Forum Discussion
NimbostratusiControl.NET How Do I Determine if GTM is passing traffic?
I have an active/active GTM pair (soon to be 3). How can I determine, when I connect to the GTM with iControl.NET, whether or not the GTM is responding to DNS requests? Also, is there a health call I can make to determine if this GTM is functioning properly? A recent issue highlighted this need. I connected to GTM (mgmt interface was up), read WIP statuses and reported them, but this GTM had a link down and was not accepting DNS requests. The other GTM in the pair was getting all requests after timeouts on the first GTM, so while user traffic was flowing, I was reporting that all WIPs were offline. I needed to detect this GTM wasn't functioning right and connect to the other GTM to view WIP information.
4 Replies
shaggyYou could do a DNS query from your management station directly against the GTM listener IP for a test wideIP that always returns an expected fallback IP address (1.1.1.1) - if you get a DNS response it's up, otherwise it's down.
If you want to use iControl, you could grab all statistics from all wideIPs and see if counters have incremented.
- wtatmanThanks shaggy, I'll give that a try.
shaggy_121467Cumulonimbus
You could do a DNS query from your management station directly against the GTM listener IP for a test wideIP that always returns an expected fallback IP address (1.1.1.1) - if you get a DNS response it's up, otherwise it's down.
If you want to use iControl, you could grab all statistics from all wideIPs and see if counters have incremented.
- wtatmanThanks shaggy, I'll give that a try.
