NetEqualizer Field Guide to Network Capacity Planning


I recently reviewed an article that covered bandwidth allocations for various Internet applications. Although the information was accurate, it was very high level and did not cover the many variances that affect bandwidth consumption. Below, I’ll break many of these variances down, discussing not only how much bandwidth different applications consume, but the ranges of bandwidth consumption, including ping times and gaming, as well as how our own network optimization technology measures bandwidth consumption.

E-mail

Some bandwidth planning guides make simple assumptions and provide a single number for E-mail capacity planning, oftentimes overstating the average consumption. However, this usually doesn’t provide an accurate assessment. Let’s consider a couple of different types of E-mail.

E-mail — Text

Most E-mail text messages are at most a paragraph or two of text. On the scale of bandwidth consumption, this is negligible.

However, it is important to note that when we talk about the bandwidth consumption of different kinds of applications, there is an element of time to consider — How long will this application be running for? So, for example, you might send two kilobytes of E-mail over a link and it may roll out at the rate of one megabit. A 300-word, text-only E-mail can and will consume one megabit of bandwidth. The catch is that it generally lasts just a fraction of second at this rate. So, how would you capacity plan for heavy sustained E-mail usage on your network?

When computing bandwidth rates for classification with a commercial bandwidth controller such as a NetEqualizer, the industry practice is to average the bandwidth consumption for several seconds, and then calculate the rate in units of kilobytes per second (Kbs).

For example, when a two kilobyte file (a very small E-mail, for example) is sent over a link for a fraction of a second, you could say that this E-mail consumed two megabits of bandwidth. For the capacity planner, this would be a little misleading since the duration of the transaction was so short. If you take this transaction average over a couple of seconds, the transfer rate would be just one kbs, which for practical purposes, is equivalent to zero.

E-mail with Picture Attachments

A normal text E-mail of a few thousand bytes can quickly become 10 megabits of data with a few picture attachments. Although it may not look all the big on your screen, this type of E-mail can suck up some serious bandwidth when being transmitted. In fact, left unmolested, this type of transfer will take as much bandwidth as is available in transit. On a T1 circuit, a 10-megabit E-mail attachment may bring the line to a standstill for as long as six seconds or more. If you were talking on a Skype call while somebody at the same time shoots a picture E-mail to a friend, your Skype call is most likely going to break up for five seconds or so. It is for this reason that many network operators on shared networks deploy some form of bandwidth contorl or QoS as most would agree an E-mail attachment should not take priority over a live phone call.

E-mail with PDf Attachment

As a rule, PDF files are not as large as picture attachments when it comes to E-mail traffic. An average PDF file runs in the range of 200 thousand bytes whereas today’s higher resolution digital cameras create pictures of a few million bytes, or roughly 10 times larger. On a T1 circuit, the average bandwidth of the PDF file over a few seconds will be around 100kbs, which leaves plenty of room for other activities. The exception would be the 20-page manual which would be crashing your entire T1 for a few seconds just as the large picture attachments referred to above would do.

Gaming/World of Warcraft

There are quite a few blogs that talk about how well World of Warcraft runs on DSL, cable, etc., but most are missing the point about this game and games in general and their actual bandwidth requirements. Most gamers know that ping times are important, but what exactly is the correlation between network speed and ping time?

The problem with just measuring speed is that most speed tests start a stream of packets from a server of some kind to your home computer, perhaps a 20-megabit test file. The test starts (and a timer is started) and the file is sent. When the last byte arrives, a timer is stopped. The amount of data sent over the elapsed seconds yields the speed of the link. So far so good, but a fast speed in this type of test does not mean you have a fast ping time. Here is why.

Most people know that if you are talking to an astronaut on the moon there is a delay of several seconds with each transmission. So, even though the speed of the link is the speed of light for practical purposes, the data arrives several seconds later. Well, the same is true for the Internet. The data may be arriving at a rate of 10 megabits, but the time it takes in transit could be as high as 1 second. Hence, your ping time (your mouse click to fire your gun) does not show up at the controlling server until a full second has elapsed. In a quick draw gun battle, this could be fatal.

