On Fri, Sep 30, 2011 at 6:02 AM, Saku Ytti <saku@ytti.fi> wrote:
On (2011-09-30 01:55 -0400), Christopher Morrow wrote:
when will vendors learn that punting to the RE/RP/smarts for packets in the fastpath is ... not just 'unwise' but wholesale stupid? :(
What to do with IP options or IPv6 hop-by-hop options? What to do with IPv6 packets which contain options which push TCP/UDP past your lookup view?
a switch to be used that stops processing this sort of thing, in an internet core (and honestly most enterprise core) routers, all I want is packet-in/packet-out. there's no need for anything else, stop trying to send line-rate packets to the cpu.
Punting transit is not only not stupid but also necessary in hardware routers which cannot handle every case in hardware (which is all routers).
no. all you need is a default 'do not process these, just fwd them' switch. (or, a switch at any rate that the operator can select one way or the other, they SHOULD know what is the best for their deployment).
There should just be adequate way to limit these and there should exist default limitation.
I really think zero limit is the right limit... (for a large number of deployments)