[38164] in North American Network Operators' Group
RE: QOS or more bandwidth
daemon@ATHENA.MIT.EDU (Kavi, Prabhu)
Tue May 29 15:36:26 2001
Message-ID: <6B190B34070BD411ACA000B0D0214E56CB800A@newman.tenornet.com>
From: "Kavi, Prabhu" <prabhu_kavi@tenornetworks.com>
To: "'Eric A. Hall'" <ehall@ehsco.com>
Cc: nanog@merit.edu
Date: Tue, 29 May 2001 15:30:00 -0400
MIME-Version: 1.0
Content-Type: text/plain;
charset="iso-8859-1"
Errors-To: owner-nanog-outgoing@merit.edu
Everything that you said is correct. However, you missed one
important part of QoS, which is TE. TE is about avoiding congestion
in the first place by more efficiently using all of the bandwidth
you already have in the network. To that extent, it is a substitute
for adding more pipe.
Prabhu
----------------------------------------------------------------------
Prabhu Kavi Phone: 1-978-264-4900 x125
Director, Adv. Prod. Planning Fax: 1-978-264-0671
Tenor Networks Email: prabhu_kavi@tenornetworks.com
100 Nagog Park WWW: www.tenornetworks.com
Acton, MA 01720
> -----Original Message-----
> From: Eric A. Hall [mailto:ehall@ehsco.com]
> Sent: Tuesday, May 29, 2001 3:20 PM
> Cc: nanog@merit.edu
> Subject: Re: QOS or more bandwidth
>
>
>
>
> > So, what problem is QoS solving?
>
> QoS is about choosing the packets that you are willing to
> drop or delay
> when congestion arises. If you aren't willing to drop/delay
> any of them,
> then you must over-provision.
>
> Regarding the existant thread, adding engineers and equipment will not
> give you more bandwidth, but instead it allows you to be more
> efficient in
> your packet disposal routines. They are not a substitue for pipe.
>
> --
> Eric A. Hall
http://www.ehsco.com/
Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
