In studying for my BSCI exam (and enhancing my knetwork knowledge in general), do I want to spring up to $300 for a packet analyzer on the eBay?
The very specific thing I'm trying to observe is the AS_PATH attribute in action on a BGP setup. I'm trying to learn about when we see the AS_PATH attribute versus the AS_SET attribute, especially when we have confederations set up.
I don't think confeds are actually in the BSCI curriculum, but I want to be a BGP genius.
Is there any BGP knowledge to be gained from using a packet analyzer, or are there debug commands that will give me what I want?