Force10 Gear

Adrian Chadd adrian at creative.net.au
Sun Sep 7 10:49:43 CDT 2008


On Sun, Sep 07, 2008, David Newman wrote:

> 1. Set IP options. A pair of Cat 6509Es using VSS can forward packets
> without options at up to 770 mpps, but when packets have options the
> maximum is more like 20 kpps. And that's a "high-speed" example; the
> options forwarding rate is more like 0 pps with some other devices.
> Silicon that forwards packets very fast is only good when header lengths
> are fixed.

So what you're saying is "send the right crafted packets and DoS the internet",
right?

(I think I know which options may make routers go all software-path on the
packets but I haven't given it a run on a Cat6500. Hm, I wonder if this here
3750 in the lab will do..)



Adrian





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