Subject: What scheduling for RSVP Traffic Control?

From: [email-masked]
Date: Wed, 3 Mar 1999 08:18:56 -0800

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>From [email-masked] Wed Mar  3 02:51:35 1999
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Date: Wed, 03 Mar 1999 11:35:11 +0100
From: Simon Pietro Romano <[email-masked]>
Organization: Universit` di Napoli Federico II
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Subject: What scheduling for RSVP Traffic Control?
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Hi all,

we're making some studies and experiments on the effectiveness of
different
scheduling policies in an RSVP-based network environment.
We'd really appreciate  your feedback on the following issues:

- we argue that, in an RSVP-based environment, in which QoS requests
 are made on a per-flow (or per/application) basis, a WFQ scheduling
 discipline is more indicated than a CBQ one to meet bandwidth
management  requirements. CBQ, in fact, is is well suited to scenarios
(perhaps diffserv scenarios ?)   in which the total  bandwidth is
divided among different organizations, which in turn  manage
their resources on the basis of  local policies;
- furthermore, as far as  we could notice, no current release of
RSVP relying on CBQ traffic control modules makes a
differentiation in the way guaranteed  and   controlled load services
are treated, in the  sense that no computations are made   relating
to ADSPEC  object updating in the case where there exist specific bounds

on the delay which the packets belonging to a GS flow can tolerate.

Thanks in advance ,

Simon Pietro Romano and Raffaele D'Albenzio ([email-masked])

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                    Simon Pietro Romano
              Universita' di Napoli Federico II
                 Computer Science Department
        Phone: +39 081 7682897 -- Fax: +39 081 7682942
                e-mail: [email-masked]
          http://www.grid.unina.it/individual/sprom

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