[Quickfix-developers] Order routing best practices?

[John H. <jr...@ya...>]

Is there an example  available of best-practice / suggested method for routing orders?  Specifically,  here's what I'm trying to do:
  
 I have an  application which allows users to enter new stock orders, and specify which  exchange or clearing firm they would like to send to (ARCA, Island, ISE, Redi,  Pax).  My FIX interface can correctly route to the desired exchange by passing  in the appropriate TargetCompID (I'm connecting to all five exchanges directly  with five different sessions).  In the event that one of my exchange connections  is down, I'd like my application to immediately re-route the new order to an  available exchange.  This way the order gets in for my users, although not  necessarily to their first choice of exchanges.
  
 What's the  safest/best way to test that a session is logged on and available?  Does  SendToTarget return an error code if the target is not available?  Is there a  Session Logon status I can query prior to calling SendToTarget?  Any suggestions  would be greatly appreciated.
  
 Many  thanks,
  
    John  Haldi
  
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 John Haldi
 Allagash Trading, LLC
 120 Broadway, 20th Floor
 New York, NY 10271
 212.433.3958
 jo...@al...