Lightboard Lessons: F5 BIG-IP DNS (GTM) iQuery Protocol Overview

  hope you are well?

I have two question regarding a full mesh between DNS (GTM) and LTM's

Question 1

Here is my example:

3 DC's (Call them DC1/2/3)

Each DC contains 1 GTM and 2 LTM's

When a netstat command is executed how many tcp 4353 (iquery) connections should be seen on say DC 1?

I would say that it will be 9 as there is a connection to all GTM's and LTM's in each DC and then a connection to the GTM itself in the DC1

Question 2

Config sync between GTM's

Again 3 DC's same as above

netstat shows that DC 3 iquery is incomplete

DC1 -> DC2 OK

DC1 -> DC3 FAILED

DC2 -> DC1 OK

DC2 -> DC3 FAILED

DC3 -> DC1 OK

DC3 -> DC2 OK

Chnages made on DC 3 will not sync to any of the other GTM's is this correct?

Thanks