[j-nsp] ip(v6) options

[Jared Mauch]

On Fri, Jan 29, 2016 at 09:11:38PM +0200, Saku Ytti wrote:
> Hey,
> 
> 
> > Isn’t there a requirement that packets with IP options needs to be punted to the CPU for processing (process switched) (on every hop)
> > Although I'd be interested to know if it's the LC CPU or RE CPU handling these then.
> 
> Well not hard requirement, but no one in market needs IP options at
> performance, so they're done in software in all platforms that I know
> of. This isn't the debate, the debate is if or not they should hit lo0
> filter.

	Some platforms, eg: ASR9K process these on the LC.  I know this as we
had LCs crash from a research team using these options.  It only impacted one
LC type and only a specific version of software.

	- Jared

-- 
Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.