8 Connections  
 
1.      Persistent Connections ... 8.1  
1.   Purpose ... 8.1.1  
2.   Overall Operation ... 8.1.2  
3.   Proxy Servers ... 8.1.3  
4.   Practical Considerations ... 8.1.4  
2.   Message Transmission Requirements ... 8.2  
1.   Persistent Connections and Flow Control ... 8.2.1  
2.   Monitoring Connections for Error Status Messages ... 8.2.2  
3.   Use of the 100 (Continue) Status ... 8.2.3  
4.   Client Behavior if Server Prematurely Closes Connection ... 8.2.4