The central unit can be located in the building’s main equipment room or, in a campus scenario, in the IS department’s building.ĭistributed backbones generally have a greater degree of fault tolerance than collapsed ones, because the collapsed backbone unit forms a single point of failure. The central unit is often referred to as the collapsed backbone, although this term properly describes the entire configuration. Refers to using cabling to directly join each departmental network’s main hub or router using backbone cabling to a central hub, switch, or router in a star topology (see illustration). ![]() In a typical scenario, each floor or building might have a local area network (LAN) and wiring closet containing, among other things, a main hub or router.īackbone cabling is then run between floors or buildings, connecting the main hub or router for each department into a bus-style network (see illustration). This cabling is referred to as backbone cabling, and it connects the hubs, switches, or routers of each network into a single whole. Refers to using cabling to join different departmental networks in a bus topology or mesh topology. These backbones generally fall into two basic categories: Distributed backbone: How does Backbone work?īackbones are primarily used in medium to large-sized networks, such as those occupying a building or a group of buildings on a campus. The network backbone is a cornerstone of StackPath’s platform.Two types of backbone: distributed and collapsed.Network backbones are dedicated circuits between PoPs, neither shared nor public.A network backbone links otherwise discrete networks together.All of these PoP-to-PoP intermediary requests flow over the network backbone, uninterrupted and quick. This allows for a tremendous de-duplication in the number of requests made to the origin, reducing both the size and cost of that origin. On a cache miss from any individual PoP, that request is forwarded on first to the designated Origin Shield PoP before the Origin Shield makes a request to the origin. Here, one or more PoPs may be designated as an intermediate cache. Example of a Network BackboneĪn example of a network backbone service is StackPath’s Origin Shield. And, since time losses accrue with every network the content has to cross over, fewer networks means faster data transfer. ![]() When a content delivery company like StackPath has a private network backbone, it can bypass any intermediary network that’s part of the public Internet to deliver that content directly over long distances. So Network A can send traffic to Network C via an intermediate network, Network B. The nature of the public Internet is that each network (such as a network transit provider) can pass off traffic meant for another network. Using a dedicated physical circuit that forms a private network backbone can improve performance by 21% compared to using the public Internet for data transit. The StackPath routing table controls which traffic utilizes the network backbone.ĭedicated physical circuit vs public internet.The network backbone is a physical circuit that connects the discrete PoPs together, allowing one PoP’s local network to communicate with a second PoP’s local network, and vice-versa. ![]()
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