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| Number | Title | Issue Date |
| 8160080 | Implementation of reliable synchronization of distributed databases A method of controlling a plurality of forwarding databases provided in an Ethernet bridge having a plurality of devices. The method includes aging a first set of entries in a first forwarding database maintained by a first one of the plurality of devices. The first... | 04/17/2012 |
| 8077608 | Quality of service marking techniques A network device adapted to process data packet traffic over a telecommunication network. The network device includes an ingress pipeline adapted to receive a data packet at a port of the network device. According to embodiments of the present invention, the data pa... | 12/13/2011 |
| 7920564 | Differential services support for control traffic from privileged nodes in IP networks A network device receives a packet at a network interface and determines whether the packet represents control traffic. The network device also determines whether the packet is received from a privileged node. To achieve this, a source address is extracted from the ... | 04/05/2011 |
| 7888990 | Phase locked loop charge pump reference current bootstrapping A phase locked loop with a charge pump circuit has increased stability and phase margin. The charge pump circuit feeds back its voltage output to generate a reference current. In one embodiment, the charge pump circuit comprises a current generator responsive to a c... | 02/15/2011 |
| 7881221 | Hardware implementation of network testing and performance monitoring in a network device An embodiment of the present invention offloads the generation and monitoring of test packets from a Central processing Unit (CPU) to a dedicated network integrated circuit, such as a router, bridge or switch chip associated with the CPU. The CPU may download test r... | 02/01/2011 |
| 7852850 | Double-hash lookup mechanism for searching addresses in a network device A hash function is applied to a set of data to generate a hash. A first subset of the hash is used to lookup an entry in a lookup table for a forwarding database. A second subset of the hash is used to identify, within the entry, data comprising an offset. The offse... | 12/14/2010 |
| 7830873 | Implementation of distributed traffic rate limiters A method of processing packets and a network device are disclosed. Packets are received from separate ingress processing pipelines during a processing cycle. Control information for each packet is retrieved from one or more databases serving each pipeline and used t... | 11/09/2010 |
| 7697422 | Quality of service marking techniques A network device adapted to process data packet traffic over a telecommunication network. The network device includes an ingress pipeline adapted to receive a data packet at a port of the network device. According to embodiments of the present invention, the data pa... | 04/13/2010 |
| 7668107 | Hardware implementation of network testing and performance monitoring in a network device An embodiment of the present invention offloads the generation and monitoring of test packets from a Central processing Unit (CPU) to a dedicated network integrated circuit, such as a router, bridge or switch chip associated with the CPU. The CPU may download test r... | 02/23/2010 |
| 7652516 | Apparatus and method for generating a clock signal A apparatus and method are disclosed for generating one or more clock signals. A clock signal is generated based on pattern signals and a reference clock signal. When the reference clock signal transitions high, the state of a first pattern signal is output, and whe... | 01/26/2010 |
| 7557625 | Phase locked loop charge pump reference current bootstrapping A phase locked loop with a charge pump circuit has increased stability and phase margin. The charge pump circuit feeds back its voltage output to generate a reference current. In one embodiment, the charge pump circuit comprises a current generator responsive to a c... | 07/07/2009 |