So, what affects ping times?

The most common cause would be a saturated network. This is when your network transmission rates of all data on your Internet link exceed the links rated capacity. Some links like a T1 just start dropping packets when full as there is no orderly line to send out waiting packets. In many cases, data that arrive to go out of your router when the link is filled just get tossed. This would be like killing off excess people waiting at a ticket window or something. Not very pleasant.

If your router is smart, it will try to buffer the excess packets and they will arrive late. Also, if the only thing running on your network is World of Warcraft, you can actually get by with 120kbs in many cases since the amount of data actually sent of over the network is not that large. Again, the ping time is more important and a 120kbs link unencumbered should have ping times faster than a human reflex.

There may also be some inherent delay in your Internet link beyond your control. For example, all satellite links, no matter how fast the data speed, have a minimum delay of around 300 milliseconds. Most urban operators do not need to use satellite links, but they all have some delay. Network delay will vary depending on the equipment your provider has in their network, and also how and where they connect up to other providers as well as the amount of hops your data will take. To test your current ping time, you can run a ping command from a standard Windows machine

Citrix

Applications vary widely in the amount of bandwidth consumed. Most mission critical applications using Citrix are fairly lightweight.

YouTube Video — Standard Video

A sustained YouTube video will consume about 500kbs on average over the video’s 10-minute duration. Most video players try to store the video up locally as fast as they can take it. This is important to know because if you are sizing a T1 to be shared by voice phones, theoretically,  if a user was watching a YouTube video, you would have 1 -megabit left over for the voice traffic. Right? Well, in reality, your video player will most likely take the full T1, or close to it, if it can while buffering YouTube.

YouTube — HD Video

On average, YouTube HD consumes close to 1 megabit.

See these other Youtube articles for more specifics about YouTube consumption

Netflix – Movies On Demand

Netflix is moving aggressively to a model where customers download movies over the Internet, versus having a DVD sent to them in the mail.  In a recent study, it was shown that 20% of bandwidth usage during peak in the U.S. is due to Netflix downloads. An average a two hour movie takes about 1.8 gigabits, if you want high-definition movies then its about 3 gigabits for two hours.   Other estimates are as high as 3-5 gigabits per movie.

On a T1 circuit, the average bandwidth of a high-definition Netflix movie (conversatively 3 gigabits/2 hours) over one second will be around 400kbs, which consumes more than 25% of the total circuit.

Skype/VoIP Calls

The amount of bandwidth you need to plan for a VoIP network is a hot topic. The bottom line is that VoIP calls range from 8kbs to 64kbs. Normally, the higher the quality the transmission, the higher the bit rate. For example, at 64kbs you can also transmit with the quality that one might experience on an older style AM radio. At 8kbs, you can understand a voice if the speaker is clear and pronunciates  their words clearly.  However, it is not likely you could understand somebody speaking quickly or slurring their words slightly.

Real-Time Music, Streaming Audio and Internet Radio

Streaming audio ranges from about 64kbs to 128kbs for higher fidelity.

File Transfer Protocol (FTP)/Microsoft Servicepack Downloads

Updates such as Microsoft service packs use file transfer protocol. Generally, this protocol will use as much bandwidth as it can find. There are several limiting factors for the actual speed an FTP will attain, though.

  1. The speed of your link — If the factors below (2 and 3) do not come into effect, an FTP transfer will take your entire link and crowd out VoIP calls and video.
  2. The speed of the senders server — There is no guarantee that the  sending serving is able to deliver data at the speed of your high speed link. Back in the days of dial-up 28.8kbs modems, this was never a factor. But, with some home internet links approaching 10 megabits, don’t be surprised if the sending server cannot keep up. During peak times, the sending server may be processing many requests at one time, and hence, even though it’s coming from a commercial site, it could actually be slower than your home network.
  3. The speed of the local receiving machine — Yes, even the computer you are receiving the file on has an upper limit. If you are on a high speed university network, the line speed of the network can easily exceed your computers ability to take up data.

