Alert Rule - not working. Wild Card character issue
I have a requirement where I need to trigger alerts for mapping failures
of all the interfaces whose namespace is urn:abc.com:odna* or urn:abc.com.odna*. (in the first instance, there is dot before odna and int he second instance, a colon before odna )
So to suit both the cases, I gave urn:abc.comodna in the Alert Rule.
It worked before. But now its not working.
Then when i changed it to urn:abc.com:odna* it works again. i really dont understand how it worked before and why it fails now.
What is the reason for the unpredicatable behaviour of WildCard Character based Alert Rules?
Should Wild Card Characters be avoided completely?