Tuesday, April 20, 2021

10 Gigabit Ethernet WAN

By: John Shepler

As business becomes more online and companies relocate IT operations to the cloud, the need for WAN bandwidth has steadily increased. Today it is not uncommon for even smaller operations to need 100 Mbps to 1 Gbps of reliable dedicated Internet and inter-office network bandwidth. Medium and large companies, especially those with highly technical products and services or medical imaging, can easily keep Gigabit connections busy. It may well be time to move up to 10 Gigabit Ethernet WAN.

10 Gbps bandwidth for high throughput.Types of High Speed WAN Networks
Very high bandwidth connectivity tends to break down into two categories: Dedicated Internet Access and dedicated private or virtually private lines.

Dedicated Internet Access connects your business location to the Internet through a highly reliable, usually fiber optic, broadband connection. It is called “dedicated” to distinguish it from shared bandwidth services such as cable, DSL, satellite, and cellular wireless services. Dedicated means that all of capacity of the line is dedicated to your needs. There is no competition from other users over this connection.

The Internet, certainly, is a shared resource and your packets are competing with everyone else’s online. There is no way to give yourself priority or to designate certain services such as latency sensitive VoIP phone calls and video conferences as more important than run-of-the-mill file transfers. Usually, though, employing a dedicated access line greatly improves your Internet experience because most of the congestion tends to be in the “last mile” connections to the end users.

Even so, you may want to bypass the Internet for business critical applications such as call centers, core cloud services and the like. You need a direct connection from your location to your service provider, who may or may not be located in the cloud. You may also wish to interconnect your own business locations via a private network of dedicated lines.

Content Delivery Networks
Another type of “private Internet” is the content delivery network. Studios and other video content providers have found that the Internet may not always be able to handle the number of simultaneous high definition streams that users demand. A way to improve performance for the end user short of a direct connection is to deliver the content to the Internet at a point closest to the customer. Entire private networks with multiple geographically diverse server locations are interconnected and then terminated at “Points of Presence” near the users.

Content Delivery Networks need to be very high speed to handle the amount of streaming traffic at a given time. 10 Gbps bandwidth could easily be a minimum, with needs expanding to 100 Gbps connections and more possible.

Content Delivery Networks aren’t just for high volume video steaming. They are also useful to make websites more responsive and easier to handle surges of requests by distributing the content of the website to servers nearer the users. By spreading the load geographically, response time is better and no one server becomes overloaded.

MPLS Networks
A Multi-Protocol Label Switching network is a privately run multi-user network that also helps companies get their most critical operations off the Internet. The advantage of a MPLS network is that it has regional, national or even international points of presence. You only have to supply the line from a particular business location to the nearest network POP. The network operator takes care of the long haul connections between POPs.

As you might guess, the big advantage of MPLS networks versus running your own private network is cost. Unlike the Internet, MPLS performance is guaranteed. The label switching protocol that is employed on the network for traffic control is not hackable using standard Internet Protocol tools and access is limited to paying customers, not the general public. This provides an extra layer of security for your data.

Where Do You Find 10 Gbps Connections?
Until recently, 10 Gbps bandwidth was considered high enough that it was only needed for carrier core networks and the largest business users. The original telco fiber optic standard was OC-192 at 10 Ghz, with 40 Gbps available as OC-768.

A newer standard is Carrier Ethernet that is easily scalable over fiber from 10 Mbps to 100 Gbps, with 10 Gbps readily available today. In some locations, 100 Gbps Ethernet WAN connections are available for the most demanding applications. It’s likely that this service level will be common in years to come with the next advancements being in the Terabit per second range.

If your location or one nearby is lit for fiber optic service, you can likely get 10 Gigabit Ethernet fairly quickly. In some metro areas, 10 Gbps service is also available using point to point line of sight microwave. This makes the service even faster to install and potentially avoids high construction costs of brining in fiber if it isn’t installed already.

Do you have a need for very high bandwidth connections that are also highly reliable and low in latency and packet loss? If so, see what 10 Gigabit Ethernet WAN services are available for your business locations.

