Forum Discussion
utahman3431
Nimbostratus
NimbostratusRatelimiting 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...
Nikoolayy1
MVP
MVPDid you try using a rate limiting rate class?
https://techdocs.f5.com/kb/en-us/products/big-ip-aam/manuals/product/aam-concepts-11-6-0/4.html
https://clouddocs.f5.com/api/irules/rateclass.html
You may also attach a traffic class under the VIP that matches the destination IP address is the one hosting autodiscover.xml
https://techdocs.f5.com/en-us/bigip-14-1-0/big-ip-local-traffic-management-basics-14-1-0/about-traffic-classes.html
utahman3431Nimbostratus
NimbostratusI'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
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.