Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: New network bandwidth requirements
Special Forums IP Networking New network bandwidth requirements Post 302823885 by Just Ice on Thursday 20th of June 2013 02:29:11 AM
Old 06-20-2013
ever heard of the new highway? some people built a new highway because the old road was getting too small for the amount of traffic on it. so everybody was happy when the new highway was done. while the highway was still new, everybody said it was great that they had that much space to run and cruise in it. so everybody's friends and families soon started driving on the new highway until eventually everybody was thinking the highway was now too small and they needed another new highway ...

moral of the story? if you do not have enough, you will soon be looking for some more. if you have more than enough, people will start filling it up sooner or later.


as i almost always had to guesstimate things because of the lack of access to network metrics, i look at current load and whether that load has increased over the years as well as whether there are plans to put in more network-hungry apps/devices (i.e., video conferencing). if current load has been increasing, i look at the amount and rate of the increase.

as an example: 10 users at a remote site using 5 applications at the corporate site at year 1 and 50 users (max capacity) at the remote site using same 5 applications at the corporate site at year 5 -- only the user base increased. minus any planned implementation of network-hungry apps/devices and no complaints of performance hits even with the increase in the user load, i will not be looking to upgrade within the next 2 years unless the company just wanted to spend money just because.

for a site with an unknown load, look at the kind and size of the population the site most likely will be hosting as well as the apps/devices they will be using and the planned infrastructure physically located at the site. if you have no other site that is currently comparable to the new site, check how many seats are planned in the space as well as how big is the data center/room and correlate that with the business and/or group that will be located there (i.e., software development, banking back-office, internet research, etc.). decide the approximate load and plan accordingly. if you are still at a loss and still cannot decide, ask the project manager how much they have budgeted for the whole project and just reasonably ask for as much as they can give you.
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

bandwidth check?

I'm on T1, is there any way i can check my acctual bandwidth? Thank you all (3 Replies)
Discussion started by: solvman
3 Replies

2. IP Networking

Bandwidth Caping With PF

i have two questions actually... i need to block certain ports with openbsd and PF in a large lan, the firewall is supposed to be a router between the internet and the first lan switch. first of all, would this work at all in theory? second, i tried doing this a few days ago at a huge lan but i... (2 Replies)
Discussion started by: nocturnal
2 Replies

3. IP Networking

Bandwidth Regulation

Hello, I was wondering how one would go about regulating bandwidth of a server running RH Linux 8.0 and Apache. I am running a webserver, and want only one person to be able to download one file at a time. So, they can't click about 10 files and soak up lots of bandwidth. Plus, I would like to cap... (2 Replies)
Discussion started by: Phobos
2 Replies

4. UNIX for Dummies Questions & Answers

Bandwidth Monitoring.

Hi, I'm looking for some way to bring up in a shell window a realtime (or something that updates at 10 second intervals or whatever) bandwidth monitor. I just want something that shows me how much kbps is going in and how much is going out of each interface. Is there something that might... (2 Replies)
Discussion started by: d11wtq
2 Replies

5. UNIX for Advanced & Expert Users

Bandwidth monitoring

Hi Gurus, Need to have a way to monitor Bandwidth utilization on Linux servers, running squid . Have worked on 3rd party monitoring tools like Bandwidth d, Nagios etc. But we are working to find out a way to monitor this through Sitescope, for which we need to find a file where the... (4 Replies)
Discussion started by: Crazy_murli
4 Replies

6. IP Networking

bandwidth

Hi, 1-What is bandewidth ? 2-How to calculate ? 3-How to measure ? Any free software to measure it ? Many thanks. (4 Replies)
Discussion started by: big123456
4 Replies

7. IP Networking

Bandwidth montor

Hi all I have been running iptraf on a linux box for a few months monitoring bandwidth utilization realtime from mac address with port mirroring. Now I want to graph these bandwidth utilization. Is MRTG the right software? Any ideas? (4 Replies)
Discussion started by: palm101
4 Replies

8. Linux

Network bandwidth Manager

Dear Engineer, Can anyone please inform me some application name like (CBQ) to control network bandwidth and please provide me the url to configure it. With Best Regards, Md. Abdullah-Al Kauser (0 Replies)
Discussion started by: makauser
0 Replies

9. Red Hat

Network bandwidth Manager

Dear Engineer, Can anyone please inform me some application name like (CBQ) to control network bandwidth and please provide me the url to configure it. With Best Regards, Md. Abdullah-Al Kauser (1 Reply)
Discussion started by: makauser
1 Replies

LEARN ABOUT HPUX

nfs2_nra

nfs2_nra(5)							File Formats Manual						       nfs2_nra(5)

NAME

       nfs2_nra - control the number of read-ahead operations queued by the NFS version 2 client when sequentially accessing a file

VALUES

   Failsafe
   Default
   Allowed values
   Recommended values
       A warning will be issued at runtime if the tunable is set to a value greater than 16 since this is beyond the tested limit.

       This is not a serious warning but just an information message for the administrator.

DESCRIPTION

       controls  the  number  of read-ahead operations that are queued by the NFS version 2 client when sequential access to a file is discovered.
       These read-ahead operations increase concurrency and read throughput.  Each read-ahead request is generally for 8192 bytes of file data.

   Who Is Expected to Change This Tunable?
       The distributed file system administrator should examine this value depending on network bandwidth and memory pressure on the client.

   Restrictions on Changing
       The tunable is dynamic; tuning will take effect immediately on the running system.

   When Should the Value of This Tunable Be Raised?
       If the network is very high bandwidth and the client and server have sufficient resources, increase this value to more effectively  utilize
       the available network bandwidth, the client resources, and the server resources.

   What Are the Side Effects of Raising the Value?
       Tuning incorrectly based on network bandwidth can cause performance problems.

   When Should the Value of This Tunable Be Lowered?
       In a very low bandwidth network, you might want to decrease this value so the NFS client does not overload the network.

   What Are the Side Effects of Lowering the Value?
       Tuning incorrectly based on network bandwidth can cause performance problems.

WARNINGS

       All  HP-UX kernel tunable parameters are release specific.  This parameter may be removed or have its meaning changed in future releases of
       HP-UX.

       Installation of optional kernel software, from HP or other vendors, may cause changes to tunable  parameter  values.   After  installation,
       some  tunable  parameters may no longer be at the default or recommended values.  For information about the effects of installation on tun-
       able values, consult the documentation for the kernel software being installed.	For information about optional kernel  software  that  was
       factory installed on your system, see at

AUTHOR

       was developed by Sun Microsystems, Inc.

SEE ALSO

       kctune(1M), sam(1M), gettune(2), settune(2), nfs3_nra(5), nfs4_nra(5), values(5).

							     Tunable Kernel Parameters						       nfs2_nra(5)
All times are GMT -4. The time now is 03:01 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy