Network simulation using jails & vimage

[Julian Elischer]

Bjoern A. Zeeb wrote:
> On Sun, 21 Feb 2010, Julian Elischer wrote:
> 
> Hi,
> 
>> Jim Sifferle wrote:
>>> Hi,
>>>
>>> I've used ipfw and Dummynet as well as ipfw + DSCP recognition patch and
>>> pf/altq to simulate Internet and MPLS WAN environments for several
>>> years.  All of my setups have run under VMWare, which for many reasons
>>> isn't ideal.  I would like to collapse all of these VMs into one FreeBSD
>>> box using jails and vimages.
>>>
>>> Does any FreeBSD branch / vimage release combination support separate pf
>>> AND ipfw configurations per jail?  I need ipfw+pf/altq for HFSC queuing
>>> to simulate the queueing effects of MPLS provider edge and core
>>> routers. 
>>
>> -current (9) should be close, with patches for pf supplied by ceri.
> 
> s,ceri,eri,  (Ermal Luçi)

err yeah..

it'd be nice if itcould get committed

Ermal, is it ready?

> 
> 
>> 8 can do separate ipfw  but pf is not changed.
>> 9 has bugs fixed. but I'm not sure if the changes for pf went in..
>> they do exis tif they are not in already.
> 
> No, pf hasn't gone in yet; it lives in user/eri/pf45/ in svn and I am
> not sure what the plans are.
> 
> Apart from the latest changes 8 and 9 should be pretty much in sync
> wrt to VIMAGE I think.
> 
> 
>>> I'm hoping the latest 7.2-STABLE-201001 snapshot will work.  The DSCP
>>> recognition patch for ipfw that I rely on doesn't seem to work with
>>> 8.0. If 7.2 won't work for my needs, but 8 or 9-CURRENT will, is 
>>> anyone aware
>>> of an updated ipfw DSCP patch?  I haven't seen anything on Google or the
>>> freebsd-ipfw mailing list. 
>>
>> what is DSCP?
> 
> I guess Differentiated Services CodePoint (if talking MPLS).
> 
> 
> /bz
>