To collect and export NetFlow flows generated by border gateways/switches/routers or any other device that can export in NetFlow v5/v9 ; As a drop-in replacement of embedded, low-speed, NetFlow probes that may already been deployed ; To analyze multi-Gbit networks at full speed with no (or very moderate) packet loss ; To send monitored flows towards a collector such as the open-source ntopng or a commercial one (e.g. Cisco NetFlow Collector or Plixer)
PCs have moving parts that can break making the probe unavailable. ; PCs are large, need monitors and keyboards, whereas probes often need to be deployed on places where there is not much space available. ; Administering PCs is not cheap and they require the purchase of an OS, its installation and maintenance. ; In large networks divided in several trunks it is necessary to have several probes each analyzing a trunk. This requires that multiple hosts running nProbe are deployed across the network.
It supports a NetFlow-sFlow emitter-collector, a Hypertext Transfer Protocol (HTTP) based client interface for creating ntop-centric monitoring applications, and RRDtool (RRD) for...
nProbe™ NetFlow-Lite Plugin ; The performance figures have been measured on Linux using a Core2Duo (low-end performance) and a Xeon (high-end performance) based server, over an Intel 10 Gbit interface connected to the Cisco 4948E switch. The following section explains the difference among the above versions, and it describes how to use the various versions. In all examplex we suppose that the 4948E has IP address 1.2.3.4:32768 and it sends NFLite flows towards the collector running on a server with IP address 1.2.3.5 to UDP port 2055. We supp ...
Network traffic analysis with netflow and ntop [edit]Introduction DD-WRT include the capability of running rflow, a Cisco Netflow data exporter implementation. The netflow data is sent to a...
Features ; NetFlow v5/v9/IPFIX support · Flow export to JSON, Text, Kafka, Syslog, ntopng · IPv4 and IPv6 support · Native PF_RING and PF_RING ZC support for high-speed packet processing · Support of Accolade, Intel, Myricom, Napatech 10/40/100 Gbit NICs, and Silicom/Fiberblaze 10/100 Gbit NICs · Scalable, multithreaded design, ingress traffic can be load balanced across multiple streams on multi-core architectures · Layer-7 application visibility using nDPI (Deep Packet Inspection) or micro-nDPI (a lightweight DPI library supporting the ...
Simone Mainardi · 0 · NetFlow Collection Performance Using ntopng and nProbe · Posted July 19, 2021 · Introduction ntopng, in combination with nProbe, can be used to collect NetFlow. Their use for NetFlow collection is described in detail here. In this post we measure the performance of nProbe and ntopng when used together to collect, analyze, and dump NetFlow data. The idea is to provide performance figures useful to understand the maximum […] · Read More ; Simone Mainardi · 0 · Measuring nProbe ElasticSearch Flow Export Performance ...
Sort network traffic according to many criteria including IP address, port, Layer-7 (L7) application protocols, throughput, Autonomous Systems (ASs) ; Show realtime network traffic and active hosts ; Produce long-term reports for several network metrics including throughput and L7 application protocols ; Top talkers (senders/receivers), top ASs, top L7 application protocols
In our previous post we have analysed the performance of the pipeline nProbe+ntopng for those who need to collect flows and analyse them, trigger alerts, create timeseries, provide a realtime monitoring console, dump them to nIndex and inform remote recipients in case of some problem is detected. This is the main difference between the ntop solution and a NetFlow collector whose main goal is to dump flows on a database with any or little flow analysis. In essence the current state of the art with 4 nProbe instances sending data to a single ntop ...
High Performance Network Monitoring Solutions based on Open Source and Commodity Hardware.