Get a "EOF" error after the client dialed grpc server with keep-alive parameters

[lrouter]

We use the keep-alive paramter when dialing to the grpc stream server. After the connection is set up and sent few requests to the server, the client always get a "EOF" error.
If I remove it, it's ok.
I use grpc bidirectional stream mode. The client dialing code is as following:
s.datapathManagerConn, err = s.Dial(s.cfg.Manager.DatapathManager, grpc.WithInitialConnWindowSize(256*1024), grpc.WithUnaryInterceptor( grpc_retry.UnaryClientInterceptor(grpc_retry.WithMax(5))))
Keep-alive parameter is added at the end.
Why ?
I use tcpdump to check the communication. I found that the previous tcp connection would be closed by the client. And the client will re initiate a new tcp connection for keep-alive.

[easwars]

Could you please let us know the exact keepalive.ClientParameters you use on the client.

And did you configure any keepalive.ServerParameters on the server? And how about keepalive.EnforcementPolicy on the server?

[easwars]

Closing this and using #3093 which has more information.