| 摘要 |
PURPOSE:To efficiently execute packet transmission between communication control processors in an ISDN switchboard. CONSTITUTION:The packet processor (PHM) 3 and the terminal stored equipment (SLIC) 4 of the communication control processors execute the packet transmission through a packet switch 1. The communication control processor is provided with a packet bus controller (PKBC) 5 and a PKBC control program (PBCC) 6. The PBCC 6 transits only the packet existing in the transmission queuing packet registration table of every packet highway registered in a transmission queue or the packet existing in the retransmission queuing packet registration table of every packet highway registered in a retransmission queue. |
