All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Tzeh Yeu Leang" <ltyvjc@hotmail.com>
To: lartc@vger.kernel.org
Subject: [LARTC] Problem with bandwidth
Date: Wed, 04 Apr 2001 07:13:34 +0000	[thread overview]
Message-ID: <marc-lartc-98636842927410@msgid-missing> (raw)

Hi all,

   Here is my setup: Host1 ---> Router ----> Host2

   When i run ttcp -t on Host1 while ttcp -r in Host2, the bandwidth that i 
can get is about 860 Kbytes/s, which is less than 7Mbps. But i am using NIC 
10Mbps for all machines. Why is that so?

   Currently, i am experimenting with the example efcbq. I am using MGEN (a 
UDP traffic generator) to send 2 flows of traffic (EF and BE) from Host1 to 
Host2. I allocate EF 3Mbit and BE 7Mbit in router. But using DREC (a 
receiver that comes with MGEN), i observed the bandwidth obtained by BE and 
EF do not tally with my tc configurations. And the sum of the total 
bandwidth received is about 4-5Mbps. I read somewhere in the mailing list 
that udp will have defragmentation problem. Another reason that i can guess 
is the way the software (MGEN and DREC) measure is not accurate. Any 
suggestions on what software i can use in order to have measurement that 
tally with tc configurations?

   Thanks.


_________________________________________________________________________
Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.


_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/2.4Routing/

             reply	other threads:[~2001-04-04  7:13 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-04  7:13 Tzeh Yeu Leang [this message]
2001-04-04  7:13 ` [LARTC] Problem with bandwidth Tzeh Yeu Leang

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-98636842927410@msgid-missing \
    --to=ltyvjc@hotmail.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.