摘要
针对应用层组播报文转发的特点,提出了一种能够提高应用层组播转发速率的新机制。该机制降低了应用层组播报文从主机内存到网卡缓冲区之间数据复制的次数,节省了CPU处理开销。理论分析表明该机制能够降低应用层组播延迟和提高应用层组播转发速率。实验验证了该机制的可行性与有效性。
Based on the characteristics of packet forwarding in application layer multicast(ALM),this paper proposes a high performance multicast mechanism,in which a NIC-based multicast mechanism is used to send multiple replicas of an ALM packet to different destinations with less CPU intermediation in comparison to the traditional host-based multicast mechanism.By adopting the mechanism,the CPU overhead and the number of times data packets are copied from host memory to NIC buffer.Theoretical analysis indicates tha...
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
2008年第2期51-55,共5页
Journal of National University of Defense Technology
基金
国家自然科学基金重点资助项目(90604006)
国家部委资助项目
关键词
应用层组播
转发速率
网卡
延迟
代理服务器
application layer multicast
forwarding throughput
NIC
delay
proxy
