H3C视频监控平台板卷厂EC2004编码器视频码流丢失优化调整.doc

H3C视频监控平台板卷厂EC2004编码器视频码流丢失优化调整通过对全厂H3C视频编码器实时图像的监控我们发现，各分厂视频流运行都是比较平稳，基本没有出现视频流的丢失，但板卷厂的几台编码器视频丢帧比较严重。一：测试步骤首先通过对网络拓扑的分析来判断数据流量丢失的节点，通过PING大包来判断数据丢包的节点。第一节点：1：ping 172.18.150.241Pinging 172.18.150.241 with 8000 bytes of data:Reply from 172.18.150.241: bytes=8000 time=17ms TTL=250Reply from 172.18.150.241: bytes=8000 time=15ms TTL=250Reply from 172.18.150.241: bytes=8000 time=17ms TTL=250Reply from 172.18.150.241: bytes=8000 time=15ms TTL=250Ping statistics for 172.18.150.241: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds: Minimum = 15ms, Maximum = 17ms, Average = 16ms2:ping 172.18.150.241Pinging 172.18.150.241 with 9000 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 172.18.150.241:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),第二节点：通过优化是可以使编码器减少丢帧。一号转炉优化前后图如下：1：ping 172.18.150.248Pinging 172.18.150.248 with 9000 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 172.18.150.248: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),2：ping 172.18.150.248Pinging 172.18.150.248 with 8000 bytes of data:Reply from 172.18.150.248: bytes=8000 time=36ms TTL=250Reply from 172.18.150.248: bytes=8000 time=34ms TTL=250Reply from 172.18.150.248: bytes=8000 time=33ms TTL=250Reply from 172.18.150.248: bytes=8000 time=34ms TTL=250Ping statistics for 172.18.150.248: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 33ms, Maximum = 36ms, Average = 34ms第三节点：已经不能接入H3C视频编码器，所以2号精炼炉链路需要改造。1：ping 172.18.150.247ping 172.18.150.247 -l 9000Pinging 172.18.150.247 with 9000 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 172.18.150.247: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Pinging 172.18.150.247 with 8000 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 172.18.150.247:Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Pinging 172.18.150.247 with 4000 bytes of data:Request timed out.Request timed out.Request timed out.Request timed out.Ping statistics for 172.18.150.247: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),Pinging 172.18.150.247 with 1000 bytes of data:Request timed out.Request timed out.Reply from 172.18.150.247: bytes=1000 time=3ms TTL=250Reply from 172.18.150.247: bytes=1000 time=3ms TTL=250Ping statistics for 172.18.150.247: Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),Approximate round trip times in milli-seconds: Minimum = 3ms, Maximum = 3ms, Average = 3ms编码器丢包75%。所以到这个节点接入的编码器通过软件优化已经没有实际意义。Pinging 172.18.150.218 with 1000 bytes of data:Request timed out.Request timed out.Reply from 172.18.150.218: bytes=1000 time=2ms TTL=59Request timed out.Ping statistics for 172.18.150.218: Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),Approximate round trip times in milli-seconds: Minimum = 2ms, Maximum = 2ms, Average = 2ms拓扑图：第二步骤：通过以上数据分析，越往下行，链路数据堵塞越来越严重。在转炉操作室接入的编码器与H3C维护中心技术人员联系，可以通过优化视频码流来调整视频质量。站点名称带宽