From: "Tzeh Yeu Leang" <ltyvjc@hotmail.com>
To: lartc@vger.kernel.org
Subject: [LARTC] Problem with bandwidth
Date: Wed, 04 Apr 2001 07:13:44 +0000 [thread overview]
Message-ID: <marc-lartc-98636847327560@msgid-missing> (raw)
In-Reply-To: <marc-lartc-98636842927410@msgid-missing>
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.
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prev parent 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 [LARTC] Problem with bandwidth Tzeh Yeu Leang
2001-04-04 7:13 ` Tzeh Yeu Leang [this message]
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