摘要:
Provided are a hardware device and a method for creating and managing socket information serving as a connection with a network protocol hierarchy in a network application program. The hardware device includes a TCP transmission processor for processing commands on requests for creating and eliminating a socket of a predetermined network program in response to the requests for creating and eliminating a socket, a TCP reception processor for creating a search signal for a corresponding socket identification when a new packet is received, a socket management unit for creating and eliminating a socket ID upon a command from the TCP transmission processor, and searching the socket ID and providing the socket ID to the TCP transmission processor upon a command from the TCP reception processor, and a memory unit for storing the socket information, and providing the socket information to the TCP reception processor.
摘要:
Provided are a hardware device and a method for creating and managing socket information serving as a connection with a network protocol hierarchy in a network application program. The hardware device includes a TCP transmission processor for processing commands on requests for creating and eliminating a socket of a predetermined network program in response to the requests for creating and eliminating a socket, a TCP reception processor for creating a search signal for a corresponding socket identification when a new packet is received, a socket management unit for creating and eliminating a socket ID upon a command from the TCP transmission processor, and searching the socket ID and providing the socket ID to the TCP transmission processor upon a command from the TCP reception processor, and a memory unit for storing the socket information, and providing the socket information to the TCP reception processor.
摘要:
Provided is an apparatus and a method for creating and managing Transmission Control Protocol (TCP) transmission information based on a TCP Offload Engine (TOE). The apparatus includes: a TCP transmission processing unit for receiving a data transmission request from a predetermined network program, creating transmission information and deleting the transmission information; a TCP reception processing unit for receiving a reception command of the data, creating and managing the reception information; a transmission information region managing unit for allocating memory regions for storing the transmission information according to a command of the TCP transmission processing unit, creating an identification (ID) of each region, and managing a deleting process; and a storing unit for storing and deleting the transmission information according to control of the TCP transmission processing unit.
摘要:
Provided are a TCP offload engine (TOE) apparatus and method for static file transmission. An apparatus for system call processing for static file transmission includes an application program block for generating a file transmission command upon a user's file transmission request, a BSD socket module for converting the file transmission command of a file unit into a division transmission command for division-transmission of a certain size unit, a TOE kernel module for receiving the division transmission command and converting the division transmission command into a TOE control command, and a TOE apparatus module for generating a data packet of the certain size for network transmission in response to the TOE control command and transmitting the data packet to a node having requested file transmission.
摘要:
In a first-in first-out memory circuit using a standard cell library memory, a memory block includes N number of memories (N>1). A read pointer designates read addresses of the N number of memories. A write pointer designates write addresses of the N number of memories. A memory controller selects one from the N number of memories based on the read/write addresses, generates n number of read/write clock signals by demultiplying a clock signal by n (n=N, n>1) and sends the n number of read/write clock signals having a 1/n cycle difference to the N number of memories thereby inputting/outputting data.
摘要:
Provided is an apparatus for detection timeout of each channel, which is a socket connection, in a Transmission Control Protocol (TCP) Offload Engine (TOE) using TCP accelerating hardware, and a method thereof. The timer managing apparatus of the TOE using the TCP accelerating hardware, including: a command register for receiving a command for a retransmission timer or a delayed ACK timer from an embedded processor of the TOE; a finite state machine (FSM) for storing information of a timer in operation by analyzing the command for the retransmission timer or the delayed ACK timer stored in the command register and controlling an entire operation of the timer managing apparatus; and a timeout checker for checking timeout of a timer in operation by using the stored timer information and notifying the timeout to the FSM.
摘要:
Provided is a system and method for updating a plurality of the same files consistently. The file update system comprises a first and a second data servers formed as pipe line type network for storing an original file and a duplicate file of the original file respectively, and for updating both the original file and the duplicate file in response to an update request, wherein the first and the second data servers mutually exchange file update information, correct the file update information so as to prevent overlapped update due to a plurality of update requests for the same file, and then update the original file or the duplicate file according to the corrected file update information.
摘要:
Provided are a network scheduler and a network scheduling method capable of effectively managing network bandwidths by selectively supporting a work conserving mode to network entities by using an improved token bucket scheme. The network scheduler selectively supports a work conserving mode to network scheduling units (NSUs) serving as network entities by using a token bucket scheme, such that the network scheduler ensures an allocated network bandwidth or enables the NSUs to use a remaining bandwidth. The network scheduler manages the NSUs by classifying the NSUs into a green state, a red state, a yellow state, and a black state according to a token value, a selection/non-selection of the work conserving mode, and an existence/non-existence of the packet request to be processed.
摘要:
An apparatus for searching a socket ID of a received packet in a transmission control protocol (TCP) and a user datagram protocol (UDP) is provided. The apparatus includes: a master module, a branch table module and a tree table module. The master module analyzes command information from a processor, transfers commands to the branch table module and to the tree table module, receives results from the branch table module and from the tree table module, and reports the received results to the processor. The branch table module receives commands from the master module and manages a branch table by using only the lower 10 bits of a simple internet protocol (IP) address of the commands. The tree table module is coupled to the master module and to the branch table module, in which the tree table module manages a binary tree.
摘要:
Provided are a high-performance wrapper circuit for a globally asynchronous locally synchronous (GALS) system and a synchronization method using the same, which are capable of solving a synchronization problem caused when data are transmitted between locally synchronous modules employing different clocks, and a method for operating the wrapper circuit. The GALS system includes a clock generator for supplying an operation clock to a locally synchronous module, a sender port for transmitting data to the outside according to a data transmission request signal output from the locally synchronous module, and generating a first clock stop signal for stopping an operation of the clock generator, and a receiver port for receiving data from the outside, and generating a second clock stop signal for stopping the operation of the clock generator. The sender port generates the first clock stop signal to the clock generator when a next data transmission request signal is received before completing a data transmission performed by a previous data transmission request signal output from the locally synchronous module.