Traffic management and flow prioritization over multiple physical interfaces on a routed computer network

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6621791
SERIAL NO

09920381

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Per-flow fairness in routing devices operating with multiple physical-layer interfaces in which each active physical interface has an inherent transmission rate is disclosed for both normal and backlog conditions. A queuing module that is responsive to the transmission rates of the individual interfaces allocates transmission resources among interfaces and manages flows of incoming packets destined for transmission over different physical-layer interfaces. In the case of a backlog condition, flows are automatically delayed by an amount that depends on the priority of the flow. In other words, although traffic is limited during backlogged conditions, the limitation occurs in a manner consistent with weighting or other per-flow fairness criteria.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CISCO TECHNOLOGY, INC.SAN JOSE, CA14366

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Davie, Bruce Belmont, MA 23 195

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
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NATIONAL SEMICONDUCTOR CORPORATION (1)
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LUCENT TECHNOLOGIES INC. (2)
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5978356 Traffic shaper for network nodes and method thereof 58 1997
 
CISCO TECHNOLOGY, INC. (7)
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6034945 Method and apparatus for per traffic flow buffer management 69 1996
6175570 Method and an apparatus for shaping the output traffic in a fixed length cell switching network node 38 1996
6072773 Flow control for very bursty connections in high speed cell switching networks 52 1997
6320845 Traffic management and flow prioritization on a routed computer network 32 1998
6167445 Method and apparatus for defining and implementing high-level quality of service policies in computer networks 625 1998
6286052 Method and apparatus for identifying network data traffic flows and for applying quality of service treatments to the flows 197 1998
 
SIEMENS AKTIENGESELLSCHAFT (1)
5748614 Method for scheduling message cells leaving an ATM node 80 1996
 
LORAL FAIRCHILD CORPORATION (1)
5487061 System and method for providing multiple loss and service priorities 62 1994
 
XEROX CORPORATION (1)
6038217 Rate shaping in per-flow output queued routing mechanisms for available bit rate (ABR) service in networks having segmented ABR control loops 62 1997
 
MEDTRONIC, INC. (1)
* 5987356 Method and apparatus for diagnosis and treatment of arrhythmias 88 1998
 
AT&T CORP. (1)
* 6011775 Method and apparatus for integrated traffic shaping in a packet-switched network 53 1998
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTELLI7 (2)
* 2006/0026,679 System and method of characterizing and managing electronic traffic 155 2005
* 2006/0026,682 System and method of characterizing and managing electronic traffic 51 2005
 
WI-LAN INC. (4)
* 8817805 Apparatus, system and method for the transmission of data with different QoS attributes 0 2013
8867351 Apparatus, system and method for the transmission of data with different QoS attributes 0 2014
9426816 Apparatus, system and method for the transmission of data with different QoS attributes 0 2014
9603159 Apparatus, system and method for the transmission of data with different QoS attributes 0 2016
 
GLOBAL SUN TECHNOLOGY INC. (1)
* 2004/0249,917 Data flow management method 3 2003
 
CISCO TECHNOLOGY, INC. (4)
* 6920111 Multiple update frequencies for counters in a multi-level shaping system 3 2003
8699333 Congestion-based traffic shaping for distributed queuing in shared-media communication networks 3 2011
9602420 Schedule-based prioritization in contention-based shared-media computer networks 0 2013
9680760 Adaptive marking for WRED with intra-flow packet priorities in network queues 0 2013
 
JUNIPER NETWORKS, INC. (2)
* 7830889 Systems for scheduling the transmission of data in a network device 11 2003
* 2011/0019,544 SYSTEMS FOR SCHEDULING THE TRANSMISSION OF DATA IN A NETWORK DEVICE 4 2010
 
MICROSEMI FREQUENCY AND TIME CORPORATION (2)
* 7876788 Network time transfer 1 2005
* 2005/0190,797 Network time transfer 10 2005
 
FACEBOOK, INC. (3)
* 7362706 Method and apparatus for hierarchial scheduling of virtual paths with underutilized bandwidth 4 2002
* 2004/0114,517 Method and apparatus for hierarchial scheduling of virtual paths with underutilized bandwidth 1 2002
7660251 Method and apparatus for hierarchial scheduling of virtual paths with underutilized bandwidth 3 2008
 
LOCKHEED MARTIN CORPORATION (1)
* 2007/0002,740 Biasing of network node prioritization to improve per-hop behavior based on performance necessary for a packet to meet end-to-end QoS goals 19 2005
* Cited By Examiner