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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: backbone routers' priority settings for ICMP & UDP
> This is not typically a policy that is carried out by the providers. It is > just how some router vendors have developed their implementations. They > don't give a lower priority to UDP or ICMP unless that traffic is destine > for the router itself. I think that this is insufficiently clear, though correct :-) Non-optioned traffic *through* a cisco router running IOS is always treated the same. Traffic destined *to* one of the addresses on a router is usually switched with a different switching mode (i.e. "process switching"). Process switching is a seperate set of queues on the router, and therefore a seperate set of delays. Despite various assertions you might hear people make, process switching is not likely to drop packets more frequently. It is likely to introduce higher delay. --jhawk
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