While every network will ultimately be different, this field guide should provide you with an idea of the bandwidth demands your network will experience. After all, it’s much better to plan ahead rather than risking a bandwidth overload that causes your entire network to come to a hault.

Related Article a must read for anybody upgrading their Internet Pipe is our article on Contention Ratios

Created by APconnections, the NetEqualizer is a plug-and-play bandwidth control and WAN/Internet optimization appliance that is flexible and scalable. When the network is congested, NetEqualizer’s unique “behavior shaping” technology dynamically and automatically gives priority to latency sensitive applications, such as VoIP and email. Click here for a full price list.

Other products that classify bandwidth

An Easy Way to Block/Interfere with Skype?


Art Reisman CTO www.netequalizer.com By Art Reisman

I got a call from a customer the other day who claimed that their NetEqualizer was working great except that it was interfering with their Skype calls, and he wanted us to make it stop.

Upon further investigation, we determined the NetEqualizer was  not interfering with his Skype calls at all. And then it hit me…His upstream ISP must be interrupting them. I can’t be sure of this, but there really was no other explanation. His access was good and we checked a couple of Skype calls and their bandwidth load was well below the threshold of anything the NetEqualizer would touch by design.

Then I had another “Aha!” moment while looking at their Skype streams on our built-in sniffer. The calls seemed to stay fairly steady in a tight range around 16kbs. It would be very easy and low cost to target streams in this range and periodically drop some packets, enough to make the call sound horrific while leaving any non-streaming media in that bandwidth range alone. I have no intention of tweaking our NetEqualizer to fill this mission,  however I did some quick research on the subject and did not come up with anything to make me think it would not work. If you are a Skype geek feel free to comment.

To add some context, here’s a link to an article I wrote a while back on the subject of blocking Skype: Blocking Skype Won’t Be Easy.

Nine Tips And Tricks To Speed Up Your Internet Connection


By Eli Riles
Eli Riles is a retired insurance agent from New York. He is a self-taught expert in network infrastructure. He spends half the year traveling and visiting remote corners of the earth. The other half of the year you’ll find him in his computer labs testing and tinkering with the latest network technology.  For questions or comments please contact him at
admin@netequalizer.com

Updated 3/3/2013 – We are now up to sixteen (16) tips!
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Although there is no way to actually make your true Internet speed faster, here are some tips for home and corporate users that can make better use of the bandwidth you have, thus providing the illusion of a faster pipe.

1) Caching — How  does it work and is it a good idea?

Offered by various vendors and built into Internet Explorer, caching can be very effective in many situations. Caching servers have built-in intelligence to store the most recently and most frequently requested information, thus preventing future requests from traversing a WAN/Internet link unnecessarily.

Many web servers keep a time stamp of their last update to data, and browsers such as the popular Internet Explorer will check the time stamp on the host server. If the page time stamp has not changed since the last time you accessed the page, IE will grab it and present a local stored copy of the Web page (from the last time you accessed the page), saving the time it would take to load the page from across the Internet.

So what is the downside of caching?

There are two main issues that can arise with caching:

a) Keeping the cache current. If you access a cached page that is not current, then you are at risk of getting old and incorrect information. Some things you may never want to be cached, for example the results of a transactional database query. It’s not that these problems are insurmountable, but there is always the risk that the data in cache will not be synchronized with changes. I personally have been misled by old data from my cache on several occasions.

b) Volume. There are some 100 million Web sites out on the Internet. Each site contains upwards of several megabytes of public information. The amount of data is staggering and even the smartest caching scheme cannot account for the variation in usage patterns among users and the likelihood they will hit an uncached page.

Recommended: Related article on how ISPs use caching to speed up NetFlix and Youtube Videos.

For information on turning off caching, click here.

