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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
> >In my travels I have heard numerous times that it is a popular practice to
> >give ICMP and even UDP traffic a lower priority on backbone routers in
> >times of congestion.
The question was about the priority of ICMP. Perhaps I erred in mentioning
that ICMP is important for congestion control. "Congestion control" is far
too vague. Perhaps I should have used the more generic term "network
control" instead.
ICMP is an important protocol, and cannot be blocked blindly. As a
protocol, it is not obsolete, though some functions are deprecated. In
certain cases however, ICMP is given a high priority in the TOS field.
--Dean
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Plain Aviation, Inc [email protected]
LAN/WAN/UNIX/NT/TCPIP http://www.av8.com
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