Abstract: Network devices, systems, and methods are provided involving item routing management. One embodiment includes a computing device item routing management having a number of queues and a logic component. The number of queues can hold a number of items to be routed, via a routing path within the computing device, at least one of the items having time information associated therewith. The logic component can review at least one of the number of items held within the queue based upon the time information to determine whether to discard the item.

Abstract: A network device for sampling a packet. The network device comprises a processor. The network device also comprises an input interface for receiving a plurality of packets, wherein the input interface comprises at least one input port. At least one input port is configured to sample at least one input packet and transmit a sampled input packet to the processor. The network device also comprises an output interface for transmitting a plurality of packets, wherein the output interface comprises at least one output port. At least one output port is configured to sample at least one output packet and transmit a sampled output packet to the processor. The network device also comprises a switching fabric coupled to the input interface and the output interface, wherein the switching fabric is configured to transmit a packet between the input interface and the output interface.

Abstract: Apparatus is disclosed for producing an output clock signal that is selectively synchronized to one of two generally free-running input clock signals that may be of the same or different frequency and phase. The apparatus is adapted to switch between the two input clock signals in a manner whereby the output clock signal does not have any clock pulses that are shrunk or narrowed.