Re: solaris 9 IPQoS examples?

From: Logan Shaw (lshaw-usenet_at_austin.rr.com)
Date: 09/07/03


Date: Sun, 07 Sep 2003 20:15:28 GMT

Anthony Mandic wrote:
> Logan Shaw <lshaw-usenet@austin.rr.com> wrote:
>> Anthony Mandic <mailto:am@peppler.org> <mailto:anthony@isug.com>
>> <mailto:amandic@start.com.au> wrote:
>> > Richard L. Hamilton <Richard.L.Hamilton@mindwarp.smart.net> wrote:

>> >> Looking for something to keep a client on a slow (56k) link
>> >> from being dominated by web or ftp downloads; i.e. so that

>> > Sounds like you'd have to write a TCP streams module to do that.

>> The other question is, can you get the OTHER end to cooperate

> Oh, you mean there's no way for the STREAMS module to jam up
> on non-priority traffic (the negation of a list of priority
> ports) when it sees a "priority" port?
>
> Hammy referred to downloading, meaning initiated locally.

I'm just saying, if I change the TCP stack on the local machine,
how does this affect downloads much? No matter who initiated the
TCP connection, it's still the remote end that is sending packets
across the 56k link. It will, for the most part, send whatever
it wants to send.

Yes, you can do tricks (like pretending you dropped packets that
you actually got) to trick the remote system into thinking that
less bandwidth is available than you actually have. But still,
if 5 packets arrive at once at the remote end, chances are it
will send them across the link and saturate it for a moment.

   - Logan



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