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тАО07-23-2010 08:28 AM
тАО07-23-2010 08:28 AM
hi all ,
i'd like to know did sflow effect the network performance as i know it take areal samples for traffic .
i'm using pcm 3.1 plus nd i enable sflow on 8206zl nd for 2610 sflow enable via snmp command nd pcm do that automatic so sflow slow down the network performance nd what should i do to slove this .
thank best regards
i'd like to know did sflow effect the network performance as i know it take areal samples for traffic .
i'm using pcm 3.1 plus nd i enable sflow on 8206zl nd for 2610 sflow enable via snmp command nd pcm do that automatic so sflow slow down the network performance nd what should i do to slove this .
thank best regards
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тАО07-25-2010 03:30 AM
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тАО07-25-2010 09:27 PM
тАО07-25-2010 09:27 PM
Re: questions about sflow
The overhead of enabling sFlow should be insignificant, provided that you choose a suitable sampling rate:
http://blog.sflow.com/2009/06/sampling-rates.html
Enabling sFlow should improve performance, helping to identify and eliminate unwanted traffic.
sFlow is an open standard and there a number of sFlow analyzers available. sFlowTrend is a free, graphical tool that provides a simple way to get started with sFlow:
http://www.sflowtrend.com/
A full list of sFlow analyzers is available on sFlow.org:
http://www.sflow.org/products/collectors.php
http://blog.sflow.com/2009/06/sampling-rates.html
Enabling sFlow should improve performance, helping to identify and eliminate unwanted traffic.
sFlow is an open standard and there a number of sFlow analyzers available. sFlowTrend is a free, graphical tool that provides a simple way to get started with sFlow:
http://www.sflowtrend.com/
A full list of sFlow analyzers is available on sFlow.org:
http://www.sflow.org/products/collectors.php
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тАО07-29-2010 12:06 PM
тАО07-29-2010 12:06 PM
Re: questions about sflow
Hello,
Make sure you export both the packet samples as well as the interface counters as the reporting tool can't accurately display traffic volumes.
Becareful of your sample rate, sflow can send 1-6 or more packet samples in a single udp datagram but, too high a sample rate will swamp the network and the collector receiving the samples.
please check out Scrutinizer for sflow analysis.
Jake
Make sure you export both the packet samples as well as the interface counters as the reporting tool can't accurately display traffic volumes.
Becareful of your sample rate, sflow can send 1-6 or more packet samples in a single udp datagram but, too high a sample rate will swamp the network and the collector receiving the samples.
please check out Scrutinizer for sflow analysis.
Jake
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