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David Stokes: Optimizing Network Performance Through Segment Routing and Traffic Engineering

The past year has demonstrated that even the most basic activities can be conducted virtually.

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The author of this Expert Opinion is David Stakes, senior manage of portfolio marketing for Ribbon Communications

A fundamental driver of our global economy, communications services facilitate everything from productive collaboration through videoconferencing services, to the enjoyment of leisure activities like gaming and streaming. During the pandemic, our reliance on communications services quickly and dramatically grew, with many professionals shifting to remote work set-ups and nearly all students transitioning to online learning environments.

Over the course of the last year, it has become clear that with sufficient access to communications services, even the most basic activities — such as shopping for groceries, going to movies to catch a new release or having a meal with friends — can be conducted virtually.

However, with this reality comes significant challenges in terms of network capacity and bandwidth flexibility. With the growing number of people working and learning from home, there has been an unprecedented demand for bandwidth. Even after the massive shift to work and learn from home wanes and people return to offices and schools, there will still be an ever-increasing need for bandwidth.

If we simply look to Nielsen’s Law, which has been a trusted guide for the broadband industry in predicting internet bandwidth needs for several decades, we can safely predict that users’ connection speeds will continue to grow by 50% per year.

This increased bandwidth is key for social inclusion. As we continue to connect and engage with each other in new ways, the industry must invest heavily in high-bandwidth networks to enable the experiences society has come to enjoy – such as Skyping loved ones from across the country or streaming the latest online multiplayer game with friends down the road.

Streamlining the use of network resources

To realistically respond to ever-changing consumer demands in 2021 and beyond, communications service providers must incorporate a process called traffic engineering into their networks to guarantee service delivery meets the service level agreements required for each service. Network operators’ main aim is to facilitate efficient and reliable network operations, while also optimizing network resource utilization and traffic performance. In a nutshell, service providers want to run the network to respond to and meet changing bandwidth and performance needs as they arise.

Because each service has different types of requirements, traffic engineering can be used to ensure the traffic is routed across the network in the most appropriate way so that it meets the needs of the service. This is especially true when the network is dynamic: service providers may run the risk of overwhelming their networks with spikes in demand, while at the same time underutilizing network resources in other scenarios. These challenges only intensify with the new services we see now and their requirements for reserved bandwidth, deterministic latency, enhanced isolation, and ultra-reliable, low latency. These include VR/AR gaming, remote education, and telehealth.

To scalably prevent any network interruptions, reduce latency, and improve customer experiences over the long-term, proactively diverting traffic to underutilized network resources during congestion is key. For instance, consider the fact that videoconferencing services are more often than not used most during office hours, while gaming and streaming are typically used more in the evenings. To avoid overwhelming network resources, communications networks need to be able to instantly respond to increased demand for videoconferencing services during the day by tapping into the currently underutilized resources for gaming and streaming (and vice versa).

As the network becomes overloaded, it is able to respond to these congested conditions by dynamically differentiating and diverting traffic to underutilized resources for optimal allocation and performance. This allows customers to avoid experiencing interruptions if and when a sudden event occurs that congests network resources, such as a child beginning to stream a 4K video just as their parent kicks off a 100-person webinar on Zoom. Ultimately, this enables network programmability, making networks more flexible and agile.

The logistical and business benefits of segment routing traffic engineering

Being able to guarantee service performance is key to delivering new services and service types. Traffic engineering that uses segment routing can be leveraged to meet these guarantees. The source routing principle used in segment routing traffic engineering enables steering of the packet by changing the instructions on its header at the headend network device. With no change needed at the transit nodes, modification in the network can be made quickly and easily. Implementing segment routing doesn’t require new hardware, which makes the migration from traditional multiprotocol label switching relatively straightforward.

In addition to its logistical benefits, routing and traffic engineering provides increased mobility, which empowers communications service providers to deliver improved customer experiences and capitalize on potential new revenue streams. Imagine you are a delivery driver. If you’re new to the job, you’ll have no idea where you’re going, nor the most efficient route to take, and could spend ten hours on one route.

