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Container Network - "net_basic"
What is the Container Network - "net_basic"?
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"net_basic" is a Docker container network consists of all containers related to Hyperledger Fabric network, basic-network. A container network groups containers together to help network communications among those containers.
You can verify the "net_basic" container network, after you run the start.sh script:
$ cd ~/hyperledger-binaries/fabric-samples/basic-network $ ./strt.sh ... $ docker network inspect net_basic [ { "Name": "net_basic", "Id": "ff13abb21407d7764b667d473f01090077b5ff1c5c8f75b4bcbc670063605170", "Created": "2019-04-01T12:03:41.411515758Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": null, "Config": [ { "Subnet": "192.168.128.0/20", "Gateway": "192.168.128.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": { "12361f3715a349eac6a2a6433a652a9b3ce2d2596557afb8005e4d3305b25f3f": { "Name": "ca.example.com", "EndpointID": "83a004dae45691027e4c2861e86ea78b7188af6dd76a3...", "MacAddress": "02:42:c0:a8:80:03", "IPv4Address": "192.168.128.3/20", "IPv6Address": "" }, "1aa8a1f130e0b49e7cc454ca7957e331d7aaa1f6ad1a90317da25d3274042de2": { "Name": "peer0.org1.example.com", "EndpointID": "96d48509d5699d316f41890fe467c8e79daf321ad373f...", "MacAddress": "02:42:c0:a8:80:05", "IPv4Address": "192.168.128.5/20", "IPv6Address": "" }, "54a9c4e74d1c19a6d761c5645b0996c9612c718ee23f2b44812f1d72e7b61408": { "Name": "orderer.example.com", "EndpointID": "1a79adb524b7a4e1837237f2487ca0968bdf43e2c30b3...", "MacAddress": "02:42:c0:a8:80:02", "IPv4Address": "192.168.128.2/20", "IPv6Address": "" }, "9d3cdd6cc5c820b6dea6552526193ea2f4b4f313b8b9940945ec753502b692a5": { "Name": "couchdb", "EndpointID": "72b9e0a52bb0f74a3d1763a035e0f62d75f243d8d54b5...", "MacAddress": "02:42:c0:a8:80:04", "IPv4Address": "192.168.128.4/20", "IPv6Address": "" } }, "Options": {}, "Labels": {} } ]
As you can see, the "net_basic" network is defined as "local" IP network of 192.168.128.0/20, with each container assigned with a different "local" IP address.
The "net_basic" network allows its containers to do IP protocol communications with their "local" IP addresses.
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