[rabbitmq-discuss] Connection is always in "flow" State.

[Lost]

I am run Rabbitmq in my machine(Win7 64bit, 4G ram, 2.9GHz cpu, Erlang OTP R16B03 (x64)).
 I have a client to publish message to rabbitmq(1 connection and 1 channel, in same machine with rabbitmq), no consumer.
 Message rates is 2000/s ~ 3000/s
 Traffic is 300Kb/s ~ 750kB/s
 The channel state is "running", but the connection state is always "flow".
 I found erl.exe cpu is only 5% ~ 10%, but why connection is in "flow" state?
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