Unix friendly network testbench for FreeBSD?

[Julian Elischer]

youshi10 at u.washington.edu wrote:
> On Thu, 3 May 2007, Marko Zec wrote:
> 
>> On Wednesday 02 May 2007 23:40:35 youshi10 at u.washington.edu wrote:
>>> On Wed, 2 May 2007, Chuck Swiger wrote:
>>>> youshi10 at u.washington.edu wrote:
>>>>> Hi,
>>>>>      I'm looking for a network testbench / simulator to stimulate
>>>>> known networking conditions to test out a component for a product
>>>>> at work. I was wondering if there was a network simulator
>>>>> available (preferably open source) that's FreeBSD / Linux
>>>>> compatible which I can simulate as real of a network as possible
>>>>> on a virtual machine / network.
>>>>
>>>> Dummynet or ALTQ might be good starting points, as is netgraph,
>>>> depending on just what you're trying to do.  There are also
>>>> userland benchmark/analysis tools like flood pinging, netperf, & ab
>>>> ("apache bench").
>>>>
>>>> -- 
>>>> -Chuck
>>>
>>> Hmmm... ok, expanding on that what I was looking for was a means to
>>> simulate semi-realtime delays across a virtual network with 4+
>>> virtual machines. Is it possible to use Dummynet in this case, or do
>>> I need to look into something else?
>>
>> You can use IMUNES for emulating arbitrarily complex network topologies
>> with hundreds of nodes, with each virtual node beheaving like an
>> independent FreeBSD box, if that's what you are after.
>> www.imunes.net -> it's still based on an aging but rock solid 4.11
>> kernel, with a version that will run on 7.0-CURRENT expected to become
>> available in the next month or so.
>>
>> Marko
> 
> Marko,
>      What roadblocks are you coming across porting IMUNES to a possibly 
> earlier version (5.5, 6.2) of FreeBSD than 7 though? Maybe I can try and 
> help, depending on the required tasks.
>      Anything possible to help speed up my work and our regressions at 
> my work is more than appreciated.
> -Garrett

When you look at the scope of the changes you'll realise what you are asking..

I'd go with 4.11 or wait the extra month or so..

> 
>>> Other conditions I planned on imposing are non-locking NFS (causes a
>>> lot of issues here with files at work), and have SUSE 32-bit clients
>>> (host OS of choice at work) if possible connect to the host machine
>>> and with one another, executing make jobs.
>>>
>>> Any further suggestions on how to do this?
>>>
>>> Thanks,
>>> -Garrett
> 
> _______________________________________________
> freebsd-net at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-net
> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"