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NetScaler ADNS lookup keeps switching between two countries inspite of static proximity configured


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Hi

 

Was lookin

 

We have NetScalers installed across two datacenters in the US and Japan with an intent to perform GSLB Active Active routing with static proximity configured ..Each NetScaler (2 in US and 2 in japan) are configured as the authoritative DNS server for the domain

gslb.company.com

Domain:gslb.company.com , SOA record for Domain created on each netscaler corresponding to the specific name server

Name servers:

NS1US.company.com

NS2US.company.com

NS1JP.company.com

NS2JP.company.com

 

NS -A records

NS1US.company.com - ADNS IP

NS2US.company.com - ADNS IP

NS1JP.company.com - ADNS IP

NS2JP.company.com - ADNS IP

 

 

Firewall opened from external any to ADNS ips for DNS

 

Each netscaler is configured with a local site and 3 remote sites representing each NS in the region

The GSLB sites are private IPs and are UP

GSLB method configured is Static Proxmity , static db is configured and is resolving the correct location

GSLB persistence is set , persistence IDs are set to the same number

 

However while performing a nslookup to the domain address gslb.company.com , we see the DNS reponses are not consistent and switches between US and JP , from a ASIA PC we would expect it to resolve the JP netscalers consistenly, however that doesnt seem to be the case

 

Would be grateful if you could advice on what could be done to fix this

 

Have enabled ECS and MIR is disabled , but doesnt seem to have helped much

 

 

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