forked from cerc-io/plugeth
9feec51e2d
This commit introduces a network simulation framework which can be used to run simulated networks of devp2p nodes. The intention is to use this for testing protocols, performing benchmarks and visualising emergent network behaviour.
40 lines
1.1 KiB
Markdown
40 lines
1.1 KiB
Markdown
# devp2p simulation examples
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## ping-pong
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`ping-pong.go` implements a simulation network which contains nodes running a
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simple "ping-pong" protocol where nodes send a ping message to all their
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connected peers every 10s and receive pong messages in return.
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To run the simulation, run `go run ping-pong.go` in one terminal to start the
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simulation API and `./ping-pong.sh` in another to start and connect the nodes:
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```
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$ go run ping-pong.go
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INFO [08-15|13:53:49] using sim adapter
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INFO [08-15|13:53:49] starting simulation server on 0.0.0.0:8888...
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```
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```
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$ ./ping-pong.sh
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---> 13:58:12 creating 10 nodes
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Created node01
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Started node01
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...
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Created node10
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Started node10
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---> 13:58:13 connecting node01 to all other nodes
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Connected node01 to node02
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...
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Connected node01 to node10
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---> 13:58:14 done
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```
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Use the `--adapter` flag to choose the adapter type:
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```
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$ go run ping-pong.go --adapter exec
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INFO [08-15|14:01:14] using exec adapter tmpdir=/var/folders/k6/wpsgfg4n23ddbc6f5cnw5qg00000gn/T/p2p-example992833779
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INFO [08-15|14:01:14] starting simulation server on 0.0.0.0:8888...
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```
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