[U-Boot] [PATCH/RFC] net: defragment IP packets

[Robin Getz]

On Sun 26 Jul 2009 16:23, Alessandro Rubini pondered:
> >>    <http://www.faqs.org/rfcs/rfc815.html>
> > 
> > Yeah, I had seen this - but didn't want to duplicate something
> > that Alessandro might already working on...
> > 
> > Alessandro - were you going to add out of order packets?
> 
> If the code has chances to go mainline, I'll be happy to complete this
> task. 

In the past - Wolfgang has normally said that as long as it doesn't negatively 
effect his platforms (i.e. is a compile option that doesn't effect the size 
of the normal build) he is mostly OK with anything (within reason).

> So unless I get a nak earlier, I'm going to find a time slot in 
> the next few days (with your fixes, I suppose, or should they remain
> separate patches?)

Nah - roll them all together...

I'll send some comments to your earlier patch.

> > To make your host send out of order/delayed packets, which should be 
> > more "real world/long haul" try something like:
> >   # modprobe sch_netem (if it's not compiled into your kernel)
> >   # tc qdisc change dev eth0 root netem reorder 50% delay 10ms
> 
> Thanks a lot, I was missing that.

http://www.linuxfoundation.org/en/Net:Netem#Packet_re-ordering

Some of the examples do not work, and the tc errors are pretty much 
meaningless - the man page is pretty thin, but the command line

"tc qdisc change dev eth0 root netem help"

might get you what you need to test things.

-Robin