How to configure HTTP KeepAlive on ACE?

[qixie]

I am not clear how ACE handles the HTTP KeepAlive, list 4 question below.

1. Does "to enable Persistent Rebalance on ACE" mean to enable HTTP KeepAlive?
2. If yes, what is the KeepAlive Timeout?
3. If no, how to configure the KeepAlive on ACE?
4. Is there a good web docs talking about HTTP KeepAlive on ACE?

Please help.  Many Thanks,

Q.Xie

[Surya ARBY]

Are you talking about using HTTP 1.1 (Connection: Keepalive) with backend servers ? Take a look to the "http reuse" feature.

HTTP 1.1 persistence headers are analyzed in the incoming client request. Any connection close headers are dropped, and a connection keepalive header is added as necessary. This sets the request up to maintain the connection with the server.

Create an HTTP parameter map with "server-conn reuse" and "persistence rebalance" and apply it to your VIP.

beware, when using TCP reuse, the MSS must be the same on the back end servers and the ACE