2) Time of day does make a difference

During peak internet Usage times, 5 PM to Midnight local time, your upstream provider is also most likely congested.  If you have a bandwidth intensive task to do, such as downloading an update for your IPAD, you can likely get a much faster download by doing your download earlier in the day. I have even noticed that the more obscure YouTube’s and videos,  have problems running at peak traffic times. My upstream provider does a good job with Netflix and popular videos during peak hours ( these can be found in their cache), but if I get something that is not likely stored in a local copy on their servers the video will lag during peak times. ( see our article on caching)

3) Requesting “text-only” from your browser

If you are stuck with a dial-up or slower broadband connection, your  browser likely has an  option to load text-only. If you are a power user that’s gaming or watching YouTube, text-only will obviously have no effect on these activities, but it will speed up general browsing and e-mail.  Most web pages are loaded with graphics which take up the bulk of the load time, so switching to text-only will eliminate the graphics and save you quite a bit of time.

4) Install a bandwidth controller to make sure no single connection dominates your bandwidth.

Everything you do on the Internet creates a connection from inside your network to the Internet, and all of these connections compete for the limited amount of bandwidth your ISP provides.

Your router (cable modem) connection to the Internet provides first come/first serve service to all the applications trying to access the Internet. To make matters worse, the heavier users, the ones with the larger persistent downloads, tend to get more than their fair share of router cycles.  Large downloads are like the school yard bully, they tend to butt in line, and not play fair.

Read the full article.

5) Turn off the other computers in the house

Many times, even during the day when the kids are off to school, I’ll be using my Skype phone and the connection will break up.  I have no idea what exactly the kids’ computers are doing, but if I log them off the Internet, things get better with the Skype call every time. In a sense, it’s a competition for limited bandwidth resources, so, decreasing the competition will usually boost your computer’s performance.

6) Kill background tasks on your computer

You should also try to turn off any BitTorrent or background tasks on your computer if you are having trouble while trying to watch a video or make a VoIP call.  Use your task bar to see what applications are running and kill the ones you don’t want.  Although this is a bit drastic, you may just find that it makes a difference. You’d be surprised what’s running on your computer without you even knowing it (or wanting it).

For you gamers out there, this also means turning off the audio component on your games if you do not need it for collaboration.

7) Test your Internet speed

One of the most common issues with slow internet service is that your provider is not giving you the speed/bandwidth that they have advertised.  Here is a link to our article on testing your Internet speed, which is a good place to start.

Note:  Comcast has adopted a 15 minute Penalty box in some markets. Your initial speed tests will likely show no degradation, but if you persist at watching high-definition video for more than 15 minutes, you may get put into their Penalty box.  This practice helps preserve a limited resource in some crowded markets.  We note it here because we have heard reports of people happily watching YouTube videos only to have service degrade.

Related Articles: The real meaning of Comcast generosity.

8) Make sure you are not accidentally connected to a weak access point signal

There are several ways an access point can slow down your connection a bit.  If the signal between you and the access point is weak, the access point will automatically downgrade its service to a slower speed. This happens to me all the time. My access point goes on the blink (needs to be re-booted) and my computer connects to the neighbor’s with a weaker signal. The speed of my connection on the weaker signaled AP is quite variable.  So, if you are on wireless in a densely populated area, check to make sure what signal you are connected  to.

9) Deploy a fairness device to smooth out those rough patches during contentious busy hours

Yes, this is the NetEqualizer News Blog, but with all bias aside, these things work great. If you are in an office sharing an Internet feed with various users, the NetEqualizer will keep aggressive bandwidth users from crowding others out.  No, it cannot create additional bandwidth on your pipe, but it will eliminate the gridlock caused  by your colleague  in the next cubicle downloading a Microsoft service pack.

Yes, there are other  devices on the market (like your fancy router), but the NetEqualizer was specifically designed for this mission.