Click to check pricing and features or get support from a Telarus product specialist.



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Tuesday, March 02, 2021

Dedicated Leased Lines for Business

By: John Shepler

Leased lines have been around since the telegraph was invented. Today, they’re a bit faster. Typical leased lines for business range from 1.5 Mbps on the low end to 10 Gbps and even 100 Gbps on the high end. Let’s look at what leased lines are and how they differ from your typical broadband connection.

Find Dedicated Leased LinesLeased From Whom?
You know how it works when you lease a property. You sign a lease document and typically pay monthly for the duration of the lease. For that, you have exclusive use of the office or other building space. It’s similar with leased lines.

The simplest leased line is a pair of twisted copper wires that connect to a demarcation point in your facility to your service provider or through the local incumbent telephone company. For historical reasons, the ILECs, as they are called, own all the copper telco lines. After industry deregulation, other competitive service providers were able to lease these line and then sublease them to you.

The telco may provide the entire line service or just the “last mile” connection to your place. In any case, that’s invisible to you. You’ll get one bill from your service provider that covers the entire line service regardless of how far it stretches.


Dedicated Leased Lines
Leased lines can provide telephone services, Internet access or Wide Area Network (WAN) connections. A single copper pair gives you landline phone service. A multi-pair bundle gives you multiple phone lines. Once you order more than a few lines, it is more cost effective to install a single digital line that supports up to 23 simultaneous calls. That service is called ISDN PRI.

Regardless of the number of lines you need, they are all what is called dedicated lines. That means they are for your use exclusively. Many decades ago, there weren’t enough phone lines to go around and they were shared in an arrangement called a “party line.” The real party often involved snooping on your neighbor’s phone conversations.

Party lines are pretty much relegated to history, although many Internet services have a similar connectivity. You and others in your area share the broadband bandwidth. Typically, you can’t see what your neighbor is doing, but you can feel the effects of the line speeding up and slowing down with the varying traffic. These are shared services versus dedicated.

Dedicated Leased Data Lines
More business activity is now done with computers than telephones. Every business needs some type of digital connection for credit card transactions, Web sites, online order processing, purchasing and inventory, accounting, customer service and so on. You’ll need leased lines for interconnecting your various business locations and for connecting to the Internet

The T1 leased line was popular for decades. It was the first high speed dedicated digital connection available for business and runs at a blazing 1.5 Mbps. That’s pretty slow by today's standards, but it still useful for smaller operations. An advantage of T1 is that it runs on ordinary phone lines and can be installed virtually everywhere.

The next step up traditionally has been to the DS3 or T3 line at 45 Mbps. Above that is SONET fiber optic service at 155 Mbps and above.

These legacy dedicated lines are still in service, but are rapidly being replaced by Carrier Ethernet that better matches the needs of today’s networks. Ethernet over Copper handles the low end from about 1 to 20 Mbps. Ethernet over Fiber is far more capable and is available from 10 Mbps to 10 Gbps in most locations and 100 Gbps in some areas.

Dedicated Internet Connections
The Internet itself is a shared resource, which is its great advantage. You can connect with just about everyone, everywhere. It’s your connection to the Internet where you have a choice. You can use a dedicated Internet connection or a shared bandwidth connection.

How to choose? The shared bandwidth connections are what you find in cable broadband, cellular broadband, and satellite broadband services. Consumers and many small businesses opt for this arrangement as it offers the lowest costs.

In addition to sharing the bandwidth on a providers circuit, which causes variations in performance, shared services are also typically asymmetrical. That means the download speed is many times the upload speed. That’s good for watching video streaming or reading web pages, but not so good for sharing or backing up large files, or some business processes in the cloud.

Dedicated lines are usually symmetrical with upload and download speeds identical. They also have rock solid bandwidth that is strictly for your use. If the line is getting congested, then you need to increase your bandwidth because it's all your traffic. A further advantage of many dedicated lines is that they come with a Service Level Agreement that guarantees a level of availability and time to repair, should anything go wrong.

