netty - Netty 4 difference between channel.close() vs channel.disconnect()

Question

I am writing a netty HTTP client with pooled connection, now i added pipeline.addLast("Timeout", new ReadTimeoutHandler(readTimeout)); while building the channel pipeline.

So in ReadTimeoutException i want to just close this connection, without disturbing any other connection in the pool, Now my doubt is shall i call channel.close() and channel.disconnect(), or only channel.close() will be fine enough.

Thanks a lot for any suggestions.