Solved

Average mbps on Gigabit Network

Posted on 2010-11-10
4
1,061 Views
Last Modified: 2012-05-10
We have a full gigabit network (GB NIC’s, GB switches, etc…) I was performing some network testing using LAN Speed Test, and found that on average we are getting 400-800mbps ‘Read’ speed across the network. Obviously the 400mbps is low but is 800mbps average, or should we be getting closer to the 1000mbps? Also, are there any tools that you would recommend for determining where the bottleneck could be? Thanks.
0
Comment
Question by:kpurchase
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 10

Accepted Solution

by:
Tyler Laczko earned 250 total points
ID: 34103853
There are many things that could contribute to not 1000 mbps

cable length, amount of traffic, collisions, etc, etc.

A GB network will never be running at 1000mbps.

Your network at 800mbps is running great.
0
 
LVL 1

Expert Comment

by:effinay
ID: 34103866
There are a LOT of variables that will affect actual throughput on your network. A good, detailed read is available here: http://en.wikipedia.org/wiki/Throughput

That can help explain theoretical throughput versus measured or sustained throughput on any given network.
0
 
LVL 2

Assisted Solution

by:leftcase
leftcase earned 250 total points
ID: 34103872
Hard drive speed can also be a bottleneck when measuring the speed of file transfer. Try testing both the read and write speeds of server and client hard disk speeds to determine the maximum transfer rate (as you can't transfer information any faster than your drive can read or write it).

Check out this article at Tom's Hardware overview of gigabit networks and where the bottlenecks can be found.: http://www.tomshardware.com/reviews/gigabit-ethernet-bandwidth,2321.html

A gigabit network will have a 125 MB/s limitation, so getting 800 mbps or 100 MB/s is pretty close to that.
0
 
LVL 1

Expert Comment

by:effinay
ID: 34103885
I agree with professionalcomputersolutions... 800mbps is pretty darn good taking into consideration tcp overhead and the other variables described.
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
I had an issue with InstallShield not being able to use Computer Browser service on Windows Server 2012. Here is the solution I found.
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

696 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question