Do you need new WAN bandwidth services or help deciding the best options for your business? Check out the myriad of dedicated and shared bandwidth services available for your particular location.

Click to check pricing and features or get support from a Telarus product specialist.



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Tuesday, February 09, 2021

Bandwidth for Cloud and On-Premises

By: John Shepler

Whether you choose to have your data center on-premises or in the cloud, you’ll need high performance WAN bandwidth for connectivity. Let’s look at the various options.

Find the bandwidth connection you need at a great price.Everything’s On Premises
One big advantage of maintaining your own in-house servers and other data center equipment is that you control the premises network. Your local area network (LAN) likely runs at least 100 to 1000 Mbps. The connections in the data center may be much higher for the short runs needed to interconnect storage, processing security appliances and the rest.

It’s important to note that this is a dedicated network for your exclusive use. If congestion is a problem, you need to upgrade the weak links because it is your operation that is causing the problem. There are no outsiders to cause interference. We’ll come back to that later.

Since all of your company connections are local, why do you need a a wide area network (WAN) at all? For one thing, you’ll have remote employees or employees that occasionally connect from home. For another, your operation may not be contained in one closed campus. You may have multiple offices, retail sites, franchises, warehouses or factories. Even if they are just across town, you have to lease network bandwidth to connect.

Ideally, you’d like these operations to look like they are also on your local network. You can do that with WAN network connections that look like your LAN connections. Metro Ethernet and long haul Ethernet connections are available from 10 Mbps to 10 Gbps and look just like very long LAN cables. Transparent LAN service (TLS) is a managed carrier service that links locations no matter how far apart they as switched nodes.

Connecting to the Outside World
How is it that you connect to your customers and suppliers? These days it is probably via the Internet. You’ll want a high speed dedicated Internet connection to reach out to customers and suppliers and access Internet resources. You may well have a security appliance in the line between the Internet link and your network to keep malicious actors out of your company.

Remote employees will also use the Internet but may connect using a VPN or Virtual Private Network. This adds encryption to your Internet sessions so that they can’t be accessed by anyone not authorized.

Another consideration is the connection that customers use to access your E-commerce servers. Sometimes that bandwidth for this activity is much larger than what you are actually using in-house. You’ll want a fiber optic dedicated Internet access connection to your customer facing servers.

Facilities in the Cloud
The joke going around is that there really is no cloud, it’s just somebody else’s computer. Strictly speaking, that’s true. The advantage of the cloud is that one massive data center can host and maintain thousands of servers with backup power and massive connectivity at reasonable prices. Some companies may want to keep their in-house processes under local control and have their e-commerce servers in the cloud where they can have those massive scalable resources.

The cloud provider will take care of Internet bandwidth out to your customers. You’ll also need an Internet connection with enough bandwidth to efficiently upload and download files from your cloud servers. If you choose to have business process software running on cloud servers, you connectivity will be crucial to the in-house user experience. Latency can be a big issue in responsiveness. Variations in latency due to congestion or line issues can kill productivity and become a major morale problem.

For the best performance, you’ll want a high speed dedicated connection directly to your cloud service provider, avoiding the Internet completely. If that is not available or beyond the budget, a dedicated Internet connection with enough capacity for everyone is a reasonable substitute.

Why Dedicated Bandwidth?
As you may have surmised, there are two types of line services: Dedicated and shared. Dedicated lines are assigned to your traffic only. Whatever you don’t use at the moment sits idle, but you never have to contend with someone else hogging the bandwidth. Point to point E-Line, E-Line and E-Tree connections are all dedicated, as are T1 lines and DS3 bandwidth.

MPLS networks are actually a shared resource, but are a private network carefully managed to ensure that the committed resources in the contract are available at all times. They behave like dedicated resources, but with a cost savings if you need to link many sites.

The public Internet is inherently a shared resource. The core network has reasonably high performance, although equipment failures can occasionally grind performance to a halt. The Internet is designed to work around faults, but may not be able to maintain full speed if some nodes are overloaded.

