mirror of https://github.com/status-im/op-geth.git
40 lines
1.1 KiB
Markdown
40 lines
1.1 KiB
Markdown
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# 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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