I respectfully disagree.
The 40% number refers to ethernet utilization, not to percentage broadcasts.
In other words, as a rule of thumb, if you are running 4mbs of traffic
across your Ethernet, you are approaching saturation.
In terms of percentage of network traffic that is broadcast, there is an old
saw that if broadcasts exceed a certain percentage of your traffic, your
networking trouble. All I can say is that in the brokerage firm where I
worked, during market hours, broadcasts made up around 90% of our network
traffic. How else do brokers get their quotes.
The key here is understanding how your network is used. In my case,
understanding the nature of the business and therefore the usage of the
network, I could sleep well knowing that life was good.
In the case of the gentleman below, having used the Fluke to determine that
something is happening, the next step is to determine why. The Linux box is
used for what besides syslog? Is it the creator or the receiver of those
broadcasts, or the creator? As a syslog server, I would venture to guess it
is a top receiver. If there is a high percentage of broadcast, what other
servers are there? How are hosts configured? What protocols are in use? What
time of day was this done?
Just some idle thoughts
Chuck
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Terence Lee
Sent: Wednesday, May 23, 2001 2:29 AM
To: [EMAIL PROTECTED]
Subject: Re: how to reduce a broadcast on PC? [7:5517]
Basically your network is already saturated. Any broadcast over 40% on
ethernet is saturated. Your syslog box should not really be generation
anything if you are just using it to log. Try using another nic to see if
that helps
--
Terence Lee, MCSE, CCNA,
""Sim, CT (Chee Tong)"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi.. I used a fluke meter to check the health of our network. I found one
> of our Linux server are generating 14% of broadcast. But I don't know how
> to reduce it? any idea? For your information, we use this Linux box act
as
> a syslog server to receive message from all our switches. Does it
> contribute to the broadcast? If the fluke meter found my network has 45%
> broadcast, will it slow down my network?
>
> Chee Tong
>
>
>
> ==================================================================
> De informatie opgenomen in dit bericht kan vertrouwelijk zijn en
> is uitsluitend bestemd voor de geadresseerde. Indien u dit bericht
> onterecht ontvangt wordt u verzocht de inhoud niet te gebruiken en
> de afzender direct te informeren door het bericht te retourneren.
> ==================================================================
> The information contained in this message may be confidential
> and is intended to be exclusively for the addressee. Should you
> receive this message unintentionally, please do not use the contents
> herein and notify the sender immediately by return e-mail.
>
>
> ==================================================================
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=5577&t=5517
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
