How To Determine How Much Bandwidth Your Client Needs For Their Business Network Architecture

When determining the amount of bandwidth a client needs, you first have to understand why the client needs internet/WAN connectivity. Initially you want work with the client to develop an idea of what the client wants to get from the internal network, in other words develop a list of business drivers.

Does the company require*:

?Use of VOIP
?Are they using Voip now
?Will the use it in the future
?How many trunks do they currently support and how much bandwidth is currently being used at the core by those trunks
?Use of IP Telephony (voice to the desktop)
?If they are using IP telephony, are they using only SIP or are they using other protocols and other applications of the feature set on the phones and what are the manufacturers recommended guidelines on bandwidth consumption
?If they are not using IP telephony, do they know what protocols and applications of the feature set on the phones they will use, and what are the manufacturers recommended guidelines on bandwidth consumption
?What internal applications do they use currently
?What are the bandwidth requirements of those applications currently
?What are the manufacturer or developer's guidelines on how much bandwidth to use
?Does the client plan to add additional applications they know are heavy on bandwidth usage?
?Does the client use any security scanning that may take up resources?
?When do the scans occur and are those during peak time
?Do they plan to add security scanning, and if so where (the core or edge or across aggregation points)?
?Does the client currently use QOS, and if so have they manually queued traffic or are they using difserv?

*These are a good sample of questions, but in short, you are conducting a workshop to identify the business and technical drivers of the organization

You will also want to examine the current network design, identify current bandwidth usage across the network, identify bottlenecks, and where T circuits are being employed, where they are using MPLS or metro-e circuits, where they are using dark fiber, if any.

Ultimately you want to understand where their current problems lay from layer 1 and 2 perspectives based on the current design and then you will need to break the network down logically at layer 3 and 4 examining what protocols are being used and how they are being broadcasted across broadcast domains which can create sluggish communications. Is the client using VOIP and not using QOS, is the client using a lot of DHCP relay, are there multicasts being broadcast that are creating superfluous traffic, etc...

Once you have a clear picture of the current network configuration and you have base lined the network, and have identified their current issues via a gap analysis then you can move on to identifying "how much bandwidth they need" internally.

From an external perspective you need to simply perform a firewall analysis of inbound and outbound traffic and match that against the CIR of your ISP pipe(s). You may also want to extrapolate any new data gleaned from your research into the forecasted use of applications for additional bandwidth usage in the future.

So to summarize you will need to use the following methodology:

1. Identify the business requirements and drivers
2. Understand the technical requirements
3. Identify how data is being transported currently
4. Conduct an OSI based network analysis
5. Develop a Gap analysis with suggested solutions
6. Develop a high level plan and provide the customer with an estimated band width requirement based on evidentiary matter obtained in steps 1 - 5.

Michael is the owner of FreedomFire Communications....including DS3-Bandwidth.com and Business-VoIP-Solution.com. Michael also authors Broadband Nation where you're always welcome to drop in and catch up on the latest BroadBand news, tips, insights, and ramblings for the masses.

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C-002 HiPhone-Recent iPhone Clone With Shaking Dual Sim And Bluetooth Beating Apple At Its Own Game

It's been almost a solid year that the iPhone clones have been beating Apple at its own game. The latest clone, the C-002 HiPhone, is among the most popular, and most convincing of the bunch. Like all of the clones, it supports two sim cards at one time, supports MMS, and has a high quality built in camera that takes both photo and video footage. It also has a removable battery and additional speakers. Here are its features at a glance:

1. 3.53 high resolution touchscreen with finger touch;

2. Dual SIM slots and supports SIM card switching without having to turn off the phone;

3. Triband GSM (900/1800/1900MHz) USA GSM standard;

4. Web browsing, WAP setting, and web address management;

5. Always unlocked;

6. SMS, MMS, voicemail and cell broadcast;

7. MP3, MP4, file playing, recording. (Read you can record phone calls);

8. Video capturing;

9. Hands free speaker phone with 3D sound;

10. Bluetooth;

11. TF card supported;

12. Diversified screen switch;

13. Automatic screen rotation from portrait to landscape mode; and

14. I've saved the best for last which is shake technology. You just shake the phone when you want to change songs, advance video, wall paper or photos.

As you can see, the HiPhone has fixed the problems with the iPhone and it's also added many features which make the iPhone technology better.

The addition of the dual sim, the upgradeable memory, the removable battery, additional speakers, video capability, and shake technology all add up to make this phone much better than the iPhone for a much cheaper price.

The HiPhone runs about $150, depending on where you get it. This is a steal, considering it has many more features than the HiPhone at a fraction of the price.

Visit the HiPhone Product Review Website by clicking here to see video demonstrations, close up photos, unique features, and comparison buyer information about the HiPhone. Rae Edwards is an internet technology research and writer.

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What Is A Tier 1 Bandwidth Backbone Provider?

One could say that the phrases "Tier I" and "backbone provider" are a bit redundant; others might say that they comfortably go together (like "ice cold Coke"). the functional contrast should be between a Tier I provider (e.g. AT&T, MCI, Sprint, Savvis/C&W, Global Crossing, Qwest, Level 3) and companies that are not Tier I providers -- who themselves have to buy bandwidth from Tier I providers.

Best example would be a local Internet provider offering T1 or DS3 service in a regional area: they might have their own facilities interconnecting different serving offices in a region, but they would have to send the traffic to a Tier I provider if the traffic goes outside their region. The Tier II provider makes money by buying a fixed amount of bandwidth, and selling it to many subscribers. The company must decide on what level of contention their customers must be exposed to. If you take a look at the W(wireless) ISP forum in BBR Reports you will see several threads from time to time discussing something like "how many customers will fit on a T1." Different providers will have different philosophies about how much to oversubscribe their network. What is true in the WISP world is also true in the cable internet world, and is also in the Tier II world. Think of it this way: if a local Tier II provider like "X-Com" (made up name) sells a T1 service to a new customer, will they add incrementally to their wholesale bandwidth purchase? No. But if Sprint sells a T1, their customer will get a dedicated port onto Sprint's backbone network at full speed with no contention.

Generally, there will be a price advantage of using a Tier II provider compared to a Tier I provider, as Tier II providers undercut the Tier I pricing and can afford to do so as they are oversubscribing their network facilities.

Tier II providers can be excellent source of inexpensive bandwidth if your network needs can absorb occasional delays or added latency (I'm not talking outages) -- if it's not mission critical or real time stuff, or if you're not yourself reselling the bandwidth.

Others might have other thoughts....

Bottom line is don't shop just on price. There's more to making a good business decision than dollars and cents. You need to make sure you get exactly what you need no matter what the cost.

Michael is the owner of FreedomFire Communications....including DS3-Bandwidth.com and Business-VoIP-Solution.com. Michael also authors Broadband Nation where you're always welcome to drop in and catch up on the latest BroadBand news, tips, insights, and ramblings for the masses.

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