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zZV#^A9$LFSymmXZc6(&)_UPK}v9;UdYq!H|w= ZbjL@yhkqM|-^W9huNMF2_>MaL{{p54px^)i diff --git a/zk/Packet_switching_British_precursors.md b/zk/Packet_switching_British_precursors.md new file mode 100644 index 0000000..5deb493 --- /dev/null +++ b/zk/Packet_switching_British_precursors.md @@ -0,0 +1,7 @@ +--- +title: Packet_switching_British_precursors +tags: [] +created: Friday, August 09, 2024 +--- + +# Packet switching British precursors diff --git a/zk/Peer_to_peer_network.md b/zk/Peer_to_peer_network.md new file mode 100644 index 0000000..9e14cce --- /dev/null +++ b/zk/Peer_to_peer_network.md @@ -0,0 +1,35 @@ +--- +title: Peer_to_peer_network +tags: [networks] +created: Friday, August 09, 2024 +--- + +# Peer to peer network + +A decentralised network model where each participant (peer) acts as both a +client and a server. + +Resources are shared directly between peers rather than being coordinated via a +server. + +Under a server architecture, multiple requests are made from different hosts for +resources. The server manages this load and is in control of what is being +shared, to whom, and when. With P2P there is no central authority equivalent to +this. Each peer both shares and consumes resources and in this sense is both a +client and a server. + +A practical example of this is [torrenting](Torrenting.md) - an applicaton of +P2P technology to file sharing. + +## Benefits + +- Decentralisation, no central authority, also means no single point of failure. +- Scalable: the network capacity grows with the number of users (contrast + servers) +- Efficiency: idle resources of peers are put to use +- Improved performance for popular content + +## Drawbacks + +- Security: potential for malicious peers and content +- Inconsistent availability of resources diff --git a/zk/Torrenting.md b/zk/Torrenting.md index 1b45d07..3179d32 100644 --- a/zk/Torrenting.md +++ b/zk/Torrenting.md @@ -1,6 +1,6 @@ --- title: Torrenting -tags: [question] +tags: [question, networks] created: Saturday, August 03, 2024 --- @@ -8,3 +8,13 @@ created: Saturday, August 03, 2024 **What is torrenting? Is this the same thing as a peer-to-peer network? How do these technologies fit within the client-server paradigm?** + +Torrenting is a specific application of +[peer_to_peer_networking](Peer_to_peer_network.md) applied to file-sharing. + +Each peer on the network both consumes resources and makes resources available +to others. + +## Procedure + +Large files are divided into small