摘要:
A system for managing circuit emulation service over an Asynchronous Transfer Mode (ATM) network is provided. The system includes control logic configured to receive channelized circuit data from a client, the channelized circuit data being transmitted at an arbitrary rate. The channelized circuit data is formatted into one or more ATM cells. Each ATM cell has a payload. The payload has a number of octets and corresponding validity fields. Each validity field is used to indicate whether the associated octet contains valid data. The one or more ATM cells are transmitted across the ATM network. By examining the validity fields, the transmission of the one or more ATM cells effectively results in transmission of the channelized circuit data at the arbitrary rate over the ATM network. The arbitrary rate is not a multiple of a fundamental rate.
摘要:
A plurality of packets are received at a receiver. The plurality of packets are sent in a first ordering from a transmitter and received in a second ordering. The second ordering is different from the first ordering. The packets, when they were sent, are assigned sequence numbers based on the first ordering. As each of the plurality of packets is received in the second ordering, a packet is written to a buffer position in a buffer based on the sequence number associated with the packet. The writes to the buffer positions are out of order or in a non-sequential order as compared to a sequential ordering of buffer positions in the buffer. Packets are then read from the buffer in a sequential order. As packets are read from the buffer, they are read in the first ordering that the packets were sent in.
摘要:
A method is provided for synchronizing circuit related objects between a network management system (NMS) and a network control processor (NCP). In one example, the method translates data for the circuit related objects from binary data to ASCII data in the network control processor. The ASCII is received into the network management system server from the network control processor. The ASCII data is parsed. The ASCII data is then stored in a network management system database.
摘要:
Techniques for sending and receiving alarm signals over packet-based communication networks are provided. A system for detecting alarm signals on a multiplexed communication line and generating data packets with alarm information is provided. Additionally, a system is provided for receiving data packets with alarm information and generating alarm signals based upon the alarm information of the data packets. The system optionally monitors a connection to a communication network and the status of one or more nodes coupled with the communication network and generates data packets or alarm signals if predetermined conditions are detected.
摘要:
A method and apparatus are provided for frame packing for nodes in a network. In one example, the method includes receiving packet streams from network nodes; parsing the packet streams into individual calls; grouping the individual calls having the same destined node together into grouped calls; packing the grouped calls into single packets; and sending the single packets to the destined nodes.
摘要:
A synchronous serial bus features a variable data size format and an in-line addressing and data architecture. Flexible addressing allows for a variety of slave devices and configurations. Frequent parity checking during a transaction allows for faster error recovery. Repeater devices connect multiple slaves to the master using only point-to-point physical connections, thus providing multidrop architecture while at the same time ensuring excellent signal integrity and allowing a very high speed operation.
摘要:
A bit slice data path design is provided. Multiple chips are coupled to a data bus and configured to process a slice of data for the data bus. One chip in the design is designated as a master chip and the other chips are designated as slaves. A master chip sends a signal from a first time domain to a second time domain through a synchronization circuit. When the signal has been synchronized to the frequency of the second time domain, the signal is sent to the slave chips through a connection. The signal is also looped back to the second time domain in the master chip so that the signal reaches the second time domain in the master and slave chips in the same clock cycle.
摘要:
A system and method are provided for managing configuration inconsistencies between a network management system (NMS) and network elements (NEs). In one example, the system includes a user interface, which includes an object field configured to identify database objects of the network management system, wherein each database object corresponds to a network element; a network device field configured to identify a top level network device that contains the network element; a status field configured to display a database object state, wherein the database object state represents a relationship between the database object configuration and the network element configuration; and an input mechanism configured to issue a command to edit one of network element values and database object values.
摘要:
A boot-up operation system is provided. In one exemplary embodiment, the system includes a CPU, a bootstrap memory, a boot memory, a main memory, an I/O port and CPU operating system code. When the system is turned on, the CPU executes the bootstrap program which directs it to determine whether the boot memory contains the necessary code to perform the boot-up operation. If the boot memory contents are usable for boot-up operation, the CPU starts executing a boot program that is stored in the boot memory. If the boot memory contents are not usable for boot-up operation, the bootstrap program directs the CPU to download a copy of the CPU operating system code from outside the system using the I/O port. After the download, the CPU stores a copy of the downloaded operating system code and the boot program into the boot memory for future use.
摘要:
An apparatus and method are provided for transmitting data using synchronous dynamic random access memory (SDRAM). In example, the method includes writes data using a first set of SDRAM banks. Data is written using a second set of SDRAM banks, wherein the first set of SDRAM banks and the second set of SDRAM banks write interleaved. Data is read using a third set of SDRAM banks. Data is read using a fourth set of SDRAM banks, wherein the fourth set of SDRAM banks and the third set of SDRAM banks read interleaved.