As we have already discussed throughout this course – . Let’s visualize this with the example shown in figure 1. If we have six WAN edge routers connected to a single WAN transport as shown on the left, the default overlay outcome with no policies applied results in 15 IPsec tunnels as shown on the right side. You can easily calculate how many tunnels will be established with the full mesh formula n*(n-1)/2. In case the company has 100 branches, there will be 4950 overlay tunnels.In a real-world example, it is more likely that each vEdge device is connected with at least two underlay transports typically one public internet circuit and one private MPLS one. In thisspoken io case, there will be twice as many overlay spoken io connections as shown in figure 2. In this scenario, both WAN transports are completely independent, meaning that blue TLOCs cannot reach green TLOCs. At this point, it is important to understand the behavior of the WAN edge routers and what is a TLOC. A TLOC (Transport Locator) is a data plane attachment point identified by a 3 values tuple – (System IP, Color, Encap). TLOCs do not have a straight one to one analog in traditional networking, but the closest simplest explanation is that they are just tunnel endpoints. Therefore, if a vEdge device receives a TLOC (tunnel attachment point) from the vSmart controllers, it attempts to establish a tunnel from each of its own TLOCs to this new TLOC. If the tunnel is successfully built, it establishes a BFD session over the tunnel and starts keeping track of the state and the characteristics of it.The next example is not very common but illustrates well the overlay fabric creation. If we have four WAN edge routers attached to two underlay transports as shown on the left in figure 3 and there is full reachability between both clouds, in this case, IPsec tunnels are established between different color TLOCs resulting in the overlay shown on the right. Even with only four sites, there are 24 tunnels, because blue TLOCs can reach green TLOCs, and tunnels between blue and green endpoint are also built. Therefore, if the company has 100 sites, this results in 200*199/2-100 = 39700 IPsec tunnels! If ther……

Did you know there are more than 7000 languages spoken today? Out of those, we will be talking about the 20 most spoken languages in the world as of today. We got our data from Ethnologue, which according to Wikipedia, is “an annual reference publication in print and online that provides statistics and other information on the living languages of the world. It is the world’s most comprehensive catalog of languages. It was first issued in 1951 and is now published by SIL International, an American Christian non-profit organization.”Let’s start! English is the most spoken language in the world, which is no surprise as it is the official language of many countries. According to recent studies, almost 1.5 billion people speak English.Since it’s so widely spoken, English has become the most common language for travel, business, and international communication as a whole.Mandarin Chinese is the second most spoken language in the world, with an estimated 1.1 billion speakers. It is the official language of China, Taiwan, and Singapore, as well as one of four official languages in Malaysia and one of six official languages in Hong Kong.Mandarin Chinese is a tonal language with four tones, which makes it unique compared to other languages. It also has a rich history and culture, which makes it all the more interesting to learn. With such a large population base, Mandarin Chinese plays a vital role in international business and politics.Hindi is the most spoken language in India. Moreover, it’s also the official language of India and Fiji and one of the 22 scheduled languages of India.According spoken io to a recent estimate, more than 600 million people speak Hindi, making it the third most widely spoken language.Hindi has a rich background that dates back centuries with influences from Sanskrit and other regional languages. It is written using the Devanagari script, and its vocabulary consists of words from Sanskrit, Persian, Arabic, English, Portuguese, and other European languages.Next, we have Spanish, with almost 550 million speakers. It is the official language of 21 countries and the second language of many others.Spanish has become vital in int……

Discover the latest spoken-word audio statistics in our roundup. This data will help you get to grips with listener habits and demographics, so you can build an effective audio content strategy for 2022.(Want to know why listening is so popular all of a sudden? Check out our article: Why audio content is booming)We keep this article up to date with the latest research, facts, and numbers, covering: Digital audio statisticsAudio hardware statisticsWho listens to spoken-word audio?Why do people listen to spoken-word audio?How and where do people listen to spoken-word audio?News audio publishing statisticsPodcast statisticsAudio article statisticsAudiobook statisticsRadio statisticsJump straight to the infographic74% of listeners consume audio during their daily rituals⁴⁰40% of listeners plan their day and activities around audio content⁴⁰Digital audio listening experiences have a stronger impact on the brain than radio listening experiences: +25% emotional intensity, +28% detail memory, +25% global memory, and +23% engagement²¹47% of Americans pay for an audio subscription³The average US adult listens to digital audio for 1 hour 34 minutes a day²Spoken-word audio accounts for 28% of digital listening⁴73% of over-12s in the US (approximately 209 million people) listened to online audio in the past month (2022)²⁹:87% of 12 to 34-year-olds81% of 35 to 54-year-olds52% of 55 and overs67% of over-12s (approximately 192 million people) in the US listened to online audio in the last week²⁹71% of over-12s in Australia listened to online audio in the last week, listening for an average 13 hours and 31 minutes³⁸Listened to online audio in the past month (2021)²⁸:UK (16+), 75%Australia (15+), 73%Canada (18+), 71%South Africa (15+), 61%Listened to online audio in the past week (2021)²⁸:UK (16+), 66%Australia (15+), 66%Canada (18+), 61%South Africa (15+), 52% — listening for an average of 6 hours and 20 minutesThe number of smartphone subscriptions worldwide increased by 71% from 2017 to 2021, to 6.3 billion³⁵Global annual headphone sales increased by 51% from 2016 to 2021, to 1.3 billion³⁶35% of over-12s in the US own a smart speaker (2022)²⁹75% s……