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--- peering-toolbox:what-is-peering:the_internet_eco-system [2023/03/26 23:55] – [Content Providers] philip
+++ peering-toolbox:what-is-peering:the_internet_eco-system [2023/03/27 00:26] (current) – [Access Providers] philip
@@ Line 23: / Line 23: @@
 Some Access Providers may also provide transit to other (smaller) Access Providers.
-{{:peering-toolbox:what-is-peering:access-provider.png?300|}}
+{{ :peering-toolbox:what-is-peering:access-provider.png?300 |}}
 ===== Regional Providers =====
 Have a presence in many economies. They provide transit to Access Providers, and may be Access Providers themselves (either directly or through specific local subsidiaries).
@@ Line 29: / Line 29: @@
 They buy transit from their upstream providers and usually participate at Internet Exchange Points.
-{{:peering-toolbox:what-is-peering:regional-provider.png?300|}}
+{{ :peering-toolbox:what-is-peering:regional-provider.png?300 |}}
 ===== Global Providers =====
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 (UPDATED)
-Content Distribution Networks (CDNs) use their own infrastructure and transit networks to deliver content for their customers either by private peering or by peering at Internet Exchange Points to the Access Providers whose end users consume it.
+Content Distribution Networks (CDNs) use their own global infrastructure and transit networks to deliver content for their customers either by private peering or by peering at Internet Exchange Points to the Access Providers whose end users consume it.
-Content distribution networks participate actively at Internet Exchange Points and often will provide servers/caches to be hosted either at the IXP or embedded within the network operator infrastructure itself.
+CDNs participate actively at Internet Exchange Points and often will provide servers/caches to be hosted either at the IXP or embedded within the network operator infrastructure itself.
-For content distribution networks, Internet Exchange Points are the easiest and most scalable way of accessing “eye-balls”, the end-users of the IXP members who will be consuming the content being distributed on behalf of their customers.
+For CDNs, Internet Exchange Points are the easiest and most scalable way of accessing “eye-balls”, the end-users of the IXP members who will be consuming the content being distributed on behalf of their customers.
-Content Providers who operate their own CDN use the same approach but the content distributed by the CDN is specific to just the Content Provider.
+Content Providers who operate their own CDN use the same approach but the content distributed by their CDN is specific to just the Content Provider itself.
+{{ :peering-toolbox:what-is-peering:content-plus.png?600 |}}
+In the diagram, one Access Provider at IXP A hosts an embedded cache from CDN 1, and an Access Provider at IXP B hosts an embedded cache from CDN 3. Two other Access Providers only have a PNI with CDNs at the IXPs (no embedded cache server), and the other two Access Providers simply peer across the IX fabric (no PNI and no embedded cache server).
-{{ :peering-toolbox:what-is-peering:content.png?300 |}}
 ===== Internet Exchange Points =====