1/17/2024 0 Comments Example of internet backboneThe size of the "significant" part is relative to business size. Normally, if such a "backbone" router fails, a "significant" part of the network is isolated. An, is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet or to any other network. ![]() Usually the most important routers are the most powerful ones, because they interconnect many pieces of the network together and their non-stop operation is vital. Major carriers of network traffic are known collectively as the. It depends on the importance of the routers for each administrative domain considered. For example, the packet structure, modulation and coding format of DVB-S can be replaced on a piece-by-piece basis with other techniques generally available. In conclusion, this term is a relative one. The customer network that is overlayed above an ISP Frame Relay cloud or any other L2 or 元 type connectivity would have its own IGP and from its point of view some customer routers could be considered as backbone routers. One example is the MAREA cable, a 4,000-mile long cable connecting the United States to Europe, specifically Virginia Beach, Virginia, to Bilbao, Spain. Even major ISP routers that are connected to many customer CPEs could be considered as non-backbone (and be outside area 0). Transatlantic Submarine Cables: Internet backbone relies heavily on undersea fiber-optic cables to transmit data between continents. In most cases the ISP would not even run an IGP with the customer (BGP instead). In an OSPF ISP network the customer routers would not normally be part of area 0 (backbone area) of the provider. ![]() The customer router that connects a customer to the ISP would never be called a "backbone" router from the point of view of the provider. Examples of customer networks have already been mentioned. It might be obvious by now that the term "backbone" router is a relative one.
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