All of lore.kernel.org
 help / color / mirror / Atom feed
From: lihpc@Legend.com
To: lartc@vger.kernel.org
Subject: [LARTC] help,  strange question about tcp and udp traffic control?
Date: Wed, 06 Nov 2002 14:07:54 +0000	[thread overview]
Message-ID: <marc-lartc-103659185426866@msgid-missing> (raw)



Hi ;



    +--------+           +-----------+                     +--------+
    | server |---------- | linux box |---------------------| Client |
    +--------+           +-----------+                     +--------+

MY script:

tc-htb3 qdisc del dev eth1 root
ipchains -F

tc-htb3 qdisc add dev eth1 root handle 10: htb default 20  r2q 40

tc-htb3 class add dev eth1 parent 10: classid 10:1 htb rate 50Mbit   burst
2000

tc-htb3 class add dev eth1 parent 10:1 classid 10:100 htb rate 12mbit ceil
13mbit prio 1
tc-htb3 class add dev eth1 parent 10:1 classid 10:20 htb rate 38mbit ceil
50Mbit prio 7

ipchains -A fw -s 10.1.1.1 -d 10.1.5.1 -m 100
ipchains -A fw -s 0.0.0.0 -d 0.0.0.0 -j ACCEPT

tc-htb3 filter add dev eth1 protocol ip parent 10:0 prio 1 handle 100  fw
classid 10:100




I've find one strange question about traffic control when sending udp data
and tcp data.
Could you explain it ? thanks


question:

WHEN I measure maximum UDP bandwidth by using "Iperf -1.6 -s -u" in server
host and "iperf-1.6 -c <server address>  -u  -b 50m" in client host, the
bandwidth is 12.1mbit.
OK.  work well.

BUT
WHEN I measure maximum TCP bandwidth by using"Iperf -1.6 -s " in server
host and "iperf-1.6 -c <server address>  " in client host, the bandwidth is
only 3.1mbit.
WHY ?


haipe




_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

             reply	other threads:[~2002-11-06 14:07 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-06 14:07 lihpc [this message]
2002-11-06 17:00 ` [LARTC] help, strange question about tcp and udp traffic control? Stef Coene

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=marc-lartc-103659185426866@msgid-missing \
    --to=lihpc@legend.com \
    --cc=lartc@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.