10) Kill your virus protection software

With the recent outbreak of the H1N1 virus, it reminded me of  how sometimes the symptoms and carnage from a vaccine are worse than the disease it purports to cure.  Well, the same holds true for your virus protection software. Yes, viruses are real and can take down your computer, but so can a disk crash, which is also inevitable.  You must back up your critical data regularly.  However, that virus software seems to dominate more resources on my desktop than anything else.  I no longer use anything and could not be happier.  But be sure to use a reliable back-up (as you will need to rebuild your computer now and then, which I find a better alternative than running a slow computer all of the time).

11) Set a TOS bit to provide priority

A TOS bit  is a special bit within an IP packet that directs routers to give preferential treatment to selected packets.  This sounds great, just set a bit and move to the front of the line for faster service.  As always, there are limitations.

- How does one set a TOS bit?
It seems that only very special enterprise  applications, like a VoIP PBX, actually set and make use of TOS bits. Setting the actual bit is not all that difficult if you have an application that deals with the network layer, but most commercial applications just send their data on to the host computer’s clearing house for data, which in turn puts it into IP packets without a TOS bit set.  After searching around for a while, I just don’t see any literature on being able to set a TOS bit at the application level. For example, there are a couple of forums where people mention setting the TOS bit in Skype but nothing definitive on how to do it.

- Who enforces the priority for TOS packets?
This is a function of routers at the edge of your network, and all routers along the path to wherever the IP packet is going. Generally, this limits the effectiveness of using a TOS bit to networks that you control end-to-end. In other words, a consumer using a public Internet connection cannot rely on their provider to give any precedence to TOS bits, hence this feature is relegated to enterprise networks within a business or institution.

-  Incoming traffic generally cannot be controlled.
The subject of when you can and cannot control a TOS bit does get a bit more involved.  We have gone over this in more detail in a separate  article.

12) Avoid Quota Penalties

Some providers are implementing Quotas where they slow you down if you use too much data over a period of time.  If you know that you have a large set of downloads to do, for example synching your device with iTunes Cloud, go to a library and use their free service. Or, if you are truly without morals, logon to your neighbor’s wireless network and do your synch.

13) Consider Application Shaping?

Note: Application shaping is an appropriate topic for corporate IT administrators and is generally not a practical solution for a home user.  Makers of application shapers include Blue Coat (Packeteer) and Allot (NetEnforcer), products that are typically out of the price range for many smaller networks and home users.

One of the most popular and intuitive forms of optimizing bandwidth is a method called “application shaping”, with aliases of “deep packet inspection”, “layer 7 shaping”, and perhaps a few others thrown in for good measure. For the IT manager that is held accountable for everything that can and will go wrong on a network, or the CIO that needs to manage network usage policies, this at first glance may seem like a dream come true.  If you can divvy up portions of your WAN/Internet link to various applications, then you can take control of your network and ensure that important traffic has sufficient bandwidth, right?  Well, you be the judge…

At the center of application shaping is the ability to identify traffic by type.  For example, identifying between Citrix traffic, streaming audio, Kazaa peer-to-peer, or something else.  However, this approach is not without its drawbacks.

Drawback #1: Applications can purposely use non-standard ports
Many applications are expected to use Internet ports when communicating across the Web. An Internet port is part of an Internet address, and many firewall products can easily identify ports and block or limit them. For example, the “FTP” application commonly used for downloading files uses as standard the well-known “port 21″. The fallacy with this scheme, as many operators soon find out, is that there are many applications that do not consistently use a standard fixed port for communication. Many application writers have no desire to be easily classified. In fact, they don’t want IT personnel to block them at all, so they deliberately design applications to not conform to any formal port assignment scheme. For this reason, any product that aims to block or alter application flows by port should be avoided if your primary mission is to control applications by type.

So, if standard firewalls are inadequate at blocking applications by port, what can help?

As you are likely aware, all traffic on the Internet travels around in what is called an IP packet. An IP packet can very simply be thought of as a string of characters moving from Computer A to Computer B. The string of characters is called the “payload,” much like the freight inside a railroad car. On the outside of this payload, or data, is the address where it is being sent. These two elements, the address and the payload, comprise the complete IP packet.

