8/2/2023 0 Comments Backbone network![]() ![]() In the U.S., most backbone switches handle traffic at 100 Gbps or 400 Gbps, although upgrades to 800 Gbps are on the horizon. It's very stable, with 30 percent to 40 percent incremental capacity being added every year," says Shin Umeda, vice president of Dell'Oro Group. "The core routing market has been $3 billion to $3.5 billion per year for the last five to six years. Backbone switches growīecause network intelligence and CDNs are relieving significant pressure from tier-one internet backbone switches, change at that level is gradual but steady. Laliberte says implementing SASE capabilities in a CDN is logical in that it brings the security tasks closer to the user so the impact on network performance is minimized. In addition to taking on increased video traffic, CDN providers such as Akamai are augmenting their services with security capabilities that implement Secure Access Service Edge (SASE) principles, a blueprint developed by Gartner. He also predicts that streamed video traffic over CDNs will only increase, as consumers become accustomed to accessing live events from their living room TVs or smartphones. In addition to caching video close to where it is being consumed, CDNs also handle e-commerce and gaming traffic, both of which saw elevated levels during the pandemic, Abdo notes. The research firm forecasts the market will increase to $18.9 billion in 2025. Total revenue for the worldwide CDN market was projected to reach $10.3 billion in 2021, representing an increase of 20 percent from 2020, according to IDC. "CDNs provided a very important safety valve that enabled us to get through the pandemic," says Ghassan Abdo, research vice president for telecommunications at IDC. Netflix built its own CDN well before the pandemic. By caching and routing video traffic close to local demand, CDNs such as Akamai, Cloudflare, and Amazon Web Services' CloudFront keep video traffic from ever reaching, and clogging, internet backbone switches. Much network intelligence is to be found in CDNs. "Advanced streamers automatically sense the bandwidth and send the right version of the video down," he says. If not, the content is throttled back to non-HD. For example, he says, the network can detect a video consumer's bandwidth and determine whether it can handle HD video. Please read: Best of Enterprise.nxt: All about 5G networksĪs video traffic across the internet increases, intelligence built into networks is managing traffic to match the available bandwidth, according to Fuhrer. Over time, we'll see more consumption migrating to IP versus cable," he says. "The weather is cold and people are streaming more now. Streaming video accounted for 33 percent of all video traffic during the week of Christmas 2021, the highest share ever, according to Fuhrer. Now, we're near 200 billion minutes streamed per week," says Brian Fuhrer, senior vice president of product strategy at Nielsen. "Looking back at 2019, there were 73 billion minutes streamed every week. DVDs and, to a lesser extent, cable are dying as alternatives, so a huge percentage of entertainment video, as well as gaming, has moved to the internet proper. People stopped going to theaters to see movies. It's not just all those Zoom calls that are eating up bandwidth. Content delivery networks (CDNs), backbone switch upgrades, hyperscaler networks, and fiber buildouts are each playing an important role. ![]() One point on which no one disagrees is that streaming video traffic, both on demand and live, is increasing relentlessly and as it does, the structural elements of the internet are evolving to meet the new demands. That put a lot of pressure on the backbone," says Ajeet Das, research director for telecom infrastructure at IDC. COVID-19 caused people to work from home and connect through the internet. ![]() Another analyst, meanwhile, says surviving the unprecedented shifts in traffic was a much closer call. It enabled people to work from home," says Bob Laliberte, principal analyst at Enterprise Strategy Group. "The internet was one of the heroes of the pandemic. But whether the global network of networks passed the test with flying colors depends on whom you ask. The flexibility and resiliency that's built into the internet held up. It could have been a recipe for chaos, but it wasn't. All of a sudden, remote access multiplied and video traffic spiked. The COVID outbreak of early 2020 sprang a surprise on all of us, but especially on the internet. ![]()
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