voip packet loss

Bandwidth or flow rate unit: Kbps Kbyte/sec Kilobytes per second Mbps Mbyte/sec Megabytes per second Kbit Kbits/sec Mbit Mbits/sec 1 , Analog Delay Transfer# TC Qdisc Add dev eth0 root netem delay 100msThis command sets the transmission of the eth0 NIC to a delay of 100 milliseconds to send.In a more realistic case, the delay value will not be so accurate, there will be a certain flu

By the 3 (in fact, 2) the problem of the pit miserable, there is no problem of missing packets, previously thought that the problem of packet loss is not present.The case of sticky and broken packets is present, these two problems are not afraid, as long as the sending received packet order is not disrupted upside down, everything is good.Easy-to-drop pits: Accep

Today in the company asked the boss, the company's project Bottom, is the use of TCP, because of reliable, automatic disconnection, in the bottom of the implementation, but I remember TCP will also have a swap problem, so this article was born--on the problem of TCP swap, TCP is based on unreliable networks to achieve reliable transmission, There is certainly a case for the substitution.If there is missing data or drops in the communication, the most likely problem is the process of sending the

The performance of the test system in Linux has found that the packet loss rate is extremely serious. It sends 210000 pieces of data, and the packet loss rate reaches 110000. The packet loss rate exceeds 50%. In the same case, onl

Clone Zabbix's own template ICMP ping templates 650) this.width=650; "Src=" Http://s5.51cto.com/wyfs02/M01/86/F3/wKioL1fPrcLi2YxjAAByYarcCOM203.jpg-wh_500x0-wm_3 -wmp_4-s_2806794333.jpg "title=" ping 202.96.209.5.jpg "alt=" Wkiol1fprcli2yxjaabyyarccom203.jpg-wh_50 "/>Here I make a network delay template to 202.96.209.5 Shanghai DNS650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M02/86/F3/wKioL1fPrnnS2DkyAACNTuKAcik725.jpg-wh_500x0-wm_3 -wmp_4-s_2264462392.jpg "title=" qq2016090714062

Cause Analysis of UDP packet loss in linux kernel 1. UDP checksum and error phenomenon: You can use netstat-su to view UDP error packets. Tcpdump packet capture: Enable the captured udp packet in wireshark and enable the checksum option. Solution: Search for Link faults www.2cto.com 2. Firewall enabling phenomenon: pac

the connection, The connection pool considers the connection to be valid (because the validity of the connection is not verified), which results in an error when the application requests the connection. 3. Workaround: A. Follow the wrong prompts, you can use the AutoReConnect property in the JDBC URL, here is my configuration Jdbc:mysql://localhost:3306/anxincar? autoreconnect=true Where the red part is the newly added property settingHowever, there is another version of the Internet, it has be

Analysis on network packet loss caused by full tracking of ip_conntrack connections When the access volume of our online web server is very large, packet loss occurs during network connection. You can view the log by running the dmesg command and find the following information: kernel:ip_conntrack:tablefull,droppingpac

Summary Packet loss occurs when we use ping to check whether a system can run normally. packet loss occurs in the channel for various reasons. Ping uses ICMP send-back request and send-back response packets. An ICMP return request message is a request sent from a host or router to a specific target host. The machine

One, bandwidth estimationTCP bandwidth estimation is mainly implemented by the congestion control algorithm, which uses two variables:1, CWnd TCP estimation of the current link available bandwidth2, Ssthreash congestion control algorithm "hypothetical" out of the available bandwidth valueSecond, packet loss recoveryThere are three cases of packet

1 Try {2 //send data to the specified IP and port ~ ~ 3 //let's explain who sent the data! 4 byte[] IP =inetaddress.getlocalhost (). Gethostaddress (). GetBytes ();5DP =Newdatagrampacket (IP, ip.length, Sendiad, Qqreceive.getport ());6 Ds.send (DP);7 8 //this is mainly due to the fact that multiple datagram packets are sent when the pa