In the case of different applications on the Internet, we would expect to see different kinds of payloads. For example, let’s take the example of a skyscraper being transported from New York to Los Angeles. How could this be done using a freight train? Common sense suggests that one would disassemble the office tower, stuff it into as many freight cars as it takes to transport it, and then when the train arrived in Los Angeles, hopefully the workers on the other end would have the instructions on how to reassemble the tower.

Well, this analogy works with almost anything that is sent across the Internet, only the payload is some form of data, not a physical hunk of bricks, metal and wires. If we were sending a Word document as an e-mail attachment, guess what, the contents of the document would be disassembled into a bunch of IP packets and sent to the receiving e-mail client where it would be re-assembled. If I looked at the payload of each Internet packet in transit, I could actually see snippets of the document in each packet and could quite easily read the words as they went by.

At the heart of all current application shaping products is special software that examines the content of Internet packets (aka “deep packet inspection”), and through various pattern matching techniques, determines what type of application a particular flow is. Once a flow is determined, then the application shaping tool can enforce the operator’s policies on that flow. Some examples of policy are:

Limit AIM messenger traffic to 100kbs
Reserve 500kbs for Shoretell voice traffic

The list of rules you can apply to traffic types and flow is unlimited.

Drawback #2: The number of applications on the Internet is a moving target.
The best application shaping tools do a very good job of identifying several thousand of them, and yet there will always be some traffic that is unknown (estimated at 10 percent by experts from the leading manufacturers). The unknown traffic is lumped into the unknown classification and an operator must make a blanket decision on how to shape this class. Is it important? Is it not? Suppose the important traffic was streaming audio for a webcast and is not classified. Well, you get the picture. Although theory behind application shaping by type is a noble one, the cost for a company to stay up-to-date is large and there are cracks.

Drawback #3: The spectrum of application types is not static
Even if the application spectrum could be completely classified, the spectrum of applications constantly changes. You must keep licenses current to ensure you have the latest in detection capabilities. And even then it can be quite a task to constantly analyze and change the mix of policies on your network. As bandwidth costs lessen, how much human time should be spent divvying up and creating ever more complex policies to optimize your WAN traffic?

Drawback #4: Net neutrality is comprised by application shaping.
Techniques used in application shaping have become controversial on public networks, with privacy issues often conflicting with attempts to ensure network quality.

Based on these drawbacks, we believe that application shaping is not the dream come true that it may seem at first glance.  Once CIOs and IT Managers are educated on the drawbacks, they tend to agree.

14) Bypass that local consumer reseller

This option might be a little bit out of the price range of the average consumer, and it may not be practical logistically -  but if you like to do things out-of-the-box, you don’t have to buy Internet service from your local cable operator or phone company, especially if you are in a metro area.  Many customers we know have actually gone directly to a Tier 1 point of presence (backbone provider) and put in a radio backhaul direct to the source.  There are numerous companies that can set you up with a 40-to-60 megabit link with no gimmicks.

15) Speeding up your iPhone

Ever been in a highly populated area with 3 or 4 bars and still your iPhone access slows to crawl ?

The most likely reason for this problem is congestion on the provider line. 3g and 4g networks all have a limited sized pipe from the nearest tower back to the Internet. It really does not matter what your theoretical data speed is, when there are more people using the tower than the back-haul pipe can handle, you can temporarily lose service, even when your phone is showing three or four bars.

Unfortunately, you only have a couple of options in this situation. If you are in a stadium with a large crowd, your best bet is to text during the action.  If you wait for a timeout or end of the game,  you’ll find this corresponds to the times when the network slows to a crawl,  so try to finish your access before the last out of the game or the end of the quarter. Pick a time when you know the majority of people are not trying to send data.

Get away from the area of congestion. I have experienced complete lockout of up to 30 minutes, when trying to text, as a sold out stadium emptied out.  In this situation my only chance was  to walk about  1/2 mile or so from the venue to get a text out. Once away from the main stadium, my iPhone connected to a tower with a different back haul away from the congested stadium towers.

