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ciscoguy69_1623's avatar
ciscoguy69_1623
Icon for Nimbostratus rankNimbostratus
Dec 04, 2013

Contains vs starts_with behavior

In 11.x code, when the following is used, the LTM responds with a 504. when HTTP_RESPONSE { if {[HTTP::status] contains "5"} { HTTP::redirect "/client-error.html" } }

 

If contains is replaced with starts_with, the redirect appears to work as intended. Knowing the starts_with is the preferred method to avoid unintended matches, why would it respond with a 504 for contains?

 

application delivery
devops
iRules

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  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Dec 06, 2013

    I doubt 'contains' is valid with this command; 'contains 5' could be a 500 or a 205 and isn't really specific enough considering the HTTP status code structure. The requirement to perform some action based on a status code (such as in your case) shouldn't be so loosely defined. 'starts_with' will work as at least you are defining a type of error, if not a specific one. Make sense?