North American Network Operators Group|
Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical
Re: Do routers prioritize control traffic?
On Feb 12, 2007, at 8:55 AM, Christos Papadopoulos wrote:
I know routers today have the ability to prioritize traffic, but last I heard, these controls are not often used for user traffic (let's not discuss net neutrality here).
Real world answer: It depends. :)
For instance, Juniper routers auto-police all traffic destined for the main CPU.
Cisco routers (usually) do not. You can configure it, though. Newer ciscos have very nice policing options for traffic to the main CPU. Older ones still have options, but the policing can hurt the router in its own way. There is also some auto-policing in ciscos, e.g. only one ICMP echo request per second per source IP address will be allowed to hit the CPU.
Hope that helps.
-- TTFN, patrick