Think about what the word "queue" means, which I realize is not easy if you
are not a native English speaker. Websters dictionary says it means, "a
waiting line especially of persons or vehicles." In England, I think people
even say that, "I'm waiting in a queue at the grocery store," or whatever.
In the U.S. we say "I'm waiting in line," except in New York, where they
say, "I'm waiting on line." (New Yorkers are different. ;-)
Ideally, packets shouldn't wait in line at all. They should whip through
the router and zip out the interface as quickly as possible. But if the
router is slow, or of more relevance, if the interface is slow, the packets
pile up in a queue. On a 56-Kbps line, for example, only 56 K bits can go
out per second. Sending a whole packet takes time. Other packets must wait.
If packets are waiting in a queue, you can configure the router for
something other than First In First Out. You can configure the order in
which packets should be removed from the queue and transmitted. The order
can be based on policies related to performance, security, etc. So, for
example, you could say SNA should be dequeued and transmitted before FTP.
Priscilla
At 09:22 PM 7/29/01, Hunt Lee wrote:
>It would be very great if someone can shed some light on this. It's a
>little bit off topic but thanks :) Firstly, when should one implement
>queuing technologies? I have read from various source saying that only
>do so if it is a bursty WAN links with T1/E1 speed or lower that
>experience temporary congestion? Is this true?
>
>Secondly, what AT commands should I use to set my modem back to default
>settings?
>
>Thanks again.
>
>Regards,
>Hunt Lee
>IP Solution Analyst
>Cable and Wireless
________________________
Priscilla Oppenheimer
http://www.priscilla.com
Message Posted at:
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