nanog mailing list archives

Re: satellite connections


From: "Brett D. Watson" <bwatson () genuity net>
Date: Thu, 05 Jun 1997 08:47:41 -0700

Hi,

Stephen Sprunk wrote:
 
I'm not sure how many TCP/IP stacks still set those bits; it may be
necessary to have a router manipulate the bits after examining the port
numbers of a connection.

Looks like a good place to use access lists that choose packets based on
tcp, udp, and port number.  If I could get a 45 Mbps circuit over high-latency
geosatellite, one-way, I could use it for http and "push" traffic.
The requests, outbound stuff, and interactive traffic would fit into a T1 
under the ocean.

  if you're interested in that, cisco's new CoS stuff uses precedence
(extended access lists, mac address, ports numbers) to do just such a
thing.  it would be most useful if isp's could have concensus on the
precedence "classes" to work across the multiprovider internet (may
not be practical though).

-brett




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