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35 lines
808 B
Markdown
35 lines
808 B
Markdown
---
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title: "19-network-layer-data-plane"
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aliases:
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tags:
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- cosc203
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- lecture
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---
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- transport layer messages are divided into segments
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- passed to network layer
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- sender: encapsulates segments into IP packets, passes to link layer
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- reciever: deliver segments to tranport layer protocol
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- sender and reciever are connected by multple routers
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- routers
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- examine header fields in all IP packets passing through it
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- moves IP packers from input ports to output ports to transfer packets along end-end path
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- network layer protocols
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- IP
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- internet control message protocol (ICMP)
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- use for troubleshooting type things
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# Forwarding
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move packets from a routers input link to appropriate output link
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# Routing
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# Routers
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# IP addressing
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# IPv6 |