Re: Radware AppDirector Global Triangulation

Hi Mike,

According to the description of the problem it seems the problem is in the local farm at the remote AppDirector. Did you get an sniffer at the AppDirector itself in order to see if the request is going outside to the server? You can do this using "Diagnostics tools" a take a capture of this traffic. It will help a lot to understand the problem.

Thanks,
Juan Carlos Cañete
EMEA Technical Consultant Radware-Alteon


-----Mensaje original-----
De: [email protected] [mailto:[email protected]] En nombre de mwachner
Enviado el: sábado, 22 de agosto de 2009 18:40
Para: [email protected]
Asunto: [load balancing] Radware AppDirector Global Triangulation


Does anyone have any experience configuring Global Triangulation in a Radware
AppDirector (or WSD)?   We are trying to use it as a fallback redirection
method (DNS is primary).  We wouldn't mind using Http Proxy redirection
(which we did get working), but it doesn't seem to support it as a fallback
method.  Also, we can't use HTTP redirection because we can't allow the URL
to change.  So it seems Global Triangulation is the only redirection method
left for HTTP traffic...

Our configuration is straightforward.  There are 2 Global AppDirectors
(1.06.09) - 1 in CA and 1 in NY.  After configuring both Radwares according
to the documentation for Global Triangulation (not using NAT)we are able to
see the request go from the local AppDirector to the remote AppDirector
(hits the Triangulation VIP).  The Remote AppDirector also shows it is
sending the request to a server on the local farm, however, the page hit
never makes it to the local web server and the client connection eventually
times out.  I've setup captures in our firewalls and on the local web server
to verify this. 

It's also interesting to note that if you try and hit the Triangulation VIP
directly it also doesn't work - the request never gets sent to the web
server.

Thanks in advance,
Mike
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