MTR is powerful network tool that enables administrators to diagnose and isolate networking errors and provide helpful reports of network status to upstream providers. In many cases, when troubleshooting, we usually require the report of MTR and Network Traffic Capture. They're very helpful to find out the root cause of the issue.

 

Please note that all reports must be collected while the troubles are occurring. If not, they're pretty meaningless.



Collect MTR Report

Using MTR on Unix-based Systems (Linux/GNU) 


Syntax of command

mtr [-hvrwctglspniu46] hostname [packetsize]


 For example, to test the route and connection quality of traffic to the destination sip1.hoiio.com, with useful flag -rw -c50, input following command


root@ip-10-7-1-231 ec2-user]# mtr -rw -c50 sip1.hoiio.com



Using MTR on Windows Systems


For Windows, we use the WinMTR. 



Using MTR on MAC OS X


To gather the MTR report on MAC OS X, you need to install mtr package at Rudix. then run the following command in Terminal


sudo /usr/local/sbin/mtr -rw -c50 sip1.hoiio.com



Note:


  • The destination host should be the SIP domain your SIP account is based on. 
  • To understand more about MTR, please refer to Linode. 





Collect Network Traffic Capture


To capture the network traffic, we using Wireshark/TShark tools, is a free and open-source packet analyzer. It is used for network troubleshooting, analysis.



Using TShark on Linux/GNU Systems 



Syntax of command , input tshark -h for Usage instruction

tshark [options]




For example, capture the network traffic on NIC0 and save the capture file with name "capture-output.pcap" enter following command

tshark -i eth0 -w capture-output.pcap


Press Ctrl + C to stop capture network traffic.



Using Wireshark on Windows (download) Note that select correct interface to capture network traffic.