Questions tagged [sflow]

For questions about sFlow, short for "sampled flow", is an industry standard for packet export at Layer 2 of the OSI model. It provides a means for exporting truncated packets, together with interface counters for the purpose of network monitoring.

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23
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4answers
67k views

What is the difference between netFlow and sFlow?

How is sFlow different from netFlow, and how is each supported by different vendors ?
5
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1answer
65 views

sFlow configuration tcam question for Cisco Nexus 9396PX platform

I am trying to configure sflow on Nexus 9396PX switch and having some difficulty to understand tcam region. hardware access-list tcam region span-sflow 256 ! feature sflow sflow counter-poll-interval ...
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1answer
497 views

sflow top talker support

I have nexus 9300 switch and i have configured sflow and i want to find out top-talker IP from command line but i am not seeing any command. I have Cisco ASR1k and i have configured netflow and i ...
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2answers
88 views

The Best Way to Secure sFlow Exports?

Hi Network Masters, I have recently gotten my network devices to export sFlow records to my sFlow collector. Trouble is, all those sFlow exports are being sent across my network in cleartext. A lot ...
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1answer
179 views

sflow configuration Cisco Nexus 9396PQ

We have Cisco a Nexus switch with M12PQ 12x40G GEM expansion card. Today when i enabled sflow on one of 40G interface i got following error: # sflow data-source interface e2/12 In order to enable ...
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0answers
44 views

SFLOW :: My Throughput Calculations Need a Constant Offset?

Hello Networking Jedi Masters, I recently set up vFlow, an open source sFlow collector from Verizon Digital. The collector works great, is quite stable, and easy to manage. I can’t say enough nice ...
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1answer
755 views

How to use sFlow-RT with RYU (SDN Controller) for detecting flows in a Mininet Topology?

I am new to Software Defined Networking and can't really get a full grasp of it. I want to detect the flows in a Mininet Topology created in linux environment using sFlow-RT and RYU Controller. I am ...
0
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1answer
96 views

How to use SFLOW for per-flow throughput?

I have a working sFlow collector on my network (vFlow, available as an opensource solution on GitHub, very awesome). The collector is running, successfully receiving sFlow data from my network ...
0
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1answer
84 views

Best practices to build network flow monitoring

Recently I'm investigating the solutions for ip flow monitoring, and come across a lot of pages talking about different solutions and trade-offs between netflow, sflow, IPFIX, etc. In short, netflow/...
0
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2answers
548 views

How to calculate traffic in bytes from sFlow datagrams?

I want to approximate network traffic in bytes by writing a sFlow collector that receives sFlow datagrams, parses them, extracts key information only and applies a formula that summarizes the traffic ...