The key to staying ahead of security threats or network performance problems is to have a network visibility architecture. By understanding the traffic that’s flowing on your network you can provide each tool with the right packet for protection, optimization, and success.
I got a few emails from people checking up on me to be sure that all is well.
I'm doing just fine, just busy working on the coreitpros.com material.
Here's a quick one showing you how to create a display filter, mark, and then save those marked packets.
Enjoy
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He said that he didn't want to ask me earlier because he only thought I worked on huge complicated networks and was 'beneath me'. I chuckled and told him a large network is basically the same as a small network, just more of the same stuff duplicated. I explained that it doesn't matter to me how many devices are on them, troubleshooting methodology is pretty well the same.
Throughout the ages of Ethernet, SysAdmins have made frequent use of SPAN ports configured permanently, or on-demand, on switches and routers in the troubleshooting path. SPANs virtually guarantee that every packet passing through a switch port is mirrored to another port, which easily replicates every frame and delivers a complete copy for offline analysis. But how scalable is this approach for new and future speeds in the Gigabit family?