The real issues with the Internet revolve around the last mile connection performance and no ability to set priority for highly sensitive packets like VoIP telephone calls and video conferences. Shared Internet connections include DSL, cable and cellular broadband. They work well for many uses and offer bargain rates, but you have to accept variations in performance that can range from unnoticeable to highly annoying.

It also should be noted that shared Internet connections tend to offer much higher download than upload speeds, often in the range of 10 to 1. That’s because most users, especially those watching video, are receiving far more data from the Internet than they are sending. Dedicated connections usually offer the same speeds on download and upload, which might be important for business processes, file transfers, telephone, video conferencing and data backups.

Are you in need of a bandwidth upgrade or new service? Get a suite of quotes from competitive providers to see what’s available for your location and how prices compare.

Click to check pricing and features or get support from a Telarus product specialist.



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Thursday, January 07, 2021

Ethernet WAN to Complement Your LAN

By: John Shepler

Traffic on your company’s Local Area Network (LAN) zips along at 1 Gbps or more. In most cases that’s so fast it seems like the network is transparent. Yet, access a resource outside your building and things just seem to creep along. Wouldn’t it be nice to just stretch that LAN across town or to one of your remote locations? Well, maybe you can.

Find Ethernet WAN services for your business location. Yes, The WAN is Ethernet
Networks can be divided into two categories: The ones you own and the one’s you lease. You typically install and administrate your company network, called the LAN. When you leave the premises, you connect to another network that operates as a utility. That's the WAN or Wide Area Network. Originally, this WAN was owned and operated by the telephone companies and implemented their proprietary standards. That includes your phone voice lines, ISDN dial-up, T1, DS3, and SONET fiber optic. Connecting to any of these standards requires specialized equipment to do the protocol conversion to and from the Ethernet that runs on the LAN.

These days, most outside lines connect directly to Ethernet without any protocol conversions. The suppliers can be telephone companies or competitive carriers who run their own fiber optic networks. Interoperability is made easy by Carrier Ethernet Standards established the MEF (Metro Ethernet Forum) industry consortium.

Ethernet WAN Services
There are three services typically offered by Ethernet service providers that you’ll want to know about.

E-Line or Ethernet Virtual Private Line is a point to point service that connects two locations as if there was a really, really long Ethernet cable in-between.

E-LAN or Ethernet Virtual Private LAN is for multiple locations that want to communicate as if they are on a private bridged Ethernet network.

E-Tree or Ethernet Virtual Private Tree is also a multipoint service, but used more for broadcasting, streaming or content distribution. It is a one-to-many service with a single root and multiple leaves.

Getting Ethernet WAN Service
Within a metropolitan area, the service is called Ethernet MAN or Metropolitan Area Network. Over longer distances that leave the area, Ethernet WAN or Wide Area Network is the term used.

You’ll contract with a service provider or carrier that has points of presence in the locations you want to connect. You may have several to choose from.

The equipment installed at your location consists of terminal equipment with an Ethernet port that supports the network speed you desire. Unlike older systems that require equipment changes for every change in service level, you can order Ethernet service at many different speeds up to the limit of the installed port. This has the advantage of letting you pay for the service level you need now and then upgrade easily as you need more capacity. Often that’s as easy as making a change via your online service portal or with a simple phone call.

Ethernet to the Internet
The Internet is the ultimate Wide Area Network, connecting just about everybody, everywhere. You can order an Ethernet Dedicated Internet Access to connect your company to the Internet at whatever bandwidth you desire. The advantage of a dedicated connection is that the full bandwidth of the line is at your disposal and not affected by the carrier’s other customers. These lines are also typically symmetrical, meaning that upload and download speeds are identical.

Why not just use the Internet to connect your far flung locations as well as connecting to customers? Many companies do. it’s likely your lowest cost option. What you give up is the ability to establish Class of Service so that sensitive applications like VoIP phone calls and video conferences have priority over less critical applications such as file transfers and backups. Internet performance is also somewhat unpredictable because of unexpected congestion, indeterminate packet routing, jitter, latency and packet loss.

