There are source and destination nodes. The source node generates and shares a feed. The destination node connected to the source and subscribed to the feed.
No discovery servers used.
Two terminals required.
Launch the src node
go run $GOPATH/src/github.com/skycoin/cxo/intro/send_receive/src/src.go
Wait a little time to let the src start its TCP listener. Waiting more, you
can see how node skips old Root objects sending last.
And finally, in another terminal launch the dst node
go run $GOPATH/src/github.com/skycoin/cxo/intro/send_receive/dst/dst.go
The dst node shows received Root objects. Unlike the discovery examples
the dst decodes received values in golang values