1
Mohan Kalkunte, Jayant Kadambi, Shashank Merchant: Apparatus and method in a network switch for dynamically allocating bandwidth in ethernet workgroup switches. Advanced Micro Devices, August 22, 2000: US06108306 (175 worldwide citation)

A network switch having switch ports for full-duplex communication of data packets with respective network nodes according to IEEE 802.3 protocol dynamically allocates bandwidth between the switch ports based upon detected activity from the network nodes. The network switch generates an assigned ban ...


2
Bahadir Erimli, Robert Williams, Shashank Merchant: Method and apparatus for controlling the flow of data frames through a network switch on a port-by-port basis. June 11, 2002: US06405258 (80 worldwide citation)

An apparatus and method are disclosed for regulating the flow of data between plural network stations through a network switch. A receive port functions to receive data frames from a first network station, and a transmit port outputs the received data frames to a second network station. A programmab ...


3
Mohan Kalkunte, Jayant Kadambi, Jim Mangin, Shashank Merchant: Method and apparatus for prioritizing traffic in half-duplex networks. Advanced Micro Devices, December 22, 1998: US05852723 (62 worldwide citation)

Collision delay intervals are modified in Ethernet network devices transmitting priority data requiring a guaranteed latency by multiplying an integer multiple number of slot times with a fractional coefficient. A network device having priority data for transmission uses the conventional Truncated B ...


4
Shashank Merchant, Robert Williams: Multiport network switch supporting multiple VLANs per port. Advanced Micro Devices, August 10, 2004: US06775290 (55 worldwide citation)

A novel method of enabling a port of a network switch to support connections with multiple VLANs. The method comprises storing VLAN data indicating a plurality of VLAN identifiers corresponding to the multiple VLANs supported by the port. A VLAN identifier of a data packet received via the port is c ...


5
John M Chiang, Shashank Merchant: Pipelined access to address table in a network switch. Advanced Micro Devices, November 2, 2004: US06813266 (54 worldwide citation)

A network switch configured for switching data packets across multiple ports uses decision making logic to generate frame forwarding information. The decision making logic employs a pipelined architecture that enables multiple data frames to be processed simultaneously to increase data throughput. T ...


6
Shashank Merchant, Robert Williams, John M Chiang, Ching Yu: Method and apparatus in a network switch for handling link failure and link recovery in a trunked data path. Advanced Micro Devices, March 18, 2003: US06535489 (53 worldwide citation)

A network switch configured for switching data packets across multiple ports and for supporting trunked data paths uses an address table to generate frame forwarding information. When a link in a trunked data path experiences a change in its operating status, the trunk data path is reconfigured to r ...


7
Robert A Williams, Bahadir Erimli, Shashank Merchant: Method and apparatus for manipulating VLAN tags. Advanced Micro Devices, February 4, 2003: US06515993 (40 worldwide citation)

An integrated multiport switch operating in a packet switched network provides the capability to alter VLAN tags on a port by port basis. An internal rules checker (IRC) analyzes the header of a data frame to determine the frame type: untagged, VLAN-tagged, or priority-tagged. The IRC searches the u ...


8
Jim Mangin, Shashank Merchant, Mohan Kalkunte: Arrangement for initiating and maintaining flow control in shared-medium, full-duplex, and switched networks. Advanced Micro Devices, May 18, 1999: US05905870 (39 worldwide citation)

Flow control signals in half-duplex and full-duplex networks are initiated and maintained based on the detected number of data bytes stored in a receive buffer from payload data of received data packets. If the number of stored data bytes exceeds a predetermined threshold, the network interface init ...


9
Shashank Merchant, Robert Williams: Network switch multiple-port sniffing. Advanced Micro Devices, April 11, 2006: US07027437 (38 worldwide citation)

A novel system and method of monitoring network activity in a network switching system having multiple ports for receiving and transmitting data packets, and a decision making engine for controlling data forwarding between the ports. Data blocks representing received data packets are placed in data ...


10
Mohan V Kalkunte, Shashank Merchant, Phil Simons: Servicing priority traffic in multiport network switch. Advanced Micro Devices, June 1, 2004: US06744776 (37 worldwide citation)

A novel method of servicing multiple data queues having different priorities is provided in a network switch. A dequeuing logic circuit services the data queues in a round-robin fashion. Programmable number of data packets is selected from each data queue in each cycle. The dequeuing logic circuit c ...



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