Shameless plug: If you happen to be a provider or know somebody that works for a provider  please tell them to call us and we’d be glad to explain the simplicity of equalizing and how it can restore sanity to a congested wireless backhaul.

16) Protocol Spoofing

Note:  This method is applied to Legacy Database servers doing operations over a WAN.  Skip this tip if you are a home user.

Historically, there are client-server applications that were developed for an internal LAN. Many of these applications are considered chatty. For example, to complete a transaction between a client and server, tens of messages may be transmitted when perhaps one or two would suffice. Everything was fine until companies, for logistical and other reasons, extended their LANs across the globe using WAN links to tie different locations together.

To get a better visual on what goes on in a chatty application, perhaps an analogy will help.  It’s like  sending family members your summer vacation pictures, and, for some insane reason, putting each picture in a separate envelope and mailing them individually on the same mail run. Obviously, this would be extremely inefficient, as chatty applications can be.

What protocol spoofing accomplishes is to fake out the client or server-side of the transaction and then send a more compact version of the transaction over the Internet, i.e. put all the pictures in one envelope and send it on your behalf, thus saving you postage.

You might ask why not just improve the inefficiencies in these chatty applications rather than write software to deal with the problem? Good question, but that would be the subject of a totally different article on how IT organizations must evolve with legacy technology, which is beyond the scale of the present article.

In Conclusion

Again, while there is no way to increase your true Internet speed without upgrading your service, these fourteen (15) tips can improve performance, and help you to get better results from the bandwidth that you already have.

You’re paying for it, so you might as well make sure it’s being used as effectively as possible. : )

Related Article on testing true video speed over the Internet

A great article from the tech guy regarding tips on dealing with your ISP

Other Articles on Speeding up Your Internet

Five tips and tricks to speed up your Internet

How to speed up your Internet Connection Without any Software

About APconnections

Created by APconnections, the NetEqualizer is a plug-and-play bandwidth control and WAN/Internet optimization appliance that is flexible and scalable. When the network is congested, NetEqualizer’s unique “behavior shaping” technology dynamically and automatically gives priority to latency sensitive applications, such as VoIP and email. Click here to request our full pricelist.

NetEqualizer Bandwidth Control Tech Seminar Video Highlights


Tech Seminar, Eastern Michigan University, January 27, 2009

This 10-minute clip was professionally produced January 27, 2009. It  gives a nice quick overview of how the NetEqualizer does bandwidth control while providing priority for VoIP and video.

The video specifically covers:

1) Basic traffic shaping technology and NetEqualizer’s behavior-based methods

2) Internet congestion and gridlock avoidance on a network

3) How peer-to-peer file sharing operates

4) How to counter the effects of peer-to-peer file sharing

5) Providing QoS and priority for voice and video on a network

6) A short comparison by a user (a university admin) who prefers NetEqualizer to layer-7 deep packet inspection techniques

Do Internet Service Providers give home field advantage to their VOIP?


By Art Reisman

Art Reisman CTO www.netequalizer.com

Editor’s note: Art Reisman is the CTO of APconnections. APconnections designs and manufactures the popular NetEqualizer bandwidth shaper.

The following article caught my attention this morning. Many of the ISPs that deploy our technology also provide their own VOIP service. Most have asked the question; can they make their in house VOIP offering work better than that offered by third parties such as Skype ? Fortunately, to date, we have taken the high road and talked them out of such a policy. We contend that protectionist strategies will eventually backfire. We have always proselytized if you have VOIP offering make sure it works well, price it well and your customers will stick with you.
Here is an excerpt from the Ars Technica article:

FCC wants to know if Comcast is interfering with VoIP

By Matthew Lasar | Published: January 19, 2009 – 10:25PM CT

Does Comcast give its own Internet phone service special treatment compared to VoIP competitors who use the ISP’s network? That’s basically the question that the Federal Communications Commission posed in a letter sent to the cable giant on Sunday.

Read on for the full article

Related Articles

The White lies ISPs tell about broadband speeds


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