Introduction The Windows RTP Quality Monitor.pptVIP

Introduction：The Windows RTP Quality Monitor Speaker︰ Jui-Pang Chen Date︰ 2006/11/06 Instruction of RTP Monitor Using 『Windows RTP Quality Monitor』 1. Windows XP Driver Driver.zip 2. Windows monitor application guimonitor.zip commandline.zip Download webpage /projects/rtpmonitor Installation of Driver 1. Open the Control Panel 2. Click Network Connections 3. Right click on Local Area Connection and click on the Properties 4. Click the Install.. button Installation of Driver (Cont.) 5. Click on the Service and then click the Add button 6. Click the Have Disk. 7. choose the location of the driver A RTP GUI quality monitor Configuration Before using this monitor, please install the driver first. Open RTPMonitor.exe Explanation of nouns Fraction (分數)︰ Quality of RTP packet BYE (RTCP) ︰ 表示一個或多個media sources (SSRC or CSRC) 退出 SSRC (Synchronization Source) (RTP/RTCP) Meant to be globally unique within a session SR (Sender Report) (RTCP) Header Info Sender Info Receiver Report Blocks RR (Receiver Report) (RTCP) Issued by a participant who receivers RTP packets but does not send, or has not yet sent SDES (Source Description) (RTCP) Description related to a particular session participant CNAME (Must contain a canonical name) (RTCP) Explanation of nouns (Cont.) Jitter︰ Delay variation Calculation Jitter Si = 第i個RTP封包的timestamp Ri = 收到第i個RTP封包的時間 The deviation in transit time D(i,j) = (Rj-Ri)-(Sj-Si) = (Rj-Sj) - (Ri-Si) 每收到一個封包就計算 J(i) = J(i-1) + (| D(i-1,i) | - J(i-1))/16 會被包含在SR和RR Color of traffic status light Green: Indicate that the current traffic quality is good. (The fraction is below 10%) Yellow: Indicate that the current traffic quality is ok. (The fraction is between 10% and 30%) Red: Indicate that the current traffic quality is bad. (The fraction is higher than 30%) White: The monitor cant gather enough information to tell about the traffic quality. Packet Dump A RTP command-line quality monitor Configuration Before using this monitor, pl