irule for http redirect for micropages

Maybe something like this?

when HTTP_REQUEST {
    set state [getfield [string tolower [HTTP::path]] "/" 2]

    if { [class match $state equals states] } {
        HTTP::respond 301 location "http://abc.com/$state"
    }
}

Create a string data grouplist with all the states (lowercase strings) to match them.

Or if ALL your request is http://xyz.com/[state], then you don't need the data group:

when HTTP_REQUEST {
    set state [getfield [string tolower [HTTP::path]] "/" 2]
    HTTP::respond 301 location "http://abc.com/$state"
}

Beware of multiple redirects if you have other iRule content executed afterwards.

Good luck!

/Patrik