One of the great consequences of the DNA design, is that user-space applications can now transmit and receive packets without going through the kernel TCP/IP stack at all. This can be profitably used to reduce network latency bypassing the stack, and reading the number of user-space stacks that have been developed in the past years […]
Not All Servers Are Alike (With DNA)
PF_RING DNA is a great success for us as we see the users community grow every day. At the same time, sometimes we receive complains of people who say that they can’t reach the performance we observed (i.e. 1/10 Gbit RX and TX wire-rate with any packet size) in our laboratory. Today thanks to Donald […]
PF_RING 5.0 Introduced: DNA 1/10 Gbit and vPF_RING
We’ve just cut the code of PF_RING 5.0. As it contains many changes with respect to the previous version, it deserved a major version number. We refreshed our DNA drivers to 1 Gbit Intel NICs (e1000e and igb families) in addition to the existing 10 Gbit DNA driver. All the DNA drivers source code is […]
Building a 10 Gbit Traffic Generator using PF_RING and Ostinato
Whoever has developed network applications, soon or later had to buy or rent a traffic generator. Years ago I have purchased my 1 Gbit IXIA 400T on ebay for 2500$, and I wanted to buy a 10 Gbit traffic generator when I started to develop DNA. Unfortunately I could not afford the price of those […]
Running a load-balanced Snort in a PF_RING cluster
Today I came across this article that I think all PF_RING/snort/suricata users should read.
Ok, but how much time do I have?
Accelerating packet capture and processing is a constant race. New hardware innovations, modern computing architectures, and improvements in packet capture (e.g. PF_RING) allow applications to reduce the (both CPU and real) time they need for processing packets. But the main question still holds: how much time do I have for processing packets? This is the […]
10 Gbit PF_RING DNA on Virtual Machines (VMware and KVM)
As you know, PF_RING DNA allows you to manipulate packets at 10 Gbit wire speed (any packet size) on low-end Linux servers. As virtualization is becoming pervasive in data-centers, you might wonder whether you can benefit of DNA on virtualized environments. The answer is positive. This post explains you how to use DNA on both […]
Introducing the 10 Gbit PF_RING DNA Driver
Today we released PF_RING 4.7.0. It includes 10 Gbit DNA support (RX/TX) for Intel-based 82598/99 ethernet adapters thus you can finally manipulate packets at wire-rate using commodity adapters. With a low-end Core2Duo you can handle more than 11 Mpps per queue, with a Xeon you can have wire rate at any packet size and using limited […]
How to send/receive 26Mpps using PF_RING on commodity hardware
Until last month, I have struggled to reach 7 Mpps packet capture using TNAPI. This week I see users still asking questions about how to handle 2 x 1 Gbit wire rate on commodity hardware. I believe it’s now time to move to the next level, and achieve full 10Gbit wire rate on both RX and […]
Using nProbe as NetFlow-Lite Cache
As previously stated on this blog, we have worked tightly with Cisco as nProbe has been selected as reference implementation for NetFlow-Lite flow conversion. Although NetFlow-Lite support has been added to nprobe since version 6.1.4 and it’s available on all supported platforms (both Unix and Windows), with nProbe 6.5 (just released) we have moved NetFlow-Lite […]