Forum Discussion

Domai_23823's avatar
Domai_23823
Icon for Nimbostratus rankNimbostratus
Oct 23, 2018

LTM health monitor question

Hello Guys, I had a health monitor request from application team to make sure that the pool members were marked up if it was any 1,2,3,4 status codes. So in the receive string I used HT...
application delivery
LTM
Andy_McGrath's avatar
Andy_McGrath
Icon for Cumulonimbus rankCumulonimbus
Oct 24, 2018

Try this, it works on https://regex101.com/ but not sure it the regex in F5 allows for negative/inverse matching 

(?!404)

HTTP\/1.(0|1) (?!404)(1|2|3|4)

The ordering is important the 

(?!404)
needs to be in front of any positive match like 
(1|2|3|4)

You also might not need the escape character before the 

/
so it would be:

HTTP/1.(0|1) (?!404)(1|2|3|4)