having a little trouble persisting through many vips to pool members on a specific host

class lookup is a synonym for class match and equals:

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/class

 

class lookup < item > < class >

 

 

* Equivalent to: class match -value equals

 

 

class search -value allows you to use an operator other than equals like starts_with or ends_with.

 

 

Aaron