Traffic filtration using NIC capabilities on wire speed (10GE, 14Mpps)

This topic about NIC hardware filtration is very rarely covered but it’s very useful. Well, for this challenge you should buy modern 10GE NIC (for example, you could use Intel 520, Intel 540, Intel XL710 or any NIC on chipset Intel 82599). I will use NIC with Intel 82599 chipset with ixgbe driver. First of Read more about Traffic filtration using NIC capabilities on wire speed (10GE, 14Mpps)[…]

FastNetMon integration with Radware DefenseFlow

FastNetMon was built with interoperability in mind. Every day we are working hard on protocols and their corner cases. Modern Internet consist of hundreds of protocols and thousands of brands. It’s very complicated to support them all without cooperation. And we are pleased to share result of our cooperation with one of top vendors on Read more about FastNetMon integration with Radware DefenseFlow[…]

sFlow and NetFlow implementation details from real field experience

Hello, Network guys! In this article I’ll try to share my experience with different traffic monitoring solutions. As you know I’m FastNetMon author and we support wide range of capture engines from really long list of vendors. From first days FastNetMon was developed with unification in mind. So we tried hard to implement all possible options to monitor your traffic and Read more about sFlow and NetFlow implementation details from real field experience[…]

How you could investigate issues with Netflow

Hello! Recently I discovered one pretty ugly bug with Mikrotik devices: https://github.com/pavel-odintsov/fastnetmon/issues/620 It was caused by software error because for some reasons Mikrotik produced flows with negative length. It’s pretty tricky to find this sort of bugs because only small number of Netflow collector software will notify you about incorrectly crafted Netflow. Also I found Read more about How you could investigate issues with Netflow[…]

graphite

Graphite scalability and why InfluxDB is not well solution

Hello my Dear Community! I would like to share some results from my resent task. This article about Graphite optimization. So I have huge feedback about issues with InfluxDB. For example you could check this and this. I would like to remove my recommendations for InfluxDB because it’s unstable and has huge amount of memory leaks. Read more about Graphite scalability and why InfluxDB is not well solution[…]