Efficient pruning of virtual services in bridged computer networks

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7894342
APP PUB NO 20100220730A1
SERIAL NO

12394924

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In one embodiment, a bridge in a computer network may execute a spanning tree protocol (STP) for network topology and a registration protocol for traffic control of virtual connections (e.g., EVCs) at the bridge. For any gateway ports of the bridge inter-connected with a provider network, the bridge may generate “fake” received registration protocol join messages for a particular virtual connection at the gateway port. The bridge may then either i) propagate the join messages, in response to the gateway port being in a forwarding state according to the STP, on other forwarding ports of the bridge, or ii) in response to the gateway port not being in a forwarding state, block propagation of the join messages to other ports of the bridge.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

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

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finn, Norman W Livermore, US 77 2765
Mehta, Munish Fremont, US 11 111
Yang, Yibin San Jose, US 70 272

Cited Art Landscape

Patent Info (Count) # Cites Year
 
YAZAKI CORPORATION (1)
* 2008/0239,957 Ransmission Capacity Allocation Method, Communications Network, and Network Resource Management Device 60 2004
 
Other [Check patent profile for assignment information] (1)
* 2005/0220,054 Wireless local area network context control protocol 45 2005
 
CISCO TECHNOLOGY, INC. (23)
6385203 Communication server apparatus and method 104 1998
6445715 Dynamic trunk protocol 23 1998
6304575 Token ring spanning tree protocol 108 1998
6333931 Method and apparatus for interconnecting a circuit-switched telephony network and a packet-switched data network, and applications thereof 310 1998
6515963 Per-flow dynamic buffer management 87 1999
6636499 Apparatus and method for cluster network device discovery 117 1999
6898189 Restartable spanning tree for high availability network systems 55 2000
6937576 Multiple instance spanning tree protocol 117 2000
7061858 High availability architecture for network devices 83 2000
7177946 Optimal sync for rapid spanning tree protocol 37 2001
7466710 Managing packet voice networks using a virtual entity approach 28 2002
6976088 Method and apparatus for rapidly reconfiguring bridged networks using a spanning tree algorithm 30 2002
7292581 Large-scale layer 2 metropolitan area network 26 2002
7180899 Multi-tiered Virtual Local area Network (VLAN) domain mapping mechanism 35 2002
7293080 Automatically discovering management information about services in a communication network 35 2003
7268690 Industrial ethernet switch 9 2003
7447147 Ethernet switch with configurable alarms 28 2003
7480258 Cross stack rapid transition protocol 92 2003
2006/0245,436 Comprehensive model for VPLS 41 2005
2007/0110,024 System and method for spanning tree cross routes 43 2005
* 2007/0263,554 Technique for efficiently managing bandwidth registration for multiple spanning tree options 82 2006
* 2007/0263,640 Technique for efficiently managing bandwidth for multipoint-to-multipoint services in a provider network 35 2006
7471674 Method and system of control signaling for a wireless access network 2 2007
 
ALCATEL LUCENT (1)
* 2007/0211,737 Method and Network Element Configured for Limiting the Number Virtual Local Area Networks Creatable by GVRP 3 2006
 
CISCO SYSTEMS, INC. (2)
7061875 Spanning tree loop guard 43 2001
7460492 Spanning tree loop guard 14 2006
 
YIPES ENTERPRISE SERVICES, INC. (1)
* 2008/0175,239 Multicast wide-area network for distributing data to selected destinations with limited or no replication 59 2007
 
PROVENANCE ASSET GROUP LLC (1)
* 2006/0007,867 Domain configuration in an ethernet OAM network having multiple levels 29 2004
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ECI TELECOM LTD. (1)
* 2010/0309,821 METHOD AND NETWORK FOR COMBINED PROTECTION OF ETHERNET TRAFFIC 3 2010
 
CISCO TECHNOLOGY, INC. (1)
* 2011/0096,784 Controlled Propagation of VLAN Declarations 1 2009
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 22, 2018
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 22, 2022
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00