Method and apparatus for transmitting quickly operation, management and maintenance cell

Abstract

The disclosed method for fast transmitting OAM cell comprises: after the system receives at least one full cell, the ATM cell buffer control module reads the cell head message to obtain its permanent PVC channel number and attribution message; different to common cell, for OAM cell, when there is idle storage block in special room of RAM, extracting an idle storage block pointer from the OAM cellmanagement module, storing the cell in the storage block, and building relation between the attributed PVC channel and the pointer; when it comes the transmission time slot, the ATM cell transmissioncontrol module obtains the PVC channel number, and reads the cell for transmitting when querying there is cell in the channel. There invention guarantees the transmission PRI for OAM cell.

Description

technical field [0001] The invention relates to ATM (Asynchronous Transfer Mode, asynchronous transfer mode) network OAM (Operations Administration and Maintenance, operation, management and maintenance) cell transmission technology, in particular to a method and device for quickly sending operation, management and maintenance cells. Background technique [0002] With the development of computing technology, various data transmission networks have emerged. At present, there are mainly two types of networks, one is the packet-based IP (Internet Protocol) packet network, and the other is the cell-based ATM network. In an ATM network, the OAM cells used for operation, management and maintenance have a higher priority and need to be sent first in the sending scheduling process. [0003] At present, the main method for processing OAM cells is that OAM cells and ordinary ATM cells are stored in the same FIFO (First-In and First-Out) queue. The advantage of this method is that it s...

AI Technical Summary

Problems solved by technology

[0003] At present, the main method for processing OAM cells is that OAM cells and ordinary ATM cells are stored in the same FIFO (First-In and First-Out) queue. The advantage of this method is that it saves storage space and is easy to operate. However, the OAM cells that enter the FIFO queue later can only be sent out after waiting for the ordinary ATM cells that entered the queue to be transmitted first, which increases the delay of OAM cells.

Images