How to read TCPDUMP output?

I have some strange traffic problem on my server. Daily bandwidth usage goes up and down in random order. My hosting provider recommended me to use tcpdump to get all headers of packets on a network interface.

So I tried it, but I dont understand all that cryptic information. Also, the output for an our will be huge and I cant read it all.

Is there any program that will sort and report the packet flow on my server reading the tcpdump output?

Thanks

 

 

 

 

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