?
Solved

10GB switch - and increased speed

Posted on 2014-04-06
9
Medium Priority
?
411 Views
Last Modified: 2014-05-07
Hi,

Hypothetical. I have traffic utilization of 1GB NIC at say 20% average- bursting to max of 40%

I replace with 10GB switch and NICs. - Will I see improved speed and performance at all?

Or will I just use 2% of 10GB and max 4% of 10GB on a burst?

Can someone please give technical answer. I know there are other benefits to 10GB in consolidation of number of NICs required in VM environment etc - I'm purely after an explanation or confirmation of what performance/speed gain I will get given my current utilization Thanks
0
Comment
Question by:philb19
9 Comments
 
LVL 10

Expert Comment

by:Korbus
ID: 39980921
Your math is correct, assuming no change in traffic volume (200MB avg, 400MB max), you will simply see 2% avg and 4% max of 10GB after upgrade.
0
 
LVL 1

Author Comment

by:philb19
ID: 39980924
ok thanks - so no performance gain whatsoever?
0
 
LVL 10

Expert Comment

by:Korbus
ID: 39980925
Well, It may be a mistake to assume constant traffic volume:  your computers can get and send responses faster-  thus they may generate MORE traffic per time unit.  Application specific, I guess.
0
What Kind of Coding Program is Right for You?

There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

 
LVL 1

Author Comment

by:philb19
ID: 39980935
"your computers can get and send responses faster- "

ok this is getting to my point - How do they do this? so I assume the 10GB is not just the size of the pipe. Its pushing data faster due to the 10GB chipsets? so faster processing on the NIC and switch?
0
 
LVL 10

Expert Comment

by:Korbus
ID: 39980949
A "response" is a number of bytes in length, lets say 1KB.
With a 1GB network this data can be transferred in 1 milli seconds. (check my math)
With a 10GB network this 1KB can be transferred 10x faster, 0.01 milliseconds.

Note: 1 milisecond is a lot of time for a CPU to process a reply

Hmm, is that clear at all?
0
 
LVL 1

Author Comment

by:philb19
ID: 39980962
ok thanks again. I have read online that 90% of SOHO business's run fine on 1GB full duplex LAN.

My issue is whether the network is "the bottlenecK' - And from my research with a small VLAN 20-30 PC 1GB full duplex - this is rarely the case.

The arguement from developers and DBA's is to get 10GB LAN. However I see only 30-40% utilization on 1GB - Now my assumption is that (we  do have Oracle)  the application layer - poor SQL coding is more than likely the cause of slow oracle business application performance rather than the LAN wire speed. - I'm trying to gauge whether 10GB will make any difference at all. I don't believe the clients are waiting for network - so what will 10GB give? though I could be wrong. - thoughts?
0
 
LVL 10

Accepted Solution

by:
Korbus earned 2000 total points
ID: 39980966
I guess I would ask how many servers and clients you have.
I doubt the amount of traffic requested by/ sent from clients, as generated by users would be effected by a increase in network bandwidth.
However, multiple database severs, all working in a cluster (where they are waiting on each others response):  well, an increase in bandwidth there might very well help.  You CAN connected only severs together with a 10x network, to save on money and still help performance.
If you are running a single server, then chasing network stuff does indeed seem silly.

In general, I would suggest making sure your database configuration is optimized just-so for the application, before looking at network.
0
 
LVL 85

Expert Comment

by:David Johnson, CD, MVP
ID: 39980971
you will see an improvement only if the network speed is your bottleneck.  Perhaps your bottleneck is somewhere else.

For instance, I noticed a huge improvement by putting my sql server data files, log files, temp files all on different spindles (physical drives), the log files went to an SSD, this resulted in a 400% increase on my System Center Server
0
 
LVL 57

Expert Comment

by:giltjr
ID: 39982048
I agree with David Johnson, CD, you will only see an improvement if the network is your bottle neck.

What is the time period you are seeing 30-40% network utilization?  Is this an 8 hour avg.?

Remember at any specific point in time a single network connection is either 100% utilized or 0% utilized.  As data is flowing over the wire it is traveling at 100% of the network connection maximum speed.  

An avg. tells you what percentage of the time the network was 100% utilized.    So network connection that is avg. 30-40% utilization is 100% utilized 30-40% of the time and zero% utilized 60-70% of the time.
0

Featured Post

Building an Effective Phishing Protection Program

Join Director of Product Management Todd OBoyle on April 26th as he covers the key elements of a phishing protection program. Whether you’re an old hat at phishing education or considering starting a program -- we'll discuss critical components that should be in any program.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

This article is in regards to the Cisco QSFP-4SFP10G-CU1M cables, which are designed to uplink/downlink 40GB ports to 10GB SFP ports. I recently experienced this and found very little configuration documentation on how these are supposed to be confi…
This article explains the fundamentals of industrial networking which ultimately is the backbone network which is providing communications for process devices like robots and other not so interesting stuff.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

579 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