Abstract: A computing system may comprise an accelerator that transfers the data units between a first and a second virtual machine resident on the same computing system. An abstraction block may comprise a first memory and a second memory. The abstraction block may generate a first signal in response to storing the data units in the first memory. The accelerator may transfer the data units from the first memory to the second memory in response to receiving the first signal. The accelerator may generate a second signal indicating the completion of transfer of data units from the first memory to the second memory. The abstraction block may then cause the data units to be transferred to a second virtual machine from the second memory.

Abstract: A network device may determine the presence of one or more strings corresponding to a regular expression. The network device may comprise a CAM that may generate entries corresponding to the regular expression based on a tree structure representing the regular expression. The CAM may optimize the size of the memory and the computational resources based on assigning states that differ by one bit to each node of the tree and by using a content matchable memory (CMM) to detect the presence of several occurrences of a substring in a reduced number of comparisons.

Abstract: Methods for performing exact search string matches in the data plane of a network processor. The methods employ a two-stage string search mechanism to identify the existence of a search string from a set S in a packet payload. A first pre-processing stage identifies a potential search string match and a second analysis stage determines whether the first stage match corresponds to an exact string match. The first stage is implemented using hash values derived from at least one of search strings in set S or sub-strings of those search strings. In one embodiment, a plurality of Bloom filters are used to perform the first pre-processing stage, while in other embodiments various CAM-based technique are used. Various TCAM-based schemes are disclosed for performing the second analysis stage. The methods enable packet payloads to be searched for search strings at line-rate speeds.

Abstract: A network device to determine the presence of one or more of the pre-defined strings in a message based on searching for a suffix and a reverse prefix in response to receiving a key search data indicating possible presence of any of the plurality of pre-defined strings. The network device indicates the presence or absence of one or more of the pre-defined strings in the message based on the suffix and prefix search results.

Abstract: A network device comprising a content addressable memory (CAM), based on partitioning and the hole-filling technique, may utilize substantially less power by switching ON only the partitions that are being used. Also, the CAM may quickly add one or more new entries into the memory by consuming substantially less amount of time while updating the entries.

Abstract: Apparatus and systems, as well as methods and articles, may operate to propagate an access control rule throughout a bridged network as part of a generic attribute registration protocol.

Abstract: In one embodiment, a method comprises receiving, in a network node, a control packet, determining, from data in the control packet, a time slot range request, encoding the time slot range request into a search data set comprising one or more elements expressed in ternary form, and searching an addressable memory module using one or more of the elements in the search data set as a search key.