Re: Idle-max value in Dynamips

I will be doing Narbik Labs pretty much all next month hopefully. Is there a
.net file for those out ? I know Dan Schecther had one for the TS website he
has with Narbik I believe.

On Wed, May 18, 2011 at 6:53 AM, Michael Kiefer <mjkiefer_at_gmail.com> wrote:

> Most of the problems you will run into with Dynamips will involve weird
> layer 2 issues involving trunks, access ports and SVI's. Sometimes they
> work, sometimes they don't. Sometimes reloading the topology works,
> sometimes it doesn't. In some cases you can if have an access port and an
> SVI behind it, you can simply remove the access port and replace it with a
> layer 3 port. From a functional point of view the topology is exactly the
> same, but the problem is goes away.
>
> If you run a hybrid setup with real switches and dynamips routers, most of
> the problems will go away. There will be other fun issues involving MTU, but
> the problems won't be as common.
>
> I run a full INE topology at home and run Dynamips almost exclusively for
> Narbik's workbooks. As I mentioned before, almost everything you will do in
> Narbik's workbooks is based on a very simple topology. He teaches the
> technology with an absolute minimal amount of fluff. You will be hard
> pressed to find dynamips related problems with Narbik's stuff.
>
>
>
>
> On Tue, May 17, 2011 at 8:36 PM, Elliott Reyes <
> fontananetworkengineer_at_gmail.com> wrote:
>
>> I'm using GNS3 and I usually have to readjust idle pc especially on
>> switches. Also usually loading the initial config files I had to modify .net
>> file to make it work right for the interface mappings. I alway's hear Narbik
>> labs are good but haven't had a chance to get to them. I have real lab as
>> well as GNS3 for INE and it seems to work ok so far.
>>
>>
>> On Tue, May 17, 2011 at 8:54 AM, Michael Kiefer <mjkiefer_at_gmail.com>wrote:
>>
>>> Expect lots of problems with INE's .net. It's not that it is inherently
>>> bad or anything, it's just that their topology suffers badly in dynamips.
>>> You will run into to all of the usual dynamips problems that don't exist on
>>> the real gear. Things will get worse as you start complicating the config.
>>>
>>> Narbik's workbooks are top notch and will give you a whole lot more bang
>>> for the buck as far as dynamips is considered. 95% of his labs only involve
>>> 3 - 5 routers and can use the default dynamips layer 2 switches.
>>>
>>> That's my 2 cents.
>>>
>>>
>>>
>>>
>>>
>>> On Tue, May 17, 2011 at 11:19 AM, Shane K <shanekgs_at_gmail.com> wrote:
>>>
>>>> Are you guys using the INE.net file for VOL1?
>>>> Any issues?
>>>>
>>>> S
>>>>
>>>> On Tue, May 17, 2011 at 2:49 PM, Elliott Reyes <
>>>> fontananetworkengineer_at_gmail.com> wrote:
>>>>
>>>> > I tried this suggestion earlier with my INE .net file and was able to
>>>> run
>>>> > all routers at around 21 percent CPU. I just had problems with the
>>>> >
>>>> > Switches I couldnt add my vlans without getting a error.
>>>> >
>>>> > I'm using INE for the VOL I scenario's.
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > On Sun, May 15, 2011 at 12:31 AM, Daniel Dib <daniel.dib_at_reaper.nu>
>>>> wrote:
>>>> >
>>>> > > Hi guys,
>>>> > >
>>>> > > I found a tip about tweaking the idlemax value to 100 which
>>>> drastically
>>>> > > decreases the CPU load. With it enabled I can run the full INE
>>>> topology
>>>> > in
>>>> > > Windows 7 on my laptop, without it I can't even start all the
>>>> routers.
>>>> > When
>>>> > > it is enabled I have about 20-40% CPU-load. I can't really find a
>>>> good
>>>> > > description of what this really does.
>>>> > >
>>>> > > According to Greg:" idlemax is the number of times that the code
>>>> executes
>>>> > > the address defined as the idlepc value before going to sleep. The
>>>> > default
>>>> > > is 1500 times."
>>>> > >
>>>> > > Are any of you other guys running this and have you seen any
>>>> implications
>>>> > > of
>>>> > > doing it? Thanks in advance.
>>>> > >
>>>> > > /Daniel
>>>> > >
>>>> > >
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Received on Wed May 18 2011 - 09:17:40 ART