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The Purpose of the IP Network Layer (3) of the OSI Model is to perform packet switching from one network to another. Packet Switching is a process of receiving a packet via a routed protocol on a single network and switching to another in such a way that a route to a destination can be reliably achieved (routing) via a routing protocol. Routing is processes of taking multiple network paths and by using an algorithm decide a metric which will determine the most reliable path a packet may take and store it in a table for future reference (routing table). Routing protocols like RIP use algorithms to generate and decipher a list of paths to any particular routed network. Information that is used in this determination includes hop count, reliability and link speed. Today it is widely understood that packet switched networks are superior to circuit switching. IP Multiplexing is more simplified than circuit switching and combines ability to route packets around failures which are measured and predetermined by routing protocols 24/7 365 days a year. One must however come to understand the inherent differences between routed protocols like IP and routing protocols like RIP to begin to develop a clear understanding of switched networks.
Wiki User
∙ 15y ago
Wiki User
∙ 12y ago- Data channels are shared among communication devices improving the use of bandwidth.
- Messages can be stored temporarily at message switches, when network congestion becomes a problem.
- Priorities may be used to manage network traffic.
- Broadcast addressing uses bandwidth more efficiently because messages are delivered to multiple destinations.
Wiki User
∙ 14y agoTwo main advantages. (1) Errors are localized. If a packet becomes damaged, only that packet must be re-sent. (2) Multiplexing: several users, or several connections for the same user, can share the same line.
Wiki User
∙ 13y agoit exists only for the duration of an exchange
It creates a dedicated connection for an exchange
It uses routing tables to determine routes
Wiki User
∙ 10y agoA connection-oriented technology is employed.
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