From: Noel Bourke (cros13@gmail.com)
Date: Thu Jun 07 2007 - 14:24:33 ART
Ubuntu 7.04 with re-compiled optimized kernel.
Linux is the best option for dynamips. On windows i believe that dynamips
runs using cygwin.dll.
That means that dynamips runs not exactly entirely native.
Hope you don't mind that i broadcast this to GS.
Regards,
Noel
On 6/6/07, nayyar hakeem-habeeb <nyrhh@hotmail.co.uk> wrote:
>
>
> Hi Noel,
>
> Thanks for you response!
>
> What OS are you running on the Box able to load 24 routers?
>
> I have split the routers across 2 instances and using ghotios but
> performance is still a problem, have result to building a Linux box to host
> dynamips.
> Hope it goes well .. fingers crossed!
>
> Thanks
>
>
>
>
> ------------------------------
> Date: Tue, 5 Jun 2007 17:37:34 -0400
> From: cros13@gmail.com
> To: nyrhh@hotmail.co.uk; ccielab@groupstudy.com
> Subject: Re: HW PLATFORM for DYNAMIPS
>
> I use a dual Xeon Noncona at home for dynamips. But that's beside the
> point.
>
> I have a laptop (2.33 Core 2 Duo, 4GB RAM). I run up to 24 routers (full
> bgp, igrp etc.) with no problems.
>
> To get better performance on your system, set the idle-pc per router (I
> don't do this, its too much work),
> and split the dynamips instance between your 2 cores.
>
> You can split it by setting up 2 dynamips server instances as in the docs,
> set cpu affinity in task manager so
> each instance runs on only 1 core. in your dynagen config roughly split
> your routers between the 2 instances
> taking into account expected load on each router. with a 2 ghz core arch
> cpu you can expect to run up to 20 routers.
>
> RAID will defiantly make no difference unless you are paging memory used
> by dynamips (A VERY BAD THING (TM))
>
> Regards,
> Noel Bourke
>
>
> On 6/5/07, *nayyar hakeem-habeeb* <nyrhh@hotmail.co.uk> wrote:
>
> Hello GS,
>
> i know this might sound really stupid .... i do beg your pardon .....
>
> Has any one tried running dynamips [with full Internetwork Expert Labs] on
> a
> Server platform? if yes, were there any significant performance
> improvements
> as opposed to laptop/desktop platform?
> Loaded dynamips [with full Internetwork Expert Labs] on a Laptop [Core Duo
>
> 2Ghz, 2GB SDRAM(533Mhz) and 120GB HDD] performance was not really
> acceptable
> as some router processes kept hogging up router CPU time. Noticed HDD a
> great
> deal HDD access which kept LED constantly ON. Hence I'm hoping there might
>
> significant improvements on a Server platform due to RAID and bus speeds
> etc
> ??
> Thanks in advance.
>
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