摘要
MPEG2编码的视音频TS流直接封装在UDP的组播数据包中,通过IP承载网发送给接收用户,组播协议PIM-SM通过生成(*,G)和(S,G)表项实现RPT/SPT转发组播数据包,TCAM结构支持系统的硬件转发。系统实现在园区网内IPTV的组播方式转发,满足用户需求的同时对网络系统本身无影响。
TS traffic encoded with MPEG2 is encapsulated in muhicast packet of UDP, sending ers over IP network. Through matching （ ＊ , G） and （ S, G） lists following RPT/SPT, multicast forwarding by PIM -SM . Hardware Forwarding is supported by TCAM o The system achieve muhicast in campus network, influence. Fulfilling to receiv- packets is IPTV with the requirement of users, simultaneously, the network system has no
出处
《中国传媒大学学报（自然科学版）》
2013年第4期22-26,共5页
Journal of Communication University of China：Science and Technology
