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Forum Discussion

utahman3431's avatar
utahman3431
Icon for Nimbostratus rankNimbostratus
Mar 26, 2021

Ratelimiting iRule Help

I am trying to create an iRule that will rate limit connections to an exchange autodiscover.xml file. We are coming from a netscaler that will keep the session open if the limit is reached, and allow...
application delivery
iRules
LTM
utahman3431's avatar
utahman3431
Icon for Nimbostratus rankNimbostratus
Mar 31, 2021

I've looked into those, and it appears that rate limiting classes and traffic classes are applied from a VS context and affects the amount of traffic going through the entire VS. I am trying to get this narrowed down to a per user basis.

I'm still a little new to creating my own iRules, but there's got to be something that will let a session stay open until a table count threshold has been met.

  • Nikoolayy1's avatar
    Nikoolayy1
    Icon for MVP rankMVP
    Apr 01, 2021

    About rate class it should be applied only to packets matching the iRule if statement not every packet for the VIP will be affected.

     

    Try looking into https://support.f5.com/csp/article/K14813 and "Understanding iRule mitigation" that has a SIP example that you may try to modify for your needs.