1
Tom Edsall, Norman Finn: Interswitch link mechanism for connecting high-performance network switches. Cisco Systems, Cesari and McKenna, April 21, 1998: US05742604 (332 worldwide citation)

An encapsulation mechanism efficiently transports packets between ports of different switches in a network on the basis of, inter alia, virtual local area network (VLAN) associations among those ports. The switches are preferably interconnected by a novel interswitch link (ISL) mechanism that append ...


2
Robert Beach, Mark Bryers, Casey Cox, Richard Fall, Norman Finn, Douglas Laird: Protocol processor. Ultra Network Technologies, Blakely Sokoloff Taylor & Zafman, October 15, 1991: US05058110 (175 worldwide citation)

A computer network method and apparatus. The present invention comprises a computer network having one or more hubs, each hub comprising one or more connection means for connection of computing devices to the network. Each connection means comprising a first interface means for coupling with a compu ...


3
Sanjeev Rampal, Jimmy Ervin, Norman Finn, Michael Smith: Method and system for transporting data using pseudowire circuits over a bridged network. Cisco Technology, Cindy Kaplan, August 24, 2010: US07782841 (14 worldwide citation)

A method for data communication across a layer 2 bridged network having two or more edge nodes configured for receiving and transmitting multiprotocol data packets. The method includes creating a pseudowire circuit across the bridged network, receiving data packets at one of the edge nodes, encapsul ...


4
Ali Sajassi, Norman Finn, Francois Tallet: Loop mitigation mechanism for ethernet networks. Cisco Technology, March 25, 2014: US08681641 (6 worldwide citation)

A technique is provided for mitigating loops in Ethernet networks. A first port in an Ethernet device receives an Ethernet frame. The frame includes a source identifier, a destination identifier, and a Virtual Local Area Network Identifier (VLAN ID). According to various embodiments, the VLAN ID (VI ...


5
Norman Finn: Methods and devices for improving the multiple spanning tree protocol. Cisco Technology, Weaver Austin Villeneuve & Sampson, February 15, 2011: US07889681 (3 worldwide citation)

The present invention provides improved unicast routing, multicast routing and unicast load sharing as compared with conventional methods. Preferred implementations of the invention provide improvements to IEEE 802.1Q. According to preferred aspects of the invention, each bridge is the root of its o ...


6
Norman Finn, Samer Salam, Ali Sajassi: Transmitting network information using link or port aggregation protocols. Cisco Technology, Cindy Kaplan, September 16, 2014: US08839023 (2 worldwide citation)

In one embodiment, a method includes receiving at a network device, a packet from a component in a virtual network device, the packet transmitted across a link aggregation bundle connecting the virtual network device to the network device and indicating if the component is a master component in the ...


7
Chiajen Tsai, Norman Finn, Yibin Yang, Nagabhushan K Channabasappa, Debashis Patnala Rao: Transient unpruning for faster layer-two convergence. Cisco Technology, Baker Botts L, August 19, 2014: US08812708 (2 worldwide citation)

In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast m ...


8
Sudarshana K S, Vinutha Mohan Rao, M Radhakrishna Rao, Norman Finn: Detecting VLAN registration protocol capability of a switch in a computer network. Cisco Technology, Polsinelli PC, July 19, 2016: US09397858 (1 worldwide citation)

In particular embodiments, a first switch implementing a first virtual local area network (VLAN) registration protocol and connected to a first end of the trunk detects whether a second switch connected to a second end of the trunk implements the first VLAN registration protocol. In an embodiment, t ...


9
Norman Finn: Methods and devices for policing traffic flows in a network. Cisco Technology, Meunier Carlin & Curfman, July 3, 2018: US10015699

Devices and methods for policing traffic flows in a network are described herein. For example, a network device can include a processing unit and a memory operably coupled to the processing unit. The network device can be configured to provide an input port and an output port, the input and output p ...


10
Chiajen Tsai, Norman Finn, Yibin Yang, Nagabhushan K Channabasappa, Debashis Patnala Rao: Transient unpruning for faster layer-two convergence. Cisco Technology, Baker Botts L, August 21, 2018: US10057120

In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to multiple nodes in the network. The message is configured to instruct each of the nodes receiving the message to start a phase timer in response to the broadcast ...