Wireshark: How to Identify RTP stream Packet Drop

You might have seen issues like choppy voice, unclear deferred video etc in your network. This kind of problem can become a little difficult to isolate because you need to check all the devices in the path and different teams like network admins, voip team, video teams need to collaborate. Very recently I have come … More Wireshark: How to Identify RTP stream Packet Drop

Wireshark : How to identify burst of traffic in network

We come across this situation a lot when we see drops in QOS classes and continuous increase in “Total Output drops” on interfaces but for sure our traffic never crosses CIR rate which ISP provides. This quizzes mostly every network engineer many times in their career. You would see something like this: Router#show interface ten0/0 … More Wireshark : How to identify burst of traffic in network

MPLS QOS

In my previous post I have setup a very basic MPLS network. I will use the same setup to explain how exactly MPLS ensures QOS for packets which hit MPLS domain with a tag. Following is the process which occurs when the plane IP packet enters the MPLS domain. Tags available in the IP field … More MPLS QOS