908'Partitioned forwarding of packets originated on a broadcast link among layer 2 forwarding devices of different adjacency networks'20118,009,591'Automatic overlapping areas that flood routing information'20117,978,612'Two-hop relay for reducing distance vector routing information'20117,940,668'Method and apparatus to enable an IPe domain through EIGRP'20117,940,776'Fast re-routing in distance vector routing protocol networks'20117,936,667'Building backup tunnels for fast reroute in communications networks'20117,929,524'Apparatus and method to hide transit only multi-access networks in OSPF'20117,924,726'Arrangement for preventing count-to-infinity in flooding distance vector routing protocols'20117,899,005'Method and apparatus for passing routing information among mobile routers'20117,889,655'Techniques for detecting loop-free paths that cross routing information boundaries'20117,860,027'Extending an IP everywhere network over a plurality of flooding domains'20107,821,956'System and method for controlling the flooding of information in a network environment'20107,808,927'Technique to automatically deaggregate an optimum set to prevent suboptimal routing or routing failures within a link state flooding domain'20107,782,858'Validating internal routing protocol information passed through an external routing protocol'20107,778,235'Compression of a routing header in a packet by a mobile router in an ad hoc network'20107,768,995'Techniques for one-way synchronization of routing information among intermediate nodes'20107,733,798'Evaluation of network data aggregation'20107,697,505'Techniques for decreasing queries to discover routes in an interior gateway protocol'20107,672,253'Border router with selective filtering of link state advertisements'20107,668,119'Ad hoc network formation and management based on aggregation of ad hoc nodes according to an aggregation hierarchy'20107,626,948'System and method for verifying the validity of a path in a network environment'20097,609,672'Method and apparatus for automatic sub-division of areas that flood routing information'20097,583,672'Techniques to support asymmetrical static/dynamic adjacency in routers'20097,525,949'Forwarding for network devices'20097,515,551'Techniques for reducing adjacencies in a link-state network routing protocol'20097,391,730'System and method for synchronizing link state databases in a network environment'20087,363,387'System and method for reducing information being transmitted in a network environment'20087,333,501'Techniques for determining network nodes to represent, multiple subnetworks for a routing protocol'20087,319,674'System and method for exchanging awareness information in a network environment'20087,298,707'System and method for controlling the flooding of information in a network environment'20077,281,265'System and method for communicating packets in a network environment'2007Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2007–2020Patents assigned to CISCO TECH INC (58)· patent assignee history
2007–2012Based in Morrisville, NC, US· patent location history
2008–2020Based in Raleigh, NC, US· patent location history
2009Based in RTP, NC, US· patent location history
2011–2015Patents assigned to WHITE RUSSELL I (6)· patent assignee history
2011–2014Patents assigned to RETANA ALVARO ENRIQUE (4)· patent assignee history
2011Based in Cary, NC, US· patent location history
2012–2017Patents assigned to RETANA ALVARO E (10)· patent assignee history
2013–2015Patents assigned to RETANA ALVARO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CISCO TECH INC | 58 | 2007–2020 |
| RETANA ALVARO Eself | 10 | 2012–2017 |
| WHITE RUSSELL I | 6 | 2011–2015 |
| RETANA ALVAROself | 4 | 2013–2015 |
| RETANA ALVARO ENRIQUEself | 4 | 2011–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Raleigh, NC, US | 51 | 2008–2020 |
| Morrisville, NC, US | 8 | 2007–2012 |
| Cary, NC, US | 1 | 2011 |
| RTP, NC, US | 1 | 2009 |