Cisco Routers CPU and RAM utilization ?
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Author:  goscho [ Mon May 27, 2013 6:27 pm ]
Post subject:  Cisco Routers CPU and RAM utilization ?


I have a question about the router utilization of cpu and ram in GNS.
I am simulating a simple topology using Cisco routers and want
to see the cpu and ram utilization with the #show processes command
How accurate is the output of this command in a GNS simulation ?

Thank you

Author:  jamesmount [ Tue Jul 30, 2013 10:14 am ]
Post subject:  routers and switches

Actually RAM needed for labs with multiple routers running the same IOS image. With this feature, instead of each virtual router storing an identical copy of IOS in its virtual RAM, the host will allocate one shared region of memory that they will all utilize.
So for example, if you are running 10 routers all with the same IOS image, and that image is 60 MB in size you will save 9*60 = 540 MB of real RAM when running your lab. Ghostios is enabled, by default, in GNS3.
i think now your problem will be fixed...;-)

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