For companies with multiple locations, a hybrid arrangement may work best. Use dedicated Ethernet services to interconnect business locations and the Internet to communicate with supplier and customers.

Does Ethernet WAN sound right for your business? Get a suite of competitive quotes for Ethernet WAN or MAN services now with a single inquiry.

Click to check pricing and features or get support from a Telarus product specialist.



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Wednesday, December 16, 2020

100, 1000, 10000 Mbps Internet Speed

By: John Shepler

Business Internet speed requirements have increased dramatically as computer and software technology has advanced. It’s also true that our long distance WANs (Wide Area Networks) have become more like umbilical cords than transmission pipes. Today, 100 Mbps, 1000 Mbps and even 10000 Mbps Internet connections are common and necessary. Fortunately, pricing has plunged as speed has jumped, making these bandwidth levels affordable.

Find 100, 1000, 10000 Mbps Broadband100 Mbps Fast Ethernet
100 Mbps is the new benchmark bandwidth, replacing the traditional DS3 bandwidth at 45 Mbps. DS3 is part of the telco TDM standard as an upgrade to slower T1 lines. At one time, DS3 could be supplied on a T3 coaxial copper line or microwave signal, but is now demultiplexed or “dropped off" by a SONET OC3 legacy fiber optic service.

The lower cost option for 100 Mbps bandwidth is cable broadband running DOCSIS on small diameter coaxial lines. These are the familiar “cables” installed for cable TV and broadband. In most cases, 100 Mbps is the download speed. The upload speed may be 10 Mbps or less. The service is also multiplexed or shared among subscribers, so actual bandwidth may vary somewhat. Even so, 100 Mbps cable broadband works very well for many work from home situations, home based businesses, small offices and small retail businesses.

For larger or technically more demanding applications, 100 Mbps Ethernet over Fiber gives you 100 Mbps upload and download speeds or symmetrical service. This service is also dedicated or private. You and you alone have access to all the bandwidth and it is consistent at 100 Mbps. While this service requires a fiber drop rather than cable, pricing is quite reasonable and readily available for most business locations.

1000 Mbps Gigabit Ethernet
Gigabit Ethernet or GigE provides 10x the bandwidth of Fast Ethernet. Like the 100 Mbps service, you can now get this level of service through a cable broadband provider in many areas. The step up in speed makes it easier for many users to connect in your office. It also facilitates more demanding applications like heavy video streaming or conferencing.

Gigabit Ethernet over Fiber is a premium service that is getting more affordable every day. Many medium and larger businesses opt for this service as it is highly reliable, with low latency, jitter and packet loss combined with high enough bandwidth to be transparent even with many concurrent users. The symmetrical bandwidth enhances the performance of cloud based applications and remote backup where upload speed is important.

10,000 Mbps Gigabit 10 Gig Ethernet
10 Gigabit Ethernet or 10GigE is the fastest bandwidth service available to most business users. At this level, you can connect large offices, factories, warehouses and retail stores to the Internet or as point to point private lines. Bandwidth is symmetrical and private, as you would expect. While DOCSIS cable is theoretical capable of supporting 10 gigabits, this is currently a fiber optic service almost exclusively.

When you get to these bandwidth levels, some other options become available. You can opt for the standard fiber optic connection or lease an entire wavelength or lambda on the fiber. This increases your privacy and, thus, security level. For even greater control, you can lease an entire dark fiber and light it yourself or have the carrier do that.

Advancing Bandwidth Levels
Like processing speed and number of cores on a chip, metropolitan and wide area network bandwidths are continuously increasing. In select areas, 100 Gigabit Ethernet over Fiber service is now available for business. With Dense Wavelength Division Multiplexing, you can easily achieve that by lighting dark fiber and, perhaps, even move up to Terabit per second bandwidth levels if the budget allows.

Are you looking for reasonable high business bandwidth levels at your current location or needing to connect a new facility? Know that high bandwidth broadband and private line services are more available and affordable than ever before. Get quotes from multiple providers and decide the best option for you.

Click to check pricing and features or get support from a Telarus product specialist.



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