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IOS vs Performances

Answered Question
Jul 25th, 2012
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Hello,


Just a quick question :

If I have a ROUTER with "Advanced Enterprise Services" and I ONLY need Basic IP Connectivity for Data , will a "Enterprise Base" version go faster ?


Sorry for this stipid question , I will attend my CCNA / CCNP Training in October.


Best Regards,

Didier

Correct Answer by paolo bevilacqua about 5 years 3 weeks ago

Not strange, check attached document.

BTW 100 Mbps is really fast even for 2012.


Thank you for the nice rating and good luck!

Correct Answer by Peter Paluch about 5 years 3 weeks ago

Hello Didier,


This is a very interesting question - absolutely not a stupid one!


It has always been my personal opinion that different feature sets of IOS within a single version do not have different performances. I have not noticed any notable performance differences between different feature sets of a single IOS version for a particular platform. Of course, configuring additional features may slow down the router (think IP Inspect, ZBFW, etc.), but simply having a bloated IOS should not slow the router per se.


What may be worth taking into account is the memory consumption. Fully featured IOSes naturally consume more RAM even if the additional features are not configured. If your required functionality calls for lots of RAM, running the Advanced Enterprise Services will unnecessarily consume the available RAM.


Please do not take my answer here as being definitive. I would like to read opinions of other friends here as well!


Best regards,

Peter

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Correct Answer
Peter Paluch Wed, 07/25/2012 - 14:38
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  • Cisco Employee,

Hello Didier,


This is a very interesting question - absolutely not a stupid one!


It has always been my personal opinion that different feature sets of IOS within a single version do not have different performances. I have not noticed any notable performance differences between different feature sets of a single IOS version for a particular platform. Of course, configuring additional features may slow down the router (think IP Inspect, ZBFW, etc.), but simply having a bloated IOS should not slow the router per se.


What may be worth taking into account is the memory consumption. Fully featured IOSes naturally consume more RAM even if the additional features are not configured. If your required functionality calls for lots of RAM, running the Advanced Enterprise Services will unnecessarily consume the available RAM.


Please do not take my answer here as being definitive. I would like to read opinions of other friends here as well!


Best regards,

Peter

paolo bevilacqua Wed, 07/25/2012 - 14:38
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No, it will not go faster.

It is not even said thye teach this stuff in traning.

Didier1966 Wed, 07/25/2012 - 15:09
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Thank You Both for your fast responce


The reason for this question I have a CISCO 1841 with "Advanced Enterprise Services" on it and when I connect my computer DIRECTLY to the ISP MODEM I have a 96 to 98Mb/s (TELENET BELGIUM ISP) , when I connect my computer behind the CISCO 1841 , I have ONLY 47 to 50Mb/s ?!?

IP CEF is ENABLE !!!

With a consumer ROUTER CISCO WRT610N , I can not see any differences with or without this router.

Really strange.



Best Regards,

Didier

Correct Answer
paolo bevilacqua Wed, 07/25/2012 - 15:22
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Not strange, check attached document.

BTW 100 Mbps is really fast even for 2012.


Thank you for the nice rating and good luck!

Didier1966 Wed, 07/25/2012 - 22:55
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I was looking for this kind of table , this is perfect , thank you

This is the result with the cheap CISCO WRT610N :


Best Regards and Thank You again for the PDF,

Didier

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