More experienced drivers, however, know that they must plan a route and load the packages in a certain way on the truck if they want to ensure that they can deliver packages to clock in at 9:00 am and clock out at 5:00 pm. Moving bandwidth works in a similar way – by planning your network, you can visualize it in full, adapt as needed, and direct traffic in the most efficient route whilst still meeting perform guarantees.

Perhaps multiple mobile customers are in transit while streaming a live basketball game, for example. The mobility benefits of these technologies would allow those customers to enjoy a seamless, uninterrupted experience as they stream the live feed of the game from their devices while walking home, waiting for a bus or riding in an Uber.

Improving customers’ communications experiences requires advanced traffic engineering 

Even as a sense of normalcy is restored post-pandemic, our reliance on communications services will remain steadfast. By introducing traffic engineering, communications service providers can gain the ability to implement a transport network that’s scalable, dynamic, flexible, and deterministic – in other words, a network that’s capable of supporting significant, long-term, and ever-changing demand.

Both service providers and consumers stand to benefit from proactively diverting traffic to underutilized network resources during congestion. In doing so, additional services can be delivered, latency can be reduced, and sudden network interruptions can be prevented.

Through the capabilities of advanced traffic engineering, communications service providers have an invaluable opportunity to dramatically improve the communications experiences of their customers, regardless of whether they’re working, learning, or playing.

David Stokes serves as senior manager of portfolio marketing for Ribbon Communications, a mobile network provider supplying communications security and software solutions to consumers. This piece is exclusive to Broadband Breakfast. 

Broadband Breakfast accepts commentary from informed observers of the broadband scene. Please send pieces to commentary@breakfast.media. The views expressed in Expert Opinion pieces do not necessarily reflect the views of Broadband Breakfast and Breakfast Media LLC.

Broadband Breakfast is a decade-old news organization based in Washington that is building a community of interest around broadband policy and internet technology, with a particular focus on better broadband infrastructure, the politics of privacy and the regulation of social media. Learn more about Broadband Breakfast.

Broadband Mapping & Data

Tom Reid: Accountability in Broadband Maps Necessary for BEAD to Achieve Mission

The sheer magnitude of the overstatements in the FCC’s map makes the challenge process untenable.

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The author of this Expert Opinion is Tom Reid, president of Reid Consulting Group.

With millions of American households stranded in the digital desert, we need to achieve accountability in broadband to make sure the Broadband Equity, Access and Deployment funding achieves its mission. The broadband gaps can be readily identified despite the air of mystery surrounding the topic.

Broadband improvements have been constrained for decades by inaccurate maps, yet the Federal Communications Commission continues to accept dramatically exaggerated availability and capacity claims from internet service providers. The cumbersome challenge process requires consumers and units of government to prove a negative — a logical fallacy.

The Reid Consulting Group and other parties, including Microsoft, have developed robust algorithms to reliably identify actual broadband availability. RCG utilizes Ookla Speedtest Intelligence data due to the large quantity of consumer-initiated tests. In Ohio, as an example, we draw on more than 16 million speed tests reflecting the lived experience from millions of households. We combine the speed test findings with FCC and Census data to deliver irrefutable identification of unserved and underserved locations.

Such methodologies offer State Broadband Leaders the opportunity to reverse the burden of proof in the BEAD program, requiring that ISPs submit concrete evidence supporting their availability and speed claims. As an example, in Ohio, RCG’s maps were accepted as proof of unserved status for the 2022 state grant program. BroadbandOhio then required ISPs to submit substantial proof in their challenge process. In other words, the ISP’s were tasked with proving a positive instead of expecting citizens to prove a negative.

ISPs and the FCC denounce crowdsourced data unless conducted under unusually restrictive conditions. The ISPs have successfully promoted unsubstantiated myths regarding the value of consumer-initiated speed tests.

Myth: Bad tests are because of poor Wi-Fi.
Reality: RCG eliminates speed tests with weak Wi-Fi and includes GPS enabled wired devices. Even first-generation Wi-Fi would saturate a 25 Megabits per second download and 3 Mbps upload connection.

Myth: Residents only subscribe to low-speed packages.
Reality: According to the National Rural Electric Cooperative Association, in areas where rural electric cooperatives offer broadband, 25 to 33 percent of rural subscribers opt for the top speed tier offered. We can clearly see this trend in areas where fiber has been deployed in recent years, as described later in this article.

Myth: People only test when there is a problem.
Reality: Network problems prompt tests, as do resolutions of problems.  RCG recommends focusing on the maximum speed test results to eliminate this “unhappy customer effect.”

Finding the truth: Broadband and the lived experience

In Ohio, RCG analyzed more than 14 million consumer-initiated speed tests over a three-year period. The data reveals a clear pattern of carrier overstatement. The stark visual contrast between the two maps is hard to ignore — and while this study is focused on Ohio, the issue remains nationwide in scope. The sheer magnitude of the overstatements makes the FCC challenge process untenable.

Figure 1: Ohio Broadband Reality vs. FCC ISP stated coverage map.

RCG utilized the “maximum speeds ever seen” at a location for generating maps and coverage figures, but we also examined the results from the average of speed test. Switching between average and maximum speeds does not change the overall picture of broadband availability. As an example, Figure 2 focuses on an area around Bolivar, Missouri. Looking at the maximum speed turns Bolivar itself a deeper green, meaning “better served,” but the rural areas around Bolivar remain predominantly red, meaning “unserved.”  The preponderance of evidence clearly demonstrates that much of the rural area around Bolivar remains unserved, even at maximum speeds.

Figure 2: Map visualization illustrating the difference between viewing average speeds in the Bolivar, Missouri area and maximum speeds documented.

When rating broadband availability in the Bolivar area at the Census block level and overlaying with ISP coverage claims at the H3 R8 level, you can see that many of the unserved and underserved areas have been reported as served to the FCC by ISPs (Figure 3).

Figure 3: Carrier overstatement small scale in Bolivar, Missouri. RCG speed map with FCC H3 R8 hexagon overlay.

Zooming out to examine the entirety of Missouri (Figure 4), the pattern of ISP overstatement becomes quite clear. According to the FCC maps, most of the state is served, whereas the analysis conducted by RCG shows that significant areas remain in need of broadband investment. As with Ohio, the scope of the overstatement in Missouri presents an unreasonable burden on the public to challenge.

Figure 4: Missouri reality vs. ISP Reports, March 2023.

Showing Progress: Change of State Analysis

Change-of-state analysis taps progressive releases of Ookla records to identify areas where broadband speeds have set new highs. This approach works not only for grant funded projects but also private investments. The area surrounding Byesville, Ohio (Figure 5) reveals a significant uptick in test volume, test locations, and speeds from 2020 to 2022. Side-by-side comparison shows a large number of “green” (served) speed test locations where there used to be only “red” (unserved) and “orange” (underserved) results. This change is a direct result of a Charter Communications Rural Digital Opportunity Fund deployment.

Figure 5: The unserved area around Byesville, Ohio before and after broadband deployment.

State Broadband Leaders can use these capabilities to document progress and identify lagging projects. Any service area will always exhibit a mix of speed test results.  Even in an area like Byesville where fiber-to-the-home has been deployed, not all the location “dots” will turn green. However, the preponderance of evidence clearly shows that a funded ISP — in this case, Charter — has made good on its commitment to expanded broadband access. ISPs can help by conducting speed tests at the time of installation from the customer’s premises and by increasing minimum packages to 100/20 Mbps or higher.

There is no mystery to solve — we know how to identify areas lacking broadband services. For many rural Americans, even their telephone services have become unreliable, still dependent on the now-decrepit copper cables built in the 1940s through 1960s. We all depend on a healthy rural economy for our food, water and energy. Let’s make the commitment to build the infrastructure needed to bring these households into the internet age — starting by bringing reality and accountability to the availability maps.

Tom Reid is the president of Reid Consulting Group, a firm specializing in broadband. They work with clients to generate insights, create actionable plans, and identify funding sources to connect unserved and underserved areas. RCG’s engagements in eight states have delivered 6,000 miles of fiber construction with a total project value of $1.6 billion and has secured over $330 million in grant funds on behalf of clients. This piece is exclusive to Broadband Breakfast.

Broadband Breakfast accepts commentary from informed observers of the broadband scene. Please send pieces to commentary@breakfast.media. The views expressed in Expert Opinion pieces do not necessarily reflect the views of Broadband Breakfast and Breakfast Media LLC.

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Expert Opinion

Johnny Kampis: Broadband Industry Hopeful to Get Waivers from Biden Administration Protectionist Policies

The Buy America mandate could seriously hamper the Broadband Equity, Access and Deployment program.

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The author of this Expert Opinion is Johnny Kampis, director of telecom policy for the Taxpayers Protection Alliance.

In a presidential administration rife with protectionist policies, the broadband internet industry is optimistic it will receive waivers from the Buy America” mandate that threatens to derail plans to close the digital divide.

The National Telecommunications and Information Administration is likely to announce state funding allocations for the $42.5 billion Broadband Equity, Access and Deployment program by the end of June. That is the biggest piece of the taxpayer-funded pie allocated by Congress to extend broadband infrastructure across the U.S. over the next several years.

But, as the Taxpayers Protection Alliance has reported, broadband industry leaders say the Buy America mandate could seriously hamper the effort. As part of the mandate, the Biden administration has said that at least 55 percent of the component parts of a product used in federal construction projects must be sourced domestically. That rule applies to any infrastructure project, but broadband has taken center stage recently with the BEAD funding imminent.

Because fiber-optic cables primarily used in broadband infrastructure projects include materials such as aluminum, copper, glass, plastic and steel that are primarily manufactured in other countries, under the current rules they would be forbidden. And many other important cogs in the broadband machine, such as routers and switches, are mostly made overseas. Even the left-leaning Brookings Institution noted the policy could put broadband deployments as risk.”

Fortunately, the Biden administration is softening on its Buy America policies — at least in the broadband industry. NTIA chose earlier this month to exempt several categories of equipment such as broadband routing equipment, transceivers and antennas from the domestic manufacturing requirements in the Enabling Middle Mile Infrastructure Program. The agency said that although there are public and private efforts underway to increase manufacturing capacity… industry will not be able to address shortages of the manufactured products and construction materials required for middle mile network deployment within the timeframes required.”

Broadband Breakfast pointed out in a recent article that it will take several years to ramp up production of semiconductors in the U.S. and the BEAD program has set a five-year timeline for project completion.

The estimates are that it would take at least, at a minimum, three to five years to bring a semiconductor chip plant to the U.S.,” said Pam Arluk, vice president of NCTA – The Internet & Television Association. And even though the BEAD program is going to be over several years, thats still just not enough time.”

The inherent difficulties in meeting the Buy America mandate, and the precedent now set with the middle mile program, provide optimism that waivers will likely be offered with BEAD. But that is just one of many infrastructure programs now being funded by taxpayers through federal recovery programs.

As President Joe Biden said in his State of the Union Address in February, American-made lumber, glass, drywall, fiber optic cables…on my watch, American roads, American bridges, and American highways will be made with American products.”

Washington Post columnist Fareed Zakaria pointed out that what he calls the Biden Doctrine” violates the spirit of the World Trade Organization and its framework of open trade. And another Post columnist, former Clinton administration Treasury Secretary Lawrence Summers, noted that protectionist policies tend to hurt more people than they help — giving as an example steel tariffs that aided 60,000 steel workers, but threatened the jobs of 6 million other workers in industries paying inflated prices for steel.

Strides in broadband waivers are a good sign, but the Biden administration must do more to curtail its protectionist policies as industries use economic recovery funds to build infrastructure in the coming years.

Johnny Kampis is director of telecom policy for the Taxpayers Protection Alliance. This piece is exclusive to Broadband Breakfast.

Broadband Breakfast accepts commentary from informed observers of the broadband scene. Please send pieces to commentary@breakfast.media. The views expressed in Expert Opinion pieces do not necessarily reflect the views of Broadband Breakfast and Breakfast Media LLC.

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Angie Kronenberg: The FCC Must Act Now to Save the USF

While the USF remains vital in an ever-increasing connected world, it is in serious jeopardy of surviving.

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The author of this Expert Opinion is INCOMPAS President Angie Kronenberg.

Last week, the Senate Subcommittee on Communications, Media and Broadband held a hearing titled “The State of Universal Service.” The Universal Service Fund is our nation’s critical connectivity program that helps ensure that voice and broadband services are available and affordable throughout the country.

Since its creation by Congress in the 1996 Telecom Act, the USF has become a program that millions of families, community anchor institutions and small businesses rely on to get connected. It has been especially valuable for families and businesses that rely on it for work, school and telehealth at home.

The USF spends about $8.5 billion annually to help fund affordable connectivity in rural areas, low-income households, schools, libraries and rural hospitals. Today, the Federal Communications Commission is working to make high-speed broadband as ubiquitous as telephone service, and broadband is the essential communications technology the USF now supports.

While the USF remains vital in an ever-increasing connected world, it is in serious jeopardy of surviving. To fund the programs, telecom providers are required to pay a certain percentage of their interstate and international telecom revenues, known as the “contribution factor.” Typically, telecom providers collect these USF fees from their customers on their monthly bills.

However, the telecom revenues that fund the USF have declined over 60 percent in the last two decades. As a result, the contribution factor has skyrocketed from about 7 percent in 2001 to a historic high of about 30 percent today, as a higher portion of telecom revenues is needed to sustain the fund. That means certain consumers and businesses are now paying an additional 30 percent on top of their phone bills in order to fund the USF.

Telecom revenues continue to decline so rapidly because customers today rely more on broadband services and less on landline and mobile phone services, but broadband revenues do not pay into the USF. While the FCC has modernized each USF program to help support broadband service, it has not modernized its funding mechanism to require broadband services to pay into the Fund even though historically the agency has required supported services to be included in the contribution system.

Without intervention, the contribution factor is predicted to rise to 40 percent by 2025. This is unsustainable and puts the stability of the entire USF at risk. In fact, the contribution factor has become so high that it has led some groups to challenge the USF in federal court as unconstitutional, which also threatens the sustainability of the USF.

Reforming the USF funding mechanism is urgently needed and long overdue

Over 340 diverse stakeholders have come together as the USForward Coalition calling on the FCC to move forward with USF reform by expanding the contribution base to include broadband revenues. This solution is based on the recommendation in the USForward Report (that INCOMPAS helped commission), which was written by USF expert and former FCC official Carol Mattey.

The USForward Report explains that the most logical way to reform the contribution system and sustain the USF is to include broadband revenues in its funding assessment. Under this approach, the contribution factor is estimated to fall to less than 4 percent. It also means that the services that get USF support are paying into it, rather than solely relying on telecom customers, including those that have not made the switch to broadband, such as older Americans.

In fact, some members of Congress understand the urgency of reform and also want the FCC to act. The Reforming Broadband Connectivity Act, for example, is a bipartisan, bicameral bill that would require the FCC to reform the contribution system within one year.

Some question whether large tech companies should be assessed to contribute to the USF, and the short answer is “No.” Tech companies invest $120 billion each year in global internet infrastructure, and unlike broadband providers, these companies do not request or receive USF funding for these investments.

The FCC also lacks the authority to regulate tech companies and doing so would require Congress to act. This would further delay reform and expand the FCC’s regulatory authority over all online content and services — an overreach that many question as too broad since nearly every business today has an online presence and uses the internet to conduct business. Moreover, proposals to target certain tech companies risk skewing the online marketplace and competitive markets.

Some also question whether we still need the USF at all, and the short answer is “Yes.” While Congress allocated tens of billions for broadband, most of this investment is targeted for deployment, yet a significant portion of the USF programs focus on affordability. We not only have to make sure we build out our broadband networks, but also that communities can then afford to subscribe to these services.

The FCC should not wait to reform the USF. The USForward Report sets out a real plan that the FCC can and should implement. Congress should encourage the FCC to act now and save the nation’s critical connectivity program.

Angie Kronenberg is the president of INCOMPAS, where she manages the policy team and its work before federal, state and local governments, as well as leading the association’s efforts on membership and business development. This piece is exclusive to Broadband Breakfast.

Broadband Breakfast accepts commentary from informed observers of the broadband scene. Please send pieces to commentary@breakfast.media. The views expressed in Expert Opinion pieces do not necessarily reflect the views of Broadband Breakfast and Breakfast Media LLC.

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