GTM wide ip pool persistence and one pool with 3 x LTM VS
Hello,
Our user WWW clients have three possible routes to the internet and are using GTM to resolve proxy name in a pac file to to a virtual server [VS] in a pool in a wide IP. There are three Big-IPs.
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The F5 GTMs are data linked
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Each F5 has one VS for WWW client to resolve proxy to via the GTM wide ip
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The wide IP has a pool with all three VS
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the users are resolved to one of the VS IPs for proxy.
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the VSs are configured as explicit forward proxies
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the next hop to each F5 is a local internal firewall
Everything works great and has done for quite some time but due to volumes and firewall out of state we need to persist users to a particular VS route out and not get balanced out via different VSs.
If we wanted to persist the clients to a particular VS after the GTM resolves, can we do that with this configuration on the Wide IP Pool? My concern is the config has one wide IP pool which contains the VSs and we are not sure if the Wide IP pool persistence operates down to the pool VS or if it has to work with more than one pool?
Thanks for any help,
Derrick