2821 ISR WAN link speed

Answered Question
Feb 18th, 2012
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Hello.


I get from my ISP 50 Mbps upload/download link via BGP. I tried to test today the speed by downloading around 10 torrents simultaneously and I use PRTG Network Monitoring to view port traffic speed. According to PRTG Reports the maximum rate of speed I get is 20 Mbps.

I use Cisco 2821 ISR on my side.


So I would like to know if it's a hardware limitation of my router or I should force provider to verify the link.


Any help is appreciated.

Correct Answer by Joseph W. Doherty about 5 years 6 months ago

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The    Author of this posting offers the information contained within this    posting without consideration and with the reader's understanding that    there's no implied or expressed suitability or fitness for any  purpose.   Information provided is for informational purposes only and  should not   be construed as rendering professional advice of any kind.  Usage of  this  posting's information is solely at reader's own risk.


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In    no event shall Author be liable for any damages whatsoever  (including,   without limitation, damages for loss of use, data or  profit) arising  out  of the use or inability to use the posting's  information even if  Author  has been advised of the possibility of such  damage.


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Safar Safarov wrote:


Thanks for the point.


CPU utilization is 12-15%.

In that case, the router, itself, shouldn't be the bottleneck.

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Joseph W. Doherty Sun, 02/19/2012 - 04:25
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Disclaimer


The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.


Liability Disclaimer


In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.


Posting


The other posters and provided a reference that documents performance of the 2821, but take special note what this document says at its beginning concerning actual performance.


What's your 2821's CPU stats look like during the described conditions?

Correct Answer
Joseph W. Doherty Sun, 02/19/2012 - 17:25
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Disclaimer


The    Author of this posting offers the information contained within this    posting without consideration and with the reader's understanding that    there's no implied or expressed suitability or fitness for any  purpose.   Information provided is for informational purposes only and  should not   be construed as rendering professional advice of any kind.  Usage of  this  posting's information is solely at reader's own risk.


Liability Disclaimer


In    no event shall Author be liable for any damages whatsoever  (including,   without limitation, damages for loss of use, data or  profit) arising  out  of the use or inability to use the posting's  information even if  Author  has been advised of the possibility of such  damage.


Posting


Safar Safarov wrote:


Thanks for the point.


CPU utilization is 12-15%.

In that case, the router, itself, shouldn't be the bottleneck.

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