InfoConnect for Airlines
KeepAlivePacketsOption Enumeration


Defines options that specify how InfoConnect periodically polls the host to determine if Telnet connections remain active during intervals when data is not sent to the host.
Syntax
'Declaration
 
Public Enum KeepAlivePacketsOption 
   Inherits System.Enum
'Usage
 
Dim instance As KeepAlivePacketsOption
public enum KeepAlivePacketsOption : System.Enum 
Members
MemberDescription
KeepAliveNoneNo keep alive packets are sent to the host.
KeepAliveNOPA No Operation (NOP) command is periodically sent to the host. The gateway and host are not required to respond to these commands, but the TCP/IP stack can detect if there was a problem delivering the packet. Use KeepAliveTimeout to control the interval between requests.
KeepAliveSystemThe TCP/IP stack keeps track of the host connection. This value requires less system resources than KeepAliveTimingMark or KeepAliveNOP, but most TCP/IP stacks send Keep Alive packets infrequently.
KeepAliveTimingMarkA Timing Mark Command is periodically sent to the host to determine if the connection is still active. The gateway or host should respond to these commands. If InfoConnect does not receive a response or there is an error sending the packet, it shuts down the connection. Use KeepAliveTimeout to control the interval between requests.
Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         Attachmate.Reflection.Emulation.IbmHosts.KeepAlivePacketsOption

See Also