When there’s trouble in the network, and voice services are suffering, those in need will call upon you, the networking superhero! As a superhero, you use your x-ray vision to zoom in to the microscopic world of voice packets, to perform a Wireshark packet analysis, and to investigate the malfunction and make things right. Then you will be hailed as the liberator and protector of the network!Continue reading Wireshark Packet Analysis – A Preparation for VoIP Analysis
When I encounter a problem on a VoIP network that needs troubleshooting, I just wish that I had microscopic X-ray vision, like a superhero who is able to peer into the subatomic level of things.
It would be so advantageous to be able to instantaneously see what is going on with transmissions on the network.
When you experience voice quality issues, one way or choppy voice, or call setup problems, it would be great to be able to see, are the voice packets arriving? How are they arriving?
What kind of signaling is getting through and what is being blocked and where?
These are questions I wish I had instant access to, and this is what port mirroring is all about.
As you may know, starting of version 10.6 of Prime Collaboration Assurance packet capture became quite tricky. It happened due to Cisco’s decision to disable Root access on the server. Fortunately, Cisco didn’t quite swallow the key.