[e2e] Number of persistent connections per HTTP server?

=?gb2312?q?Jing=20Shen?= jshen_cad at yahoo.com.cn
Fri Oct 18 19:05:06 PDT 2002


I've read Karbhari etc's paper "Multipoint-to-point
session fairness", but I have some question with it.

The two algo. proposed try to adjust source rate with
regarding to intra-session weight and inter-session
fairness. But, 

1. how could that be done in internet? 
If it's to adjust  rate between servers, it just  need
to consider e2e transmission capacity, but the algo.
make use of link bandwidth info along the routing
path. If it's to adjust IP packet enjecting rate
between hosts, how could it guaranteed to figure out
link capacity along the routing path and inform the
exact value to server? 
some of the connection is short-lived!

2. the algo. seems to adopt a equal-treating
methodology between all session/connection, but what
about those demand with different priority? such as,
if there is advertisement info on a web conference
application, the participants engage a priority on
conferencing packets other than those advertisement



>We've recently been working on higher (session) level
>of fairness, with a focus on a range of possible
policies and
>algorithms to achieve them.  Our emphasis has been
>single-receiver sessions, as arise for parallel
complex web pages, etc.  See:

>Multipoint-to-point sesssion fairness in the
>Karbhari, Zegura and Ammar.  Submitted to Infocom'02.

Jing Shen

State Key Lab of CAD&CG
ZheJiang University(YuQuan)
HangZhou, ZheJiang Province 310027

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