Aiming at the actual requirements of radio and television system,this paper designs and realized a set of lP switching system which based on the lntel's network processor lXP465,the Ethernet switching chip KS8895 and the Freescale's chip MPC8309.The application results show that the system has good communication speed and stability,and achieves the de-sired design requirements.%伴随着经济的发展和人们对电视节目要求的提高,数字电视技术得到了飞速发展,同时也提出了新的技术要求,基带数字码流(TS流)信号贯穿整个数字电视系统。针对广电系统的实际应用需求,设计并实现了一套基于lntel公司的网络处理器lXP465、以太网交换芯片KS8895以及Freescale公司的PPC处理器MPC8309的lP切换系统。测试结果表明,该系统有具有良好的通信速度及稳定性,达到了预期的设计要求。
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