Questions tagged [packet-analysis]

(Packet-analysis) aka Network Traffic analysis is the process of capturing network traffic and inspecting it closely to determine what is happening on the network Providesthe details of network activities and their communication pattern in a network

35
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3answers
2k views

Why do network taps have four ports?

I've been looking at a hardware network tap like this one to replace a pseudo-permanent SPAN that's been running on a Catalyst switch. All the taps I find have four interfaces: A, B, and two output ...
7
votes
2answers
1k views

Monitoring without Port Mirroring

A quick overview of the problem We've been experiencing some issues with our bandwidth usage lately which I fear may be due to misuse (whether intentional or not) of our internet in the office. I ...
4
votes
2answers
27k views

Troubleshooting “TCP Zero Window” Issues

I'm currently having a problem troubleshooting a trading application. Let me give a simple diagram of the current network setup (Gov't Stock Exchange Network Router)X-->(256kbs Leased Line)<--X(...
0
votes
2answers
71 views

Packets for Internet Connection [closed]

Consider the following scenario: AP is an access point with internet connectivity and in idle state (ie: no node is connected to it) N is a node that wants to establish an internet connection ...