IVS 9000 Packet Capture command: tcpdump

Hello, everyone. I want to share a packet capture guidance.

Background

When some issue happens, sometimes we need to capture network interaction packets to determine the issue.

The following describes the operation steps of IVS9000 for packet capture.

Method introduction & Solution

Download the tcpdump

IVS 9000 uses a virtual machine, so we first need to install the tcpdump command.

Download Link: http://3ms.huawei.com/km/blogs/details/8512221 (If you don't have permission, you can download the packet on the official website.)

• x86: tcpdump_euler_x86.zip

• ARM: tcpdump-4.9.2-6.eulerosv3r1.aarch64.rpm
  

Install the tcpdump command

1. Download the install packet.

2. Upload the install packet to the virtual machine.
   

3. Install the command.
   

   rpm -ivh xx.rpm
   

4. Start caputering.
   

How to use it

tcpdump -i any -s0 -vv port 5061 -w pcg.pcap

• -i: <Network interface>Send data packets using the specified netwrok section.
  

• -vv: displays the instruction execution process in more detail.
  

• -s : <data packet size> Set the size of each packet.
  

• -w: <data packet file> Write the packet data to the specified file.
  

Thanks for reading!