Linux Ethernet Bridging - Apr 2007 - [Bridge] Introducing latency

Jeff Gercken wrote:
> Does anyone know how I might introduce latency on the packets that I
> bridge?  I'm trying to develop a system for simulating wan links and
> often bandwidth isn't as big an issue as delay, especially when talking
> wireless (dot11 or satellite).
You can use the dummynet of the ipfw in FreeBSD to add delays/link 
limitations/loss.  You can also create a bridge with ipfw as well.  I am 
not sure what Linux has for traffic shaping.

Roman
> 
> Thanks,
> jeff
> 
> 
> 
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On Wed, 4 May 2005 14:07:46 -0400
"Jeff Gercken" <JeffG@kizan.com> wrote:
> Does anyone know how I might introduce latency on the packets that I
> bridge?  I'm trying to develop a system for simulating wan links and
> often bandwidth isn't as big an issue as delay, especially when talking
> wireless (dot11 or satellite).
You can use netem (part of recent 2.4 and 2.6 kernels).
More info at:
http://developer.osdl.org/shemminger/netem

Does anyone know how I might introduce latency on the packets that I
bridge?  I'm trying to develop a system for simulating wan links and
often bandwidth isn't as big an issue as delay, especially when talking
wireless (dot11 or satellite).

Thanks,
jeff