Cisco ASR 9000 Configuration Guide
One of the best parts about working in Tech Support for a company that analyzes NetFlow, is that I get the opportunity to work with a wide variety of vendors and models. Today most vendors are supporting at least one form of NetFlow. Whether that’s version 5, version 9 or IPFIX. No matter what version of NetFlow, we’re awarded the ability to capture and analyze the traffic on our network in almost real-time. Today I wanted to take a look at the founders of the NetFlow protocol, Cisco, and their Cisco ASR 9000 configuration.
Cisco ASR 9k
One important thing to note about the ASR9k, is it supports sampled NetFlow. There’s a bit of controversy surrounding sampled NetFlow however. Some people prefer it because it alleviates the possible performance penalty incurred by enabling NetFlow exports. Others would prefer getting a more complete picture of their network traffic. Mainly this will depend on the traffic volume of your network. It is important to note though, that sample NetFlow will substantially decrease the CPU utilization needed to account for NetFlow packets. That being said, let’s dig into getting your Cisco ASR 9000 configured! Read more »
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