DNS Wide-IP load balancing vs pool load balancing

Thank you crodriguez,

 

Here are the topology records I have

 

gtm topology ldns: country NL server: datacenter /Common/EU-UK {
    order 1
}
gtm topology ldns: country DE server: datacenter /Common/EU-DE {
    order 2
}
gtm topology ldns: country GB server: datacenter /Common/EU-UK {
    order 3
}
gtm topology ldns: country SE server: datacenter /Common/EU-UK {
    order 4
}
gtm topology ldns: country US server: region /Common/US_Datacenters {
    order 5
}
gtm topology ldns: continent EU server: region /Common/EU_Datacenters {
    order 6
}
gtm topology ldns: not continent EU server: region /Common/US_Datacenters {
    order 7
}

I did enable Load Balance Decision Logs, I think on my system (12.1.3.6) they end up on the ltm log, unless I missed something. I configured logging per https://devcentral.f5.com/s/articles/configuring-decision-logging-for-the-f5-big-ip-global-traffic-manager Anywhere here are the entries in the /var/log/ltm....

 

Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 24167 from 173.194.103.7056747: view none: query: dialin.gtm-ext.company.com IN A -EDC (192.168.50.106%0)
Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 24167 from 173.194.103.7056747 [dialin.gtm-ext.company.com A] [topology selected pool (dialin.company.com_europe) - topology score (0) is higher] [topology skipped pool (dialin.company.com) - topology score (0) is not higher] [topology selected pool (dialin.company.com_europe) with the highest topology score (0)] [pool member check succeeded (UCSWEB-EU-UK-EXT:A.B.C.D) - pool member state is available (green)] [QoS selected pool member (UCSWEB-EU-UK-EXT:A.B.C.D) - QoS score (0) is higher] [QoS selected pool member (UCSWEB-EU-UK-EXT:A.B.C.D)] [topology load balancing method failed to select pool member (UCSWEB-EU-UK-EXT:A.B.C.D) - topology score is 0] [failed to select pool member by preferred load balancing method] [pool member check succeeded (UCSWEB-EU-UK-EXT:A.B.C.D) - pool member state is available (green)] [round robin selected pool member (UCSWEB-EU-UK-EXT:A.B.C.D)] [global availability selected pool member (UCSWEB-EU-UK-EXT:A.B.C.D)] 
Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 24167 to 173.194.103.7056747: [NOERROR qr,aa,cd,do] response: dialin.gtm-ext.company.com. 30 IN A A.B.C.D;
Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 34136 from 173.194.103.13450611: view none: query: dialin.gtm-ext.company.com IN A -EDC (192.168.50.106%0)
Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 34136 from 173.194.103.13450611 [dialin.gtm-ext.company.com A] [topology selected pool (dialin.company.com) - topology score (0) is higher] [topology skipped pool (dialin.company.com_europe) - topology score (0) is not higher] [topology selected pool (dialin.company.com) with the highest topology score (0)] [pool member check succeeded (dialin.company.com:E.F.G.H) - pool member state is available (green)] [round robin selected pool member (dialin.company.com:E.F.G.H)] 
Nov 29 09:47:12 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 34136 to 173.194.103.13450611: [NOERROR qr,aa,cd,do] response: dialin.gtm-ext.company.com. 30 IN A E.F.G.H;
Nov 29 09:47:13 DC1-N-DMZ-LTM1 info tmm[18558]: 2018-11-29 09:47:12 DC1-N-DMZ-LTM1.company.com qid 25050 from 173.194.103.7040423: view none: query: dialin.gtm-ext.company.com IN AAAA -EDC (192.168.50.106%0)