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routing refers to deciding the route of the packet from one system (a computer) to another system (a computer). It involves many intermediate routers and routing table knowledge.

forwarding is a rather simple process of passing a packet from one port/interface to another port /interface. It generally involves one of the routers and routers forwarding table information


That's what they called call forwarding service in telecommunication.

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14y ago
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14y ago

Routing means finding a suitable path for a packet from sender to destination and Forwarding is the process of sending the packet toward the destination based on routing information.
Forwarding is achieved In telephony using a call forwarding service.

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12y ago

Both of these are used in the network layer for the purpose of data sending on different paths.

In the forwarding network layer function, the data or packet is transferred form one incoming link and then reached to the other outgoing link, the main thing is that all these transfer of packets is done within a single router. When any packet reach at the input link of the router, then router must have to transfer the packet to its correct output link.

On the other hand the routing function is used to send the packets form one PC to another PC within two different routers. Its means that routing occur between the two routers of network, their combined communication by means of routing protocols decide the routes or paths, that packets would acquire, on their journey from source to destination. It is the responsibility of the network layer that, it would decide the appropriate path for the packet, for sending it to its desired receiver. For selecting the correct path for sending the data, the network layer use the routing algorithm. The routing algorithm is responsible for choosing the best path out of many paths. Means the path which is more clear, short and with out hurdles.

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16y ago

Routing is based upon IP address and switching is based upon hardware MAC address. See OSI model - Layer 2 vs Layer 3.

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Q: What is the difference between routing and forwarding?
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