Patent application number | Description | Published |
20090034548 | Hardware Queue Management with Distributed Linking Information - A network element including a processor with logic for managing packet queues by way of packet descriptor index values that are mapped to addresses in the memory space of the packet descriptors. A linking memory is implemented in the same integrated circuit as the processor, and has entries corresponding to the descriptor index values. Each entry can store the next descriptor index in a packet queue, to form a linked list of packet descriptors. Queue manager logic receives push and pop requests from host applications, and updates the linking memory to maintain the queue. The queue manager logic also maintains a queue control register for each queue, including head and tail descriptor index values. | 02-05-2009 |
20090034549 | Managing Free Packet Descriptors in Packet-Based Communications - A network element including a processor with logic for managing packet queues including a queue of free packet descriptors. Upon the transmission of a packet by a host application, the packet descriptor for the transmitted packet is added to the free packet descriptor queue. If the new free packet descriptor resides in on-chip memory, relative to queue manager logic, it is added to the head of the free packet descriptor queue; if the new free packet descriptor resides in external memory, it is added to the tail of the free packet descriptor queue. Upon a packet descriptor being requested, by a host application, to be associated with valid data to be added to an active packet queue, the queue manager logic pops the packet descriptor currently at the head of the free descriptor queue. In this manner, packet descriptors in on-chip memory are preferentially used relative to packet descriptors in external memory, thus improving system performance. | 02-05-2009 |
20140369365 | Header Compression for Wireless Backhaul Systems - Systems and methods for header compression are described. In various implementations, these systems and methods may be applicable to wireless backhaul systems. For example, a method may include receiving a packet at a backhaul modem from an Ethernet switch, the packet having an uncompressed header comprising a concatenation of at least an Ethernet and an Internet Protocol (IP) header, and a payload; parsing the uncompressed header into a plurality of fields, the plurality of fields including a static field and a derivable field; removing the static field and the derivable field from the uncompressed header; adding a compressed field to the uncompressed header to create a compressed header; and transmitting the packet with the compressed header and the payload over a wireless link. | 